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- ----------------------------------------------------------------------
- LOCKER API DLL v1.00 Demo
-
- Thank you for Trying LOCKER API DLL v1.00 WINDOWS. Please
- notify us if you encounter any problems with LOCKER API.
-
- You are allowed to use this DEMO of LOCKER API for 30 days. After 30 days
- you should either purchase LOCKER API or STOP USING the DEMO.
-
- This demo is for EVALUATION PURPOSES ONLY
-
- You are allowed to give/distribute this demo to anyone ONLY IF it
- has not been modified,is given with this documentation,is not bundled
- with comercial software and is FREE.
-
- We are interested in what you think about LOCKER API
- what additional feature you would like to see, what you don't like about it,
- and what you do like about it. Depending on what feedback I
- receive, additional features may be added !
-
- ----------------------------------------------------------------------
- Description:
-
- LOCKER API controls allows a programmer to control the number of
- concurrent users that may access their windows program.
-
- When someone tries to access the program when maximum
- number is being used, the program is notified and it is up to
- the program as to what happens - whether the program waits for
- a free license, exits, justs notifies that the software license is
- being exceeded, etc.
- ----------------------------------------------------------------------
- Instructions for using LOCKER API DLL v1.00 DEMO
-
- FILES LIST
- readme.txt : This file
- LOCKAPIW.DLL: Metering DLL - This should go into your windows
- directory (or program directory)
- LOCKAPIW.LIB: Lib file for C programs
- LOCKAPIW.H: Include for C programs
- LOCKAPIW.DAT: Datafile used by DLL. Can be renamed.
-
- FUNCTIONS:
-
- LONG FAR PASCAL LOCKAPIW(WORD COMMAND,LPSTR LOCKERFILE,WORD MAX_LICENSE,DWORD FAR
- *LOCKERDATA);
-
- Description of Parameters:
- COMMAND - used to tell LOCKAPI what it should do
- LOCKERFILE - Complete path to where the LOCKAPIW.DAT file resides
- MAX_LICENSE -# of concurrent users to allow
- LOCKERDATA -storage for data the LOCKAPIW needs. Must not be modified or changed.
-
-
- WORD is the same as ainteger
- LPSTR is the same as a character far pointer
- DWORD is the same as a long
-
- LAN COMMANDS:
-
- This commands should be used for network version of your software. If
- the software is installed on a local drive - the user will be unable
- to run it unless share is loaded.
-
- Command: Value: Description
- --------------------------------------------------------------------
- LKAPI_INIT_LAN 0 This initializes a metering session on a
- network. Must be called before any other
- metering commands.
-
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_DEINIT_LAN 1 This deinitializes a metering session.
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_METER_LAN 2 This sees if any licenses are available
- and meters one if possible
-
- Returns 0 if ok, -1 if no licenses are
- available
-
- LKAPI_FREE_LAN 3 This frees up a metered license
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_STATUS_LAN 4 This returns the # of active licenses
-
- Returns # of active licenses if ok,
- -1 if an error occurred
-
- a RETURN value of -99 indicates that an invalid command was used
-
- SINGLE COMMANDS:
-
- This commands should be used for standalone versions of your software. If
- the software is installed on a local drive - the user will be able to
- run it normally. However if it is installed on a network - only one
- user will be able to run it.
-
- Command: Value: Description
- --------------------------------------------------------------------
-
- LKAPI_INIT_S 10 This initializes a metering session on a
- network. Must be called before any other
- metering commands.
-
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_DEINIT_S 11 This deinitializes a metering session.
-
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_METER_S 12 This sees if any licenses are available
- and meters one if possible
-
- Returns 0 if ok, -1 if no licenses are
- available
-
- LKAPI_FREE_S 13 This frees up a metered license
-
- Returns 0 if ok, -1 if an error occurred
-
- LKAPI_STATUS_S 14 This returns the # of active licenses.
-
- Returns 0 if the software is installed on a local drive and
- share is not loaded or the # of active
- licenses, -1 if an error occured.
-
- a RETURN value of -99 indicates that an invalid command was used
-
-
- LANGUAGE SPECIFIC:
- ----------------------------------------------------------------------
- C :
- You should include the header file:
- "lockapiw.h"
-
- and have either a global or a static variable for the LOCKERDATA.
-
- The LOCKAPIW.LIB either needs to be linked in or you can add an
- IMPORTS statement in your DEF file
-
- IMPORTS LOCKERAPIW=LOCKERAPIW.LOCKERAPIW
-
- Example calls:
-
- LOCKAPIW(LKAPI_INIT_LAN,tempstr,1, &LOCKKEY);
- if (-1L==LOCKAPIW(LKAPI_METER_LAN,tempstr,1, &LOCKKEY))
- {
- // no free licenses are available
-
- }
-
-
- ----------------------------------------------------------------------
- Visual Basic
-
- to GLOBAL.BAS add the following lines:
-
- Declare Function LOCKAPIW Lib "LOCKAPIW.DLL" (ByVal lkcom%, ByVal lkfile$, ByVal lkcount%, LKFLAG&) As Integer
- Global LKFLAG As Long
-
-
- to initialize LOCKAPI use something like the following:
-
- LKFLAG& = 0
- LKstr$ = "D:\LOCKAPIW\TEST.DAT"
- status = LOCKAPIW(10, LKstr$, 2, LKFLAG&)
-
-
- to meter a license:
-
- status = LOCKAPIW(12, LKstr$, 2, LKFLAG&)
- ----------------------------------------------------------------------
-
- Other Languages:
-
- Lookup the instructions on how to access functions in DLLs
-
- (and then let us know so we can include the information in future
- releases)
- ----------------------------------------------------------------------
-
- COMMON ERRORS:
-
- You get an error initializing or metering. Most likely the problem is
- that the filename you are passing is invalid, or is being passed
- wrong. The path given for the LOCKERFILE (LOCKAPIW.DAT) must be a
- valid DOS path - not a network specific path.
-
- FOR example:
-
- F:\METER\LOCKAPI.DAT is will work - where F: is a mapped network
- drive
-
- SERVER1/SYS:\METER\LOCKAPI.DAT will NOT work (even though NOVELL
- under stands it)
-
-
- USE IDEAS:
-
- You can store the license limit in a file and read it in before
- calling LOCKAPIW. This way you can easily upgrade a customers site
- for more licenses by just sending out a new file. It would be
- best to encyrpt the data (so they can't hack the license limits)
-
-
- ----------------------------------------------------------------------
- The following licenses for LOCKER API DLL v1.00 are available:
-
- LOCKER API DLL v1.00: USD $ 245 + $5 royalty for each single license of
- software sold (S/H included) for the US & CANADA
-
- In Massachusetts please add 5% Sales Tax.
-
- We also offer Royalty free Application Licenses. Please contact us for
- a quote.
-
-
- We accept CHECKS, MONEY ORDERS, and Company PO's (call for approval)
-
- If you want more information on LOCKER API DLL or if you would like to purchase
- LOCKER API DLL v1.00 we can be contacted at:
-
- HAMPSHIRE SOFTWARE
- Box 216
- 300 Washington Street
- North Pembroke, MA 02358
-
- (800)-NET-SOFT
-
- Compuserve Address: 72607, 3042
-
- Dealer / Reseller inquires welcomed.
-
-
- And NOW for the usual disclaimers:
-
- NO OTHER WARRANTIES. HAMPSHIRE SOFTWARE disclaims all other warranties, either express
- or implied, including but not limited to implied warranties of mechantability and
- fitness for a particular purpose, with respect to the software, the accompanying
- written materials, and any accompanying hardware. This limited warranty gives
- you specific legal rights. You may have others, which vary from state to state.
-
- NO LIABILITY FOR CONSEQUENTIAL DAMAGES. In no event shall HAMPSHIRE SOFTWARE
- or its suppliers be liable for any damages whatsoever caused by the use of or
- inability to use this HAMPSHIRE SOFTWARE product. Because some states do not
- allow the exclusion or limitation of liability for consequential of incidental
- damages, the above limitation may not apply to you.
-
- ----------------------------------------------------------------------
-
-