lowlevel
AddKBInt()
Synopsis
APTR AddKBInt( APTR intRoutine, APTR intData );
Function
register a callback that is called whenever a keyboard input event occurs.
Inputs
intRoutine - the routine to invoke every vblank. This routine should be as short as possible to minimize its effect on overall system performance. intData - data passed to the routine in register A1. If more than one long word of data is required this should be a pointer to a structure that contains the required data.
AddTimerInt()
Synopsis
APTR AddTimerInt( APTR intRoutine, APTR intData );
Function
Add a callback function that should be executed every time the timer interrupt triggers. The timer will be allocated, but not configured or enabled - StartIntTimer() must be called to initalize the correct paramaters.
Inputs
intRoutine -- the callback function to invoke each vertical blank intData -- data passed to the callback function
Result
A handle used to manipulate the interrupt or NULL if the call failed.
Bugs
This function is unimplemented.
AddVBlankInt()
Synopsis
APTR AddVBlankInt( APTR intRoutine, APTR intData );
Function
Add a callback function that should be executed every vertical blank. If your program can exit without rebooting the machine, RemVBlankInt() has to be called prior to exiting. Only one interrupt routine may be added; always check the return value of this function in case some other program already has used this function.
Inputs
intRoutine -- the callback function to invoke each vertical blank intData -- data passed to the callback function
Result
A handle used to manipulate the interrupt or NULL if the call failed.
See also
ElapsedTime()
Synopsis
ULONG ElapsedTime( struct EClockVal * context );
Bugs
This function is unimplemented.
GetKey()
Synopsis
ULONG GetKey();
Function
returns the currently pressed 'qualifier' and 'key' combination.
Inputs
none
Result
0xFF if no key is pressed otherwise it returns the actual key in the low word, and qualifier in the high word -: 'qualifier' key equivalent LLKB_LSHIFT Left Shift LLKB_RSHIFT Rigt Shift LLKB_CAPSLOCK Caps Lock LLKB_CONTROL Control LLKB_LALT Left Alt LLKB_RALT Right Alt LLKB_LAMIGA Left Amiga LLKB_RAMIGA Right Amiga
GetLanguageSelection()
Synopsis
ULONG GetLanguageSelection();
QueryKeys()
Synopsis
VOID QueryKeys( struct KeyQuery * queryArray, UBYTE arraySize );
Bugs
This function is unimplemented.
ReadJoyPort()
Synopsis
ULONG ReadJoyPort( ULONG port );
Notes
This function isn't implemented on all platforms.
RemKBInt()
Synopsis
VOID RemKBInt( APTR intHandle );
Function
remove a keyboard interrupt previously registerd with addkbint.
RemTimerInt()
Synopsis
VOID RemTimerInt( APTR intHandle );
Bugs
This function is unimplemented.
RemVBlankInt()
Synopsis
VOID RemVBlankInt( APTR intHandle );
Function
Remove a vertical blank interrupt routine previously added by a call to AddVBlankInt().
Inputs
intHandle -- return value from AddVBlankInt(); may be NULL in which case this function is a no-op.
See also
SetJoyPortAttrsA()
Synopsis
BOOL SetJoyPortAttrsA( ULONG portNumber, struct TagItem * tagList ); BOOL SetJoyPortAttrs( ULONG portNumber, TAG tag, ... );
StartTimerInt()
Synopsis
VOID StartTimerInt( APTR intHandle, ULONG timeInterval, BOOL continuous );
Bugs
This function is unimplemented.
StopTimerInt()
Synopsis
VOID StopTimerInt( APTR intHandle );
Bugs
This function is unimplemented.
SystemControlA()
Synopsis
ULONG SystemControlA( struct TagItem * tags ); ULONG SystemControl( TAG tag, ... );
Bugs
This functions implementation is incomplete.