6.2.5. Check Trigger key is pressing
Function Description:
This function is used to check if left or right trigger key is pressed or not.
Function call:
BOOL TriggerKeyStatus( int key);
Parameter(Input) |
|
key: int: LEFT_TRIGGER_KEY | : left trigger key |
RIGHT_TRIGGER_KEY | : right trigger key. |
Return code: |
|
TRUE = trigger is pressed. |
|
FALSE = trigger is released. |
|
Example: |
|
#define kKeybdTriggerEventName | TEXT("KeybdTriggerChangeEvent") |
#define kKeybdAlphaKeyEventName | TEXT("KBDAlphaKeyChangeEvent") |
#define LEFT_TRIGGER_KEY 1 |
|
#define RIGHT_TRIGGER_KEY 2 |
|
gKeyEvents[0] = CreateEvent(NULL, TRUE, FALSE, kKeybdTriggerEventName); gKeyEvents[1] = CreateEvent(NULL, TRUE, FALSE, kKeybdAlphaKeyEventName);
while (1)
{
WaitForMultipleObjects(2, gKeyEvents, FALSE, INFINITE);
TriggerKeyStatus(LEFT_TRIGGER_KEY); TriggerKeyStatus(RIGHT_TRIGGER_KEY);
}
6.3.LED related function
Function Description:
There are two LEDs above the screen of PA500, red and green LEDs. Only the green LED can be controlled by programmer.
Function call:
void GoodReadLEDOn(BOOL fON)
Parameter(Input) |
|
fON: BOOL: | TRUE = turn on LED. |
| FALSE = turn off green LED. |
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