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- TABLE OF CONTENTS
-
- gameport.device/GPD_ASKCTYPE
- gameport.device/GPD_ASKTRIGGER
- gameport.device/GPD_READEVENT
- gameport.device/GPD_SETCTYPE
- gameport.device/GPD_SETTRIGGER
- gameport.device/GPD_ASKCTYPE gameport.device/GPD_ASKCTYPE
-
- NAME
- GPD_ASKCTYPE -- Acquire the current game port controller type
-
- FUNCTION
- This command identifies the type of controller at the game
- port, so that the signals at the port may be properly
- interpreted. The controller type has been set by a previous
- SetCType.
-
- This command always executes immediately.
-
- IO REQUEST
- io_Message mn_ReplyPort set if quick I/O is not possible
- io_Device preset by the call to OpenDevice
- io_Unit preset by the call to OpenDevice
- io_Command GPD_ASKCTYPE
- io_Flags IOB_QUICK set if quick I/O is possible
- io_Length at least 1
- io_Data the address of the byte variable for the
- result
-
- gameport.device/GPD_ASKTRIGGER gameport.device/GPD_ASKTRIGGER
-
- NAME
- GPD_ASKTRIGGER -- Inquire the conditions for a game port report
-
- FUNCTION
- This command inquires what conditions must be met by a game
- port unit before a pending Read request will be satisfied.
- These conditions, called triggers, are independent -- that
- any one occurs is sufficient to queue a game port report to
- the Read queue. These conditions are set by SetTrigger.
-
- This command always executes immediately.
-
- IO REQUEST
- io_Message mn_ReplyPort set if quick I/O is not possible
- io_Device preset by the call to OpenDevice
- io_Unit preset by the call to OpenDevice
- io_Command GPD_ASKTRIGGER
- io_Flags IOB_QUICK set if quick I/O is possible
- io_Length sizeof(gamePortTrigger)
- io_Data a structure of type GamePortTrigger, which
- has the following elements
- gpt_Keys -
- GPTB_DOWNKEYS set if button down transitions
- trigger a report, and GPTB_UPKEYS set if button up
- transitions trigger a report
- gpt_Timeout -
- a time which, if exceeded, triggers a report;
- measured in vertical blank units (60/sec)
- gpt_XDelta -
- a distance in x which, if exceeded, triggers a
- report
- gpt_YDelta -
- a distance in x which, if exceeded, triggers a
- report
-
- gameport.device/GPD_READEVENT gameport.device/GPD_READEVENT
-
- NAME
- GPD_READEVENT -- Return the next game port event.
-
- FUNCTION
- Read game port events from the game port and put them in the
- data area of the iORequest. If there are no pending game port
- events, this command will not be satisfied, but if there are
- some events, but not as many as can fill IO_LENGTH, the
- request will be satisfied with those currently available.
-
- IO REQUEST
- io_Message mn_ReplyPort set if quick I/O is not possible
- io_Device preset by the call to OpenDevice
- io_Unit preset by the call to OpenDevice
- io_Command GPD_READEVENT
- io_Flags IOB_QUICK set if quick I/O is possible
- io_Length the size of the io_Data area in bytes: there
- are sizeof(inputEvent) bytes per input event.
- io_Data a buffer area to fill with input events. The
- fields of the input event are:
- ie_NextEvent
- links the events returned
- ie_Class
- is IECLASS_RAWMOUSE
- ie_SubClass
- is 0 for the left, 1 for the right game port
- ie_Code
- contains any gameport button reports. No
- report is indicated by the value 0xff.
- ie_Qualifier
- only the relative and button bits are set
- ie_X, ie_Y
- the x and y values for this report, in either
- relative or absolute device dependent units.
- ie_TimeStamp
- the delta time since the last report, given
- not as a standard timestamp, but as the frame
- count in the TV_SECS field.
-
- RESULTS
- This function sets the error field in the iORequest, and fills
- the iORequest with the next game port events (but not partial
- events).
-
- SEE ALSO
- gameport.device/SetCType, gameport.device/SetTrigger
-
- gameport.device/GPD_SETCTYPE gameport.device/GPD_SETCTYPE
-
- NAME
- GPD_SETCTYPE -- Set the current game port controller type
-
- FUNCTION
- This command sets the type of device at the game port, so that
- the signals at the port may be properly interpreted. The port
- can also be turned off, so that no reports are generated.
-
- This command always executes immediately.
-
- IO REQUEST
- io_Message mn_ReplyPort set if quick I/O is not possible
- io_Device preset by the call to OpenDevice
- io_Unit preset by the call to OpenDevice
- io_Command GPD_SETCTYPE
- io_Flags IOB_QUICK set if quick I/O is possible
- io_Length 1
- io_Data the address of the byte variable describing
- the controller type, as per the equates in
- the gameport include file
-
- gameport.device/GPD_SETTRIGGER gameport.device/GPD_SETTRIGGER
-
- NAME
- GPD_SETTRIGGER -- Set the conditions for a game port report
-
- FUNCTION
- This command sets what conditions must be met by a game
- port unit before a pending Read request will be satisfied.
- These conditions, called triggers, are independent -- that
- any one occurs is sufficient to queue a game port report to
- the Read queue. These conditions are inquired with
- AskTrigger.
-
- This command always executes immediately.
-
- IO REQUEST
- io_Message mn_ReplyPort set if quick I/O is not possible
- io_Device preset by the call to OpenDevice
- io_Unit preset by the call to OpenDevice
- io_Command GPD_SETTRIGGER
- io_Flags IOB_QUICK set if quick I/O is possible
- io_Length sizeof(gamePortTrigger)
- io_Data a structure of type GamePortTrigger, which
- has the following elements
- gpt_Keys -
- GPTB_DOWNKEYS set if button down transitions
- trigger a report, and GPTB_UPKEYS set if button up
- transitions trigger a report
- gpt_Timeout -
- a time which, if exceeded, triggers a report;
- measured in vertical blank units (60/sec)
- gpt_XDelta -
- a distance in x which, if exceeded, triggers a
- report
- gpt_YDelta -
- a distance in x which, if exceeded, triggers a
- report
-
-