home *** CD-ROM | disk | FTP | other *** search
-
- ΓòÉΓòÉΓòÉ 1. Introduction ΓòÉΓòÉΓòÉ
-
- OS/2 REXHLAPI Dynamic Link Library Reference
- Version 1.00
- (c) Copyright W. David Ashley 1991. All rights reserved.
- Program and Documentation by
- W. David Ashley
-
- No warranties, guarantees, etc. are implied, and no liability is assumed for
- the code, examples, DLLs, or documentation.
-
- This software is user-supported software and may be freely copied and used by
- anyone who wishes to do so as long as the following conditions are met:
-
- 1. These functions may not be used by any program for which a fee is charged
- unless the owner of the program has paid the registration fee.
-
- 2. If you transmit a copy of this software to another party you must give
- them the complete unaltered contents of the REXHLAPI.ZIP file.
-
- 3. If you make any modifications to these functions you must change the name
- of the dynamic link library file REXHLAPI.DLL to some other name.
-
- If you feel that this program has benefited you, please register it by sending
- $25.00 to:
-
- W. David Ashley
- 5 Timberline Dr.
- Trophy Club, Tx 76262
-
- The source code for REXHLAPI can be obtained by sending $75.00 ($25.00
- registration + $50.00 source code) to the same address.
-
- If you have questions, comments or suggestions please contact me through the
- OS/2 Shareware BBS or at the address above.
-
- DESCRIPTION
-
- This document is intended for application developers who wish to use EHLLAPI
- services from OS/2 REXX cmds. The EHLLAPI services are available in REXX as an
- external function package, and are loaded only when used.
-
- A general understanding of the available EHLLAPI services to Communications
- Manager by the reader is assumed by the author. For more information on the
- specific services available in EHLLAPI refer to the IBM Operating System/2
- Extended Edition Version 1.2 EHLLAPI Programming Reference manual.
-
- BEFORE YOU BEGIN
-
- Before you begin to use this reference, it would be helpful to understand how
- you can:
-
- o Expand the Contents window to see all available topics
- o Obtain additional information for a highlighted word or phrase
- o Use action bar choices.
-
- HOW TO USE THE CONTENTS
-
- When the Contents window is first displayed, some topics have a plus (+) sign
- beside them. The plus sign indicates that additional topics are available.
-
- To expand the Contents window if you are using a mouse, click on the plus
- sign. If you are using the keyboard, use the Up Arrow () or Down Arrow ()
- key to highlight the topic and press the Plus (+) key. For example,
- Introduction has a plus sign beside it. To see the complete list of topics,
- click on the plus sign or highlight that topic and press the Plus key.
-
- To view a topic, double-click on the topic (or press the Up Arrow or Down
- Arrow key to highlight the topic and then press the Enter key).
-
- HOW TO OBTAIN ADDITIONAL INFORMATION
-
- After you select a topic, the information for that topic is displayed in a
- window. Highlighted words or phrases indicate that additional information is
- available. You will notice that certain words in the following section are
- highlighted. If you are using a mouse, double-click on the highlighted word.
- If you are using a keyboard, press the Tab key to move to the highlighted word
- and then press the Enter key. Additional information will be displayed in a
- pop-up window.
-
- HOW TO USE ACTION BAR CHOICES
-
- A number of choices are available for managing information presented in the
- OS/2 LAN Command Reference. If you want to see more information about these
- choices, double-click on the name of the choice (or press the Tab key to move
- to the choice and press the Enter key).
-
- Bookmark Allows you to set a placeholder so you can retrieve information of
- interest to you. (This choice is available from the Services
- pull-down.)
-
- Search Allows you to find occurrences of a word or phrase in the current
- topic, selected topics, or all topics. (This choice is available
- from the Services pull-down.)
-
- Print Allows you to print one or more topics. (This choice is available
- from the Services pull-down.)
-
- Copy Allows you to copy a topic you are viewing to a file you can edit.
- (This choice is available from the Services pull-down.)
-
- Options Allows you to change the way your Contents window is displayed.
-
- TRADEMARKS
-
- The following trademarks apply to this reference:
-
- o IBM is a registered trademark of International Business Machines
- Corporation.
-
- o Operating System/2 and OS/2 are trademarks of International Business
- Machines Corporation.
-
- o Personal System/2 and PS/2 are trademarks of International Business Machines
- Corporation.
-
- o REXX/2 is a trademark of International Business Machines Corporation.
-
-
- ΓòÉΓòÉΓòÉ 1.1. Requirements ΓòÉΓòÉΓòÉ
-
- REXHALPI requires the following environment
-
- o OS.2 1.2 Extended Edition or later
-
-
- ΓòÉΓòÉΓòÉ 1.2. Installation ΓòÉΓòÉΓòÉ
-
- Copy REXHLAPI.DLL to a directory specified in your LIBPATH.
-
- Note: If you have a previous copy of REXHLAPI loaded and OS/2 cannot
- open/replace the file then a copy of the DLL currently resides in memory.
- Reboot and before executing any REXX cmds that reference REXHLAPI copy the file
- to your LIBPATH destination.
-
-
- ΓòÉΓòÉΓòÉ 1.3. Usage ΓòÉΓòÉΓòÉ
-
- Add the following lines to all application cmds to insure the function is
- registered.
-
- if RxFuncQuery('rexhllapi') then ,
- call RxFuncAdd 'rexhllapi', 'rexhlapi', 'rexhllapi'
-
- The above example would add the REXHLLAPI function so that it can be used. The
- first argument specifies how you wish to refer to the function in your program
- (its name in the program). The second argument references the name of the
- REXHLAPI.DLL library (always 'REXHLAPI'). And the third argument references the
- name of the entry point in the library which contains the code for the function
- referenced in the first argument (always 'REXHLLAPI').
-
- To drop the function when the application is done execute the following.
-
- call RxFuncDrop 'rexhllapi'
-
- The function name now becomes unknown to the interpreter and will generate a
- runtime error if used after this point in the program.
-
- Refer to IBM Operating System/2 Procedures Language 2/REXX Reference manual for
- more information on the RxFuncAdd and RxFuncDrop statements.
-
- Note: The case of the strings passed to RxFuncAdd and RxFuncDrop is not
- important. The string will be converted to all upper case by the REXX
- interpreter automatically.
-
-
- ΓòÉΓòÉΓòÉ 2. How to Read the Syntax Diagrams ΓòÉΓòÉΓòÉ
-
- The syntax diagram shows you how to specify a function so that REXX/2 can
- correctly interpret what you type. Read the syntax diagram from left to right
- and from top to bottom, starting at the ΓöÇ symbol, following the horizontal
- line (the main path). A line ending with an ΓöÇ means that the command syntax is
- continued. A line starting with an ΓöÇ means that the syntax is continued from
- the previous line. The ΓöÇ symbol marks the end of the function syntax.
- Required parameters are displayed on the main path; optional parameters are
- displayed below it.
-
- Parameters are classified as constants or variables. String constants must be
- delimited by the standard REXX/2 quotation marks. A function name is a keyword.
- REXX/2 functions may be either CALLed or referenced as a function entry. Some
- of the external functions presented here do not return any values.
-
- Variables appear in lowercase letters and represet names or values you supply.
- Include all punctuation shown in the diagram, such as colons, semicolons,
- commas, quotation marks, and equal signs.
-
- Example:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Change_Window_Name', nameparmΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
-
- ΓòÉΓòÉΓòÉ 3. Functions Overview ΓòÉΓòÉΓòÉ
-
- The EHLLAPI function package provides a single function name to be used with a
- set of parameters.
-
- The general format of the EHLLAPI function invocation is:
-
- retval = REXHLLAPI(function-string [, parameters]);
- or
- call REXHLLAPI function-string [, parameters];
-
- The function-string determines the EHLLAPI function to be invoked. The case of
- the function-string is not significant but the case of all parameters are used
- by the function package as they are passed to it. The number of parameters is
- dependent on the EHLLAPI function to be invoked.
-
- Generally the data returned by a function is the return code generated by the
- coresponding EHLLAPI function of the same name or a data string returned by the
- specified function. In all cases if the function package determines an error in
- the number of parameters or some other general error then the specified
- function is not performed and the null string ('') is returned.
-
- In addition, the REXX variable HLLAPIRETC is also set by the REXHLAPI function
- package. The combination of the returned data string and the contents of the
- REXX variable HLLAPIRETC provide a clear mechanism in determining the results
- of the execution of any of the EHLLAPI functions. The following outlines all
- the possible combinations and their meaning:
-
- o If both the returned data and the HLLAPIRETC variable are the null string
- ('') then there was an error detected in the number of input argument(s) to
- the function or their contents.
-
- o If the HLLAPIRETC is the null string and the returned data is not the null
- string then the returned data should be ignored because the specified
- EHLLAPI function was not performed. The only exception to this rule is the
- Get_RexHLLAPI_Ver service because it does not execute an EHLLAPI function.
-
- o If the returned data is not the null string and it is equal to the
- HLLAPIRETC variable then the specified EHLLAPI function was executed and the
- return code from that function has been returned in the returned data.
-
- o In all other cases the specified EHLLAPI function will have been executed
- and data from that function is returned. The return code from the function
- will be set in the HLLAPIRETC variable.
-
- The function-strings, parameters and returned data follow in alphabetical
- order.
-
-
- ΓòÉΓòÉΓòÉ 3.1. Change_Window_Name (Service 106) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Change_Window_Name', nameparmΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Changes the presentation space window name to the specified new name. The old
- name is saved by the system and is restored on a call to the Disconnect_PS
- service or changed on a subsequent call to the Change_Window_Name service.
-
- Prerequisite Calls:
-
- Connect_Window_Srvcs service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Change_Window_Name'.
-
- nameparm A string of the form:
-
- o 1 byte short session name
- o 1 byte change option
-
- - A x'01' for changing the presentation space name
- - A x'02' for resetting the presentation space name
-
- o 1-60 bytes containing the new presentation space name. If byte 2 is x'02'
- then this field is optional. The maximum length of the new name is 60
- characters.
-
- Returns:
-
- The return code from the Change_Window_Name EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Byte 1 of nameparm is invalid
-
- '2' nameparm error
-
- '9' System error
-
- '11' Session is stopped
-
- Example:
-
- Change the 'A' session window name to "My Program".
-
- call REXHLLAPI 'Connect_PM_Srvcs', 'A'
- call REXHLLAPI 'Change_Window_Name', 'A' || c2x('01') || 'My Program'
- call REXHLLAPI 'Disconnect_PM_Srvcs', 'A'
-
-
- ΓòÉΓòÉΓòÉ 3.2. Change_Switch_Name (Service 105) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Change_Switch_Name', nameparmΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Changes the presentation space switchlist name to the specified new name. The
- old name is saved by the system and is restored on a call to the Disconnect_PS
- service or changed on a subsequent call to the Change_Switch_Name service.
-
- Prerequisite Calls:
-
- Connect_Window_Srvcs service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Change_Switch_Name'.
-
- nameparm A string of maximum length layed out as follows:
-
- o 1 byte short session name
- o 1 byte change option
-
- - A x'01' for changing the switch list name of the PS
- - A x'02' for resetting the switch list name of the PS
-
- o 1-60 bytes containing the new switch list name. If byte 2 is x'02' then
- this field is optional. The maximum length of the new name is 60
- characters.
-
- Returns:
-
- The return code from the Change_Switch_Name EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Byte 1 of nameparm is invalid
-
- '2' nameparm error
-
- '9' System error
-
- '11' Session is stopped
-
- Example:
-
- Change the 'A' session switch list name to "My Program".
-
- call REXHLLAPI 'Connect_PM_Srvcs', 'A'
- call REXHLLAPI 'Change_Switch_Name', 'A' || c2x('01') || 'My Program'
- call REXHLLAPI 'Disconnect_PM_Srvcs', 'A'
-
-
- ΓòÉΓòÉΓòÉ 3.3. Connect_PM_Srvcs (Service 101) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Connect_PM_Srvcs', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Connects the application to a presentation space for only the EHLLAPI
- Presentation Manager services.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Connect_PM_Srvcs'.
-
- session_id The short session name of the presentation space in which PM
- services are to be performed.
-
- Returns:
-
- The return code from the Connect_PM_Srvcs EHLLAPI service is returned.
-
- '0' Ok
-
- '1' session_id was invalid
-
- '9' System error
-
- '10' Function not supported
-
- '11' System resource unavailable. Presentation space already in use.
-
- Example:
-
- retc = REXHLLAPI('Connect_PM_Srvcs', 'A')
-
-
- ΓòÉΓòÉΓòÉ 3.4. Connect_PS (Service 1) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Connect_PS', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Connects the program to a logical Communications Manager session specified by
- the presentation space short name session_id. See the Communications Manager
- Configuration services to determine the names of the sessions configured on
- your system or use the service Query_sessions to obtain the session information
- dynamically.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Connect_PS'.
-
- session_id The short session name (1 character) of the session you wish to
- be connected to. The case of this character is not important.
-
- Returns:
-
- The return code from the Connect_PS EHLLAPI service is returned.
-
- '0' Connected ok
-
- '1' Invalid session_id
-
- '4' Connect, session busy
-
- '5' Connect, session locked
-
- '9' System error
-
- '11' Session already connected to another application
-
- Note: Other return codes are possible from this service.
-
- Example:
-
- retc = REXHLLAPI('Connect_PS', 'A')
-
-
- ΓòÉΓòÉΓòÉ 3.5. Convert_Position (Service 99) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇrow = RexHLLAPI('Convert_Position', session_id, position)ΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Converts position to row/column.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Convert_Position'.
-
- session_id The short session name (1 character) identifying the session
- from which the conversion info is to be taken.
-
- position The position to be converted to row/column format. Valid
- argument values for a 24 by 80 presentation space would be 1 to
- 1920.
-
- Returns:
-
- The return code from the Convert_Position EHLLAPI service is returned.
-
- '0' Position specified is outside the presentation space
-
- > '0' < '9998' The row number of the converted position
-
- = '9998' Invalid session_id
-
- = '9998' REXHLAPI internal error. Contact author.
-
- Note: If this function returns a value > '0' < '9998' then the REXX variable
- HLLAPIRETC contains the column number of the converted position.
-
- Example:
-
- The following example
-
- row = REXHLLAPI('convert_pos', 'a', 170);
- /* Now ROW = '3' and HLLAPIRETC = '10' */
-
- would return '3' and set HLLAPIRETC = '10' in a 24 by 80 presentation space.
-
-
- ΓòÉΓòÉΓòÉ 3.6. Convert_RowCol (Service 99) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpos = RexHLLAPI('Convert_RowCol', session_id, column, row)ΓöÇΓöÇ
-
- Purpose:
-
- Converts row/column info in the session session_id, to presentation space
- position.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Convert_RowCol'.
-
- session_id The short session name (1 character) identifying the session
- from which the conversion info is to be taken.
-
- col The column component to be converted. Valid argument values for
- a 24 by 80 presentation space would be 1 to 80.
-
- row The row component to be converted. Valid argument values for a
- 24 by 80 presentation space would be 1 to 24.
-
- Returns:
-
- The return code from the Convert_RowCol EHLLAPI service is returned.
-
- '0' Row or column specified is outside presentation space
-
- > '0' < '9998' The position (upper left is position 1)
-
- = '9998' Invalid session_id
-
- = '9998' REXHLAPI internal error. Contact author.
-
- Example:
-
- The following example
-
- pos = REXHLLAPI('convert_rowcol', 'a', 10, 3);
-
- would return '170' in a 24 by 80 presentation space.
-
-
- ΓòÉΓòÉΓòÉ 3.7. Copy_Field_To_Str (Service 34) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇfielddata = RexHLLAPI('Copy_Field_To_Str', pos, length)ΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Copies the field data located at pos in the connected presentation space, for
- length length. The pos and length values can be found by using the
- Find_field_pos and Find_field_len services described elsewhere in this manual.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Copy_field_to_str'.
-
- pos The position of the field to be copied.
-
- length The number of character to be copied.
-
- Returns:
-
- The requested field data string is returned.
-
- '' No field data at pos, or invalid pos. Check the value of the REXX
- variable HLLAPIRETC.
-
- fielddata The data of length length or up to the end of the field at pos.
-
- Example:
-
- The following example
-
- fielddata = REXHLLAPI('copy_field_to_str', 26, 10);
-
- would copy 10 characters at position 26 from the currently presentation space.
-
-
- ΓòÉΓòÉΓòÉ 3.8. Copy_Oia (Service 13) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇoiadata = RexHLLAPI('Copy_Oia')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the Operator Information Area from the connected session. Refer to the
- IBM Operating System/2 Extended Edition Version 1.2 EHLLAPI Programming
- Reference manual for more information on the contents of the Oia data.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Copy_Oia'.
-
- Returns:
-
- The Operator Information Area data string is returned.
-
- '' Not connected or other error. Check the value of the REXX variable
- HLLAPIRETC.
-
- oiadata A 103 byte copy of the OIA data consisting of
-
- o A 1 byte format field set to '1'
- o An 80 byte data field with the contents of the OIA line
- o A 22 byte OIA group field
-
-
- ΓòÉΓòÉΓòÉ 3.9. Copy_PS (Service 5) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpsdata = RexHLLAPI('Copy_PS')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Return the entire contents of the currently connected session or '' (null
- string) if not connected to a session. The contents of the returned data is
- dependant on the setting of the EAB (Extended Attribute Bytes) value in the
- Set_session_parms service described elsewhere. Briefly, if EAB is OFF then only
- the TEXT of the presentation space will be returned. If EAB is ON then 2 bytes
- will be returned for each displayable byte on the screen. The first will
- contain the EAB value, the second will contain the text data.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Copy_PS'.
-
- Returns:
-
- The entire contents of the currently connected presentation space are returned
- as a single string.
-
- '' Not connected or other error. Check the value of the REXX variable
- HLLAPIRETC.
-
- psdata 1920 bytes of data if the presentation space is 24 x 80 and the EAB
- is OFF, 3840 bytes if the EAB is ON.
-
-
- ΓòÉΓòÉΓòÉ 3.10. Copy_PS_To_Str (Service 8) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpsdata = RexHLLAPI('Copy_PS_To_Str', pos, length)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns data from the curently connected session from position pos for length
- length, or '' if not connect or an error. See the discussion of EAB setting in
- the Copy_PS service elsewhere.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Copy_PS_to_str'.
-
- Returns:
-
- The specified portion of the currently connected presentation space is
- returned as a string.
-
- '' Not connected or other error. Check the value of the REXX variable
- HLLAPIRETC.
-
- psdata length characters of data if the EAB is OFF or length x 2 if the EAB
- is ON.
-
- Example:
-
- The following example
-
- psdata = REXHLLAPI('copy_ps_to_str', 26, 10);
-
- would copy 10 characters at position 26 from the currently presentation space.
-
-
- ΓòÉΓòÉΓòÉ 3.11. Copy_Str_to_Field (Service 33) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Copy_str_to_field', string, posΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Copies string to the field at pos position in the connected session.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Copy_str_to_field'.
-
- string Data string to be copied.
-
- pos Position of the destination field in the presentation space.
-
- Returns:
-
- The return code from the Copy_str_to_field EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Target not allowed
-
- '2' Zero length string
-
- '5' Protected field or bad string data (bad attribute)
-
- '6' Data copied, but truncated because string was longer than the field.
-
- '7' pos is invalid
-
- '24' The screen has no fields (unformatted)
-
- Example:
-
- The following example
-
- call REXHLLAPI 'copy_str_to_field', 'logoff', 90
-
- would copy the string 'logoff' to the currently presentation space field at
- postion 90.
-
-
- ΓòÉΓòÉΓòÉ 3.12. Copy_Str_to_PS (Service 15) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Copy_str_to_PS', string, posΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Copies string to pos position in the connected session.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Copy_str_to_PS'.
-
- string Data string to be copied.
-
- pos Position of the destination in the presebtation space.
-
- Returns:
-
- The return code from the Copy_str_to_PS EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Target not allowed
-
- '2' Zero length string
-
- '5' Protected field or bad string data (bad attribute)
-
- '6' Data copied, but truncated because string was longer than the field.
-
- '7' pos is invalid
-
- Example:
-
- The following example
-
- call REXHLLAPI 'copy_str_to_ps', 'logoff', 90
-
- would copy the string 'logoff' to the currently presentation space at position
- 90.
-
-
- ΓòÉΓòÉΓòÉ 3.13. Disconnect_PM_Srvcs (Service 102) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Disconnect_PM_Srvcs', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Disconnects the Presentation Manager window services connection.
-
- Prerequisite Calls:
-
- Connect_Window_Srvcs service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Disconnect_PM_Srvcs'.
-
- Session_id The short session presentation space name from which to
- disconnect.
-
- Returns:
-
- The return code from the Disconnect_PM_Srvcs EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Not connected
-
- '9' System error
-
- Example:
-
- call REXHLLAPI 'Disconnect_PM_Srvcs', 'A'
-
-
- ΓòÉΓòÉΓòÉ 3.14. Disconnect_PS (Service 2) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Disconnect_PS'ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Disconnects from the currently connected presentation space session.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Disconnect_PS'.
-
- Returns:
-
- The return code from the Disconnect_PS EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Not connected
-
- Example:
-
- call REXHLLAPI 'Disconnect_PS'
-
-
- ΓòÉΓòÉΓòÉ 3.15. Find_Field_Len (Service 32) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Find_Field_Len', search_option, posΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the length of the field with attributes search_option starting at
- position pos within the current field or '0' if the specified field type could
- not be found.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Find_Field_Len'.
-
- search_option The values for search_option are:
-
- ' ' or 'T ' The current field (the field that the cursor is in)
- 'P ' Previous field, either protected or unprotected.
- 'NP' Next protected field
- 'NU' Next unprotected field
- 'PP' Previous protected field
- 'PU' Previous unprotected field
-
- pos The starting position in the presentation space from which
- the search is to begin.
-
- Returns:
-
- The length of the found specified field type is returned.
-
- '0' The specified field type could not be located
-
- > '0' The length of the found specified field type
-
-
- ΓòÉΓòÉΓòÉ 3.16. Find_Field_Pos (Service 31) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Find_Field_Pos', search_option, posΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the position of the field with attributes search_option starting at
- position pos within the presentation space or '0' if the specified field type
- could not be found.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Find_Field_Pos'.
-
- search_option The values for search_option are:
-
- ' ' or 'T ' The current field (the field that the cursor is in)
- 'P ' Previous field, either protected or unprotected.
- 'NP' Next protected field
- 'NU' Next unprotected field
- 'PP' Previous protected field
- 'PU' Previous unprotected field
-
- pos The starting position in the presentation space from which
- the search is to begin.
-
- Returns:
-
- The position of the found specified field type is returned.
-
- '0' The specified field type could not be located
-
- > '0' The position of the found specified field type
-
-
- ΓòÉΓòÉΓòÉ 3.17. Get_key (Service 51) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇkeyval = RexHLLAPI('Get_key', session_id)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Return the next intercepted keystroke from the session specified. The service
- Start_Keystroke_Intercept enables the application to intercept keystrokes from
- the user.
-
- For more information on the returned data from this function refer to the IBM
- operating System/2 Extended Edition Version 1.2 EHLLAPI Programming Reference
- manual.
-
- Prerequisite Calls:
-
- Start_Key_Intercept service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Get_Key'.
-
- session_id The short session name of the presentation space from which to
- obtain the keystroke.
-
- Returns:
-
- The intercepted keystroke data string is returned.
-
- '' If an error, or not connected to session_id. Check the value of the
- REXX variable HLLAPIRETC.
-
- keyval If no error, the contents of string depend on the keys pressed by
- the 3270 session operator, for example:
-
- Byte 1 The session_id
- Byte 2 The ASCII code for the key 'a'
- Bytes 3-4 A keystroke mnemonic, '@E' (enter)
-
- Other lengths of keyval are possible (maximum length 8 characters) as well as
- other combinations of data.
-
-
- ΓòÉΓòÉΓòÉ 3.18. Get_RexHLLAPI_Ver ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇver = RexHLLAPI('Get_RexHLLAPI_Ver')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the version of the REXHLAPI.DLL which is currently running. This
- function does not execute any EHLLAPI services.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- None.
-
- Returns:
-
- The version and compilation date data string is returned.
-
- '' Error, invalid number of arguments.
-
- ver String containing REXHLAPI version info in the form 'x.xx mmm
- [d]d,yyyy' where
-
- o x.xx is the version number
- o mmm is the month of compliation
- o dd is the day of compilation (1 or 2 characters)
- o yyyy is the year of compliation
-
- Example:
-
- version = substr(REXHLLAPI('Get_RexHLLAPI_Ver'), 1, 4)
- compdate = substr(REXHLLAPI('Get_RexHLLAPI_Ver'), 6)
-
-
- ΓòÉΓòÉΓòÉ 3.19. Pause (Service 18) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Pause', nΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Causes a timed pause of n 1/2 second intervals to occur.
-
- If the Set_session_Parms service (described elsewhere) set IPAUSE and you have
- done a Start_host_notify service, then the pause will also be ended by an
- update to the to the host screen.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Pause'.
-
- n The number of 1/2 seconds to pause.
-
- Returns:
-
- The return code from the Pause EHLLAPI service is returned.
-
- '0' Pause duration completed
-
- '9' System error
-
- '26' A host session has been updated, use Query_host_Update service for
- more information
-
- Example:
-
- The following example
-
- call REXHLLAPI 'Pause', 20
-
- will cause a 10 second, or if IPAUSE has been set will cause a pause until the
- host presentation space has been updated or 10 second pause whichever is
- shorter.
-
-
- ΓòÉΓòÉΓòÉ 3.20. PM_Window_Status (Service 104) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇstatusdata = RexHLLAPI('PM_Window_Status', statusdata)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Allows an application to query or change a PS window size, location, or visible
- state.
-
- Prerequisite Calls:
-
- Connect_Window_Srvcs service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'PM_Window_Status'.
-
- statusdata 16 bytes of data specifying the status action to take. Refer to
- the IBM Operating System/2 Extended Edition Version 1.2 EHLLAPI
- Programming Reference manual for the layout of the data.
-
- Returns:
-
- The window status data string is returned.
-
- '' Error. Check the value of the REXX variable HLLAPIRETC.
-
- statusdata Function successful, status information returned
-
-
- ΓòÉΓòÉΓòÉ 3.21. Post_Intercept_Status (Service 52) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Post_Intercept_Status', statusdataΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Informs EHLLAPI that a keystroke obtained through the Get_Key service was
- accepted or rejected.
-
- Prerequisite Calls:
-
- Start_Key_Intercept service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Post_Intercept_Status'.
-
- statusdata 2 bytes of data as follows:
-
- o 1 byte indicating the session id or a blank specifying the current
- connected session
- o 1 byte option. 'A' for keystroke accepted or 'R' for keystroke rejected.
-
- Returns:
-
- The return code from the Post_Intercept_Status EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Presentation space invalid
-
- '2' Invalid option specified
-
- '8' No prior Start_Keystroke_Intercept service has been called
-
- '9' System error
-
- Example:
-
- The following example
-
- keydata = REXHLLAPI('Get_key', 'A')
- call REXHLLAPI 'Post_intercept_status', 'AR'
-
- will reject the previous keystroke obtained by the Get_Key service.
-
-
- ΓòÉΓòÉΓòÉ 3.22. Query_Close_Intercept (Service 42) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Query_Close_Intercept', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Allows the application to determine if the CLOSE option on the pull-down menu
- was selected.
-
- Prerequisite Calls:
-
- Start_Close_Intercept service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Close_Intercept'.
-
- session_id The short session name of the presentation space to query
-
- Returns:
-
- The return code from the Query_Close_Intercept EHLLAPI service is returned.
-
- '0' Close intercept did not occur
-
- '1' Presentation space invalid
-
- '2' Invalid parameter specified
-
- '8' No prior Start_Close_Intercept service has been called
-
- '9' System error
-
- '12' The session is stopped
-
- '26' A close intercept occurred since the last Query_Close_Intercept
- service call
-
-
- ΓòÉΓòÉΓòÉ 3.23. Query_Cursor_Loc (Service 7) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpos = RexHLLAPI('Query_Cursor_Loc')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the cursor position in the currently connected session or '0' if not
- connected to a session.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Cursor_Loc'.
-
- Returns:
-
- The position of the cursor is returned.
-
- '0' System error occured or not connected
-
- > '0' The cursor position within the connected presentation space
-
-
- ΓòÉΓòÉΓòÉ 3.24. Query_Field_Attr (Service 14) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇattr = RexHLLAPI('Query_Field_Attr', pos)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the text representation of the attribute of the field located at
- position pos in the currently connected session or '0' if not connected to a
- session or the session was currently an unformatted screen. The attribute bytes
- are greater than x'C0' and are returned as printable characters ('C0' in this
- case).
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Field_Attr'.
-
- pos The position within the connected presentation space
-
- Returns:
-
- The field attribute byte is returned.
-
- '' System error occured, not connected or the screen was unformatted.
- Check the value of the REXX variable HLLAPIRETC.
-
- attr One byte representation of the field attribute
-
-
- ΓòÉΓòÉΓòÉ 3.25. Query_Host_Update (Service 24) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇretc = RexHLLAPI('Query_Host_Update', session_id)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Determines if the host has updated the presentation space, OIA or both since:
-
- o The Start_Host_Notification service was called.
- o A previous call to the Query_Host_Update service.
-
- Prerequisite Calls:
-
- Start_Host_Notify service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Host_Update'.
-
- session_id The short name for the presentation space to query
-
- Returns:
-
- The return code from the Query_Host_Update EHLLAPI service is returned.
-
- '0' No update since last call
-
- '1' Not connected to a session
-
- '8' Host notification has not been requested (see the Start_Host_Notify
- described elsewhere).
-
- '9' System error
-
- '21' The OIA has been updated
-
- '22' The Presentation space has been updated
-
- '23' Both OIA and PS have been updated
-
-
- ΓòÉΓòÉΓòÉ 3.26. Query_Session_Status (Service 22) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇstatus = RexHLLAPI('Query_Session_Status', session_id)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns 18 bytes of session status information if the call is successful or ''
- if not. The 18 bytes are layed out as follows:
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Session_Status'.
-
- session_id The short name for the presentation space to query
-
- Returns:
-
- The session status data string is returned.
-
- '' Error. Check the value of the REXX variable HLLAPIRETC.
-
- status 18 bytes layed out as follows:
-
- o 1 byte session short name
- o 8 byte session long name in ASCII
- o 1 byte session type
-
- 'D' DFT mode session
- 'C' CUT mode session
- 'F' 5250 session
-
- o 1 byte binary number containing Control Program features
- o 2 byte binary number (stored in normal Intel reversed format) containing
- the number of rows in the session
- o 2 byte binary number (stored in normal Intel reversed format) containing
- the number of columns in the session
- o 2 byte binary number (stored in normal Intel reversed format) containing
- the host code page value.
-
- Note: For the last three fields (row, col, codepage) use c2d(reverse(x))
- after parsing them out of the string to get their decimal values
-
-
- ΓòÉΓòÉΓòÉ 3.27. Query_sessions (Service 10) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇsessiondata = RexHLLAPI('Query_sessions')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns 12 bytes for each configured session or '' if an error occurred.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Sessions'.
-
- Returns:
-
- The session status data string is returned.
-
- '' Error. Check the value of the REXX variable HLLAPIRETC.
-
- sessiondata 12 bytes for each session layed out as follows:
-
- o 1 byte session short name
- o 8 byte session long name in ASCII
- o 1 byte session type 'H'
- o 2 byte binary number (stored in standard Intel reversed format)
- containing the presentation space size for that session.
-
- Note: For the last field (PSsize) use c2d(reverse(x)) after parsing it
- out of the string to get the decimal value
-
- Example:
-
- The following example
-
- session_info = REXHLLAPI('Query_sessions')
- if length(session_info) < 13 then do
- say 'No Comm. Mgr. sessions are active, canceling execution.'
- exit
- end
- j = 1
- session.0 = 0
- do i = 13 by 12 for (length(session_info) / 12) - 1
- if i > length(session_info) then leave
- session.j = substr(session_info, i, 1)
- j = j + 1
- session.0 = session.0 + 1
- end
-
- will obtain all the short session id's and assign them to the stem variable
- session with session.0 containing the total number of available sessions.
-
-
- ΓòÉΓòÉΓòÉ 3.28. Query_system (Service 20) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇsysdata = RexHLLAPI('Query_system')ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns a 35 byte system configuration string or '' if an error occurred. The
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_System'.
-
- Returns:
-
- The system status data string is returned.
-
- '' Error. Check the value of the REXX variable HLLAPIRETC.
-
- sysdata 35 bytes layed out as follows:
-
- o 1 byte EHLLAPI version (ASCII)
- o 2 byte EHLLAPI level (ASCII)
- o 6 bytes MMDDYY EHLLAPI date (ASCII)
- o 3 bytes of not used data
- o 1 byte hardware base, 'Z' means look at system bytes later, 'U' means
- unable to determine, system bytes not valid
- o 1 byte of 'X'
- o 2 byte binary (stored in normal Intel reverse order) sequence number
- o 2 bytes (ASCII) of the control program number
- o 1 byte of '1'
- o 4 byte ASCII Extended Error code 1
- o 4 byte ASCII Extended Error code 2
- o 2 byte binary (stored in normal Intel reverse order) of the hardware
- base and sub-model types
-
- x'FC00' 6 mhz AT
- x'FC01' 8 mhz AT
- x'FC02' XT 286
- x'FC04' PS/2 Model 50
- x'FC05' PS/2 Model 60
- x'F800' PS/2 Model 80
- x'F801' PS/2 Model 70
-
- o 2 byte binary (stored in standard Intel reverse order) of the PC code
- page being used
- o 1 byte value identifying the display type being used
-
- 'C' CGA
- 'E' EGA
- 'V' VGA
- 'H' 8514
- 'A' 8503
- 'U' Unknown
-
- o 3 bytes reserved and unused
-
-
- ΓòÉΓòÉΓòÉ 3.29. Query_Window_Coords (Service 103) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇcoords = RexHLLAPI('Query_Window_Coords', session_id)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Returns the presentation space window coordinates.
-
- Prerequisite Calls:
-
- Connect_Window_Srvcs service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Query_Window_Coords'.
-
- session_id The short name for the presentation space to query
-
- Returns:
-
- The window coordinates data string is returned.
-
- '' Not connected to a session. Check the value of the REXX variable
- HLLAPIRETC.
-
- coords 17 bytes data containing the window coordinates data. Refer to the
- IBM Operation System/2 Extended Edition Version 1.2 EHLLAPI
- Programming Reference for more information on the layout of this
- data.
-
-
- ΓòÉΓòÉΓòÉ 3.30. Receive_File (Service 91) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Receive_File', stringΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Executes the 'RECEIVE.EXE' program as if it had been entered at the command
- line. The contents of string must be an acceptable syntax for the receive
- command.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Receive_File'.
-
- string Command line string per the syntax from the OS/2 Command
- Reference
-
- Returns:
-
- Returns the return code from the RECEIVE program. Refer to the IBM Operating
- System/2 Extended Edition Version 1.2 User's Guide Volume 2: Communications
- Manager and LAN Requester manual for more information on the possible return
- codes from this service.
-
- Example:
-
- ret = REXHLLAPI('Receive_File', 'c:\temp.pli temp.pli(xx) ascii crlf');
-
-
- ΓòÉΓòÉΓòÉ 3.31. Release (Service 12) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Release'ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Unlock the connected display session keyboard for user use.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Release'.
-
- Returns:
-
- The return code from the Release EHLLAPI service is returned.
-
- '0' Released
-
- '1' Not connected
-
- '9' System error occurred
-
- Note: If you disconnect while the keyboard is locked (via Reserve service)
- then a release will be done automatically.
-
-
- ΓòÉΓòÉΓòÉ 3.32. Reserve (Service 11) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Reserve'ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Locks the keyboard of the currently connected session until either a Release or
- a Disconnect_PS is done.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Reserve'.
-
- Returns:
-
- The return code from the Reserve EHLLAPI service is returned.
-
- '0' Keyboard now locked
-
- '1' Not connected to a session
-
- '5' Not locked, session in input inhibit state
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.33. Reset_System (Service 21) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Reset_System'ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Resets the system parameters (set with Set_session_parms service) to their
- default state.
-
- Note: Multiple processes may be using the same settings and ALL of them will
- be reset by this call. Use it with care.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Reset_System'.
-
- Returns:
-
- The return code from the Reset_System EHLLAPI service is returned.
-
- '0' Ok
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.34. Search_Field (Service 30) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpos = RexHLLAPI('Search_field', string, pos)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Search the currently connected session's presentation space for a field
- containing the string string, starting at position pos.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Search_field'.
-
- string The string to be search for.
-
- pos The start position within the presentation space for the search
- to begin.
-
- Returns:
-
- The position of the specified string is returned.
-
- '0' String not found or error
-
- > '0' Position within the presentation of the first location of string
-
-
- ΓòÉΓòÉΓòÉ 3.35. Search_PS (Service 6) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇpos = RexHLLAPI('Search_PS', string, pos)ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Search the currently connect session's presentation space for the string string
- starting at position pos. If SRCHALL has been specified in the
- Set_Session_parms (described later), then pos is not used.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Search_PS'.
-
- string The string to be search for.
-
- pos The start position within the presentation space for the search
- to begin.
-
- Returns:
-
- The position of the specified string is returned.
-
- '0' String not found or error
-
- > '0' Position within the presentation of the first location of string
-
-
- ΓòÉΓòÉΓòÉ 3.36. Send_File (Service 90) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Send_File', stringΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Executes the 'SEND.EXE' program as if it had been entered at the command line.
- The contents of string must be an acceptable syntax for the send command.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Send_File'.
-
- string Command line string per the syntax from the OS/2 Command
- Reference.
-
- Returns:
-
- Returns the return code from the SEND program. Refer to the IBM Operating
- System/2 Extended Edition Version 1.2 User's Guide Volume 2: Communications
- Manager and LAN Requester manual for more information on the possible return
- codes from this service.
-
- Example:
-
- ret = REXHLLAPI('Send_File', 'c:\temp.pli temp.pli(xx) ascii crlf');
-
-
- ΓòÉΓòÉΓòÉ 3.37. Sendkey (Service 3) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Sendkey', stringΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Send the keys as defined by the contents of string. Up to total of 255 keys may
- be sent at a single time.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Sendkey'.
-
- string The string of characters to be sent to the currently connected
- presentation space. This string can include the AID key
- mnemonics. Some of the more common AID key mnemonics are:
-
- '@E' Enter
- '@C' Clear
- '@n' PF1 through PF9 where n are the characters '1' through '9'. For a
- complete list of all AID key mnemonics refer to the IBM Operating
- System/2 Extended Edition Version 1.2 EHLLAPI Programming Reference
- manual.
-
- AID key mnemonics are case sensitive.
-
- Returns:
-
- The return code from the Sendkey EHLLAPI service is returned.
-
- '0' Keystrokes sent
-
- '1' Not connected to a session
-
- '2' Incorrect parameter
-
- '4' Session busy, all keystrokes not sent
-
- '5' Session is in input inhibit state or invalid mnemonic sent
-
- '9' System error occurred
-
- Example:
-
- The following example
-
- call REXHLLAPI 'Sendkey', '@E'
-
- will send the AID key Enter to the currently connected presentation space.
-
-
- ΓòÉΓòÉΓòÉ 3.38. Set_Cursor (Service 40) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Set_Cursor', posΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Positions the cursor at position pos in the currently connected session.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Set_Cursor'.
-
- pos The position in the currently connected presentation space in
- which to place the cursor.
-
- Returns:
-
- The return code from the Set_Cursor EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Not connected to a session
-
- '4' Session busy, all keystrokes not sent
-
- '7' pos in invalid for the current presentation space
-
- '9' System error occurred
-
-
- ΓòÉΓòÉΓòÉ 3.39. Set_Session_Parms (Service 9) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Set_Session_parms', stringΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Sets the current session parameters from string.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Set_Session_parms'.
-
- string The session parameter string. The values of the session
- parameters are ASCII strings and are as follows:
-
- 'ATTRB' on read_PS calls, pass back ONLY the attributes of
- the read string
- 'NOATTR'* pass back only the ASCII text in the read string
- 'EAB' pass back extended attributes AND text in the read
- string
- 'NOEAB'* pass back only text in the read string
- 'XLATE' translate EABs to PC attribute values in the read
- string
- 'NOXLATE'* do not translate EABs to PC attribute values in the
- read string
- 'CONPHYS' connect to the physical session, and if required,
- jump to it.
- 'CONLOG'* connect to the logical session requested, do not jump
- to it
- 'ESC=n' set the keystroke mnemonic character to n, default
- '@'
- 'SRCHALL'* Search the entire presentation space when doing
- searches
- 'SRCHFROM' search ONLY from the specified position when doing
- searches
- 'SRCHFRWD'* search from the beginning to the end of the PS
- (forward direction)
- 'SRCHBKWD' search from the end of the PS to the beginning
- (backward direction)
- 'AUTORESET'* will attempt to reset all inhibit conditions
- automatically on sendkey requests
- 'NORESET' no reset will be attempted automatically
- 'TWAIT'* WAIT will wait up to one minute for XCLOCK or XSYSTEM
- to clear before timing out
- 'LWAIT' WAIT will wait until XCLOCK or XSYSTEM clear before
- returning
-
- Note: This option should be used with EXTREME
- caution as control will NOT return until the host is
- available
- 'NWAIT' no wait, return status on any WAIT calls
- 'FPAUSE'* Full pause will take place regardless of any
- Start_host_notify in effect.
- 'IPAUSE' Interruptible pause. If a pause is in progress, and a
- host event occurs while Start_host_notify is in
- effect, this pause will end.
-
- Note: '*' denotes the default value for this
- setting.
-
- Please note that the session parameters STRLEN and
- STREOT are not included in the list above. These
- values cannot be changed through the REXHLAPI
- function package.
-
- More than one parameter may be set with a single
- service call. Seperate multiple parameters with one
- or more spaces.
-
- Returns:
-
- The return code from the Set_Session_parms EHLLAPI service is returned.
-
- '0' Session parameters set
-
- '2' Parameter string too long, or parameter error
-
- '9' System error
-
- Example:
-
- The following example
-
- call REXHLLAPI 'SetSession_Parms', 'NORESET IPAUSE'
-
- will set the specified session parameters.
-
-
- ΓòÉΓòÉΓòÉ 3.40. Start_Close_Intercept (Service 41) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Set_Close_Intercept', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Allows the application to intercept close requests when the user selects the
- close option from the presentation space's window.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Start_Close_Intercept'.
-
- session_id The short session name for the presentation space to begin
- trapping close requests.
-
- Returns:
-
- The return code from the Start_Close_Intercept EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Invalid session_id
-
- '2' Parameter string error
-
- '9' System error
-
- '10' Function not supported
-
-
- ΓòÉΓòÉΓòÉ 3.41. Start_Host_Notify (Service 23) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Start_Host_Notify', session_id, optionΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Starts trapping of host session screen update events. The session specified by
- session_id will be monitored for changes as requested by option.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Start_Host_Notify'.
-
- session_id The short session name for the presentation space to begin
- trapping screen update events.
-
- option Type of event trapping to begin. The valid values for option
- are as follows:
-
- 'P' Screen changes only
-
- 'O' OIA changes only
-
- 'B' Both OIA and screen changes
-
- Returns:
-
- The return code from the Start_Host_Notify EHLLAPI service is returned.
-
- '0' Ok
-
- '1' Invalid session_id
-
- '2' Parameter string error
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.42. Start_Key_Intercept (Service 50) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Start_Key_Intercept', session_id, optionΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- All keystrokes to the session specified by session_id will be buffered for
- processing by the Get_key service.
-
- Prerequisite Calls:
-
- None
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Start_Key_Intercept'.
-
- session_id The short session name for the presentation space to begin
- trapping keystrokes.
-
- option option can be either of the following
-
- 'D' AID keys only
- 'L' All keystroke
-
- Returns:
-
- The return code from the Start_Key_Intercept EHLLAPI service is returned.
-
- '0' Ok, monitoring started
-
- '1' Not connected to a session
-
- '2' Option was not correct
-
- '4' Session busy and cannot be connected
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.43. Stop_Close_Intercept (Service 43) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Stop_Close_Intercept', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Ends trapping of host session session_id close requests.
-
- Prerequisite Calls:
-
- Start_Close_Intercept service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Stop_Close_Intercept'.
-
- session_id The short session name for the presentation space to stop
- trapping close requests.
-
- Returns:
-
- The return code from the Stop_Close_Intercept EHLLAPI service is returned.
-
- '0' Ok, monitoring ended
-
- '1' Not connected to a session
-
- '2' Parameter error
-
- '8' No prior Start_Close_Intercept was done
-
- '9' System error
-
- '12' Session stopped
-
-
- ΓòÉΓòÉΓòÉ 3.44. Stop_Host_Notify (Service 25) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Stop_Host_Notify', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Ends trapping of host session session_id screen update events started by a
- preceding Start_Host_Notify service.
-
- Prerequisite Calls:
-
- Start_Host_Notify service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Stop_Host_Notify'.
-
- session_id The short session name for the presentation space to stop
- trapping screen and OIA updates.
-
- Returns:
-
- The return code from the Stop_Host_Notify EHLLAPI service is returned.
-
- '0' Ok, monitoring ended
-
- '1' Not connected to a session
-
- '8' No prior Start_Host_Notify was done
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.45. Stop_Key_Intercept (Service 53) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Stop_Key_Intercept', session_idΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Ends trapping of keystrokes for session_id started by a preceding
- Start_Keystroke_Interecpt service.
-
- Prerequisite Calls:
-
- Start_Key_Intercept service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are
- 'Stop_Key_intercept'.
-
- session_id The short session name for the presentation space to stop
- trapping keystrokes.
-
- Returns:
-
- The return code from the Stop_Key_Intercept EHLLAPI service is returned.
-
- '0' Ok, intercept ended
-
- '1' Not connected to a session
-
- '8' No prior Start_Keystroke_Intercept was done
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 3.46. Wait (Service 4) ΓòÉΓòÉΓòÉ
-
- Syntax:
-
-
- ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇCALL RexHLLAPI 'Wait'ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
-
- Purpose:
-
- Will check the status of the currently connected session. The setting (set by
- the Set_session_parms service) of TWAIT, NWAIT ot LWAIT affects how long this
- function will wait.
-
- Prerequisite Calls:
-
- Connect_PS service
-
- Arguments:
-
- argument 1 The string constant or a variable whose contents are 'Wait'.
-
- Returns:
-
- The return code from the Wait EHLLAPI service is returned.
-
- '0' Keyboard unlocked and ready for keystrokes
-
- '1' Not connected to a session
-
- '4' Wait timed out while still in XCLOCK or XSYSTEM state
-
- '5' Keyboard locked
-
- '9' System error
-
-
- ΓòÉΓòÉΓòÉ 4. Sample REXX Cmd using REXHLLAPI DLL Function Package ΓòÉΓòÉΓòÉ
-
- The REXTEST3.CMD supplied on this distribution disk performs the following
- functions:
-
- o Requests session information from Communications Manager.
- o Searches for an unused session.
- o Logs on to TSO.
- o Downloads a file to the c: drive.
- o Logs off TSO.
-
- Because all TSO/MVS/VTAM systems are different you may have to alter some of
- the search strings for your particular system. Be sure to set the USERID and
- PASSWORD variables to your TSO id and password.
-
-
- ΓòÉΓòÉΓòÉ 5. Support of REXHLAPI DLL Function Package ΓòÉΓòÉΓòÉ
-
- Support and enhancements for REXHLAPI will be performed by the author on an "as
- time permits" basis. If you have questions, comments or suggestions on
- improvements the author can be reached through the OS/2 Shareware BBS
- (703-385-4325) or at the address below:
-
- W. David Ashley
- 5 Timberline Dr.
- Trophy Club, Tx 76262
-