Function UpdateFKB

src/drivers/Qt/input.cpp:1872–1916

* Update the status of the Family KeyBoard. */

 * Update the status of the Family KeyBoard.
 */
static void UpdateFKB(void)
{
	int x;
	char leftShiftDown, vkeyDown;
	//static char lp[0x48];

	vkeyDown = getFamilyKeyboardVirtualKey(50);

	leftShiftDown = DTestButton(&fkbmap[50], true) || vkeyDown;

	for (x = 0; x < FAMILYKEYBOARD_NUM_BUTTONS; x++)
	{
		if ( leftShiftDown && (x == 62) )
		{	// Family BASIC appears to not like when both shift keys are pressed at the
			// same time. Since Qt key events do not differentiate between left and right
			// shift this GUI sets both left and right shift scancodes when a shift modifier
			// is detected. So to avoid having the FKB see both shift keys pressed at once,
			// always skip the right shift key here if the left key is already detected down.
			fkbkeys[x] = 0;
			continue;
		}

		vkeyDown = getFamilyKeyboardVirtualKey(x);

		if (DTestButton(&fkbmap[x], true) || vkeyDown)
		{
			fkbkeys[x] = 1;

			//if ( !lp[x] )
			//{
			//	printf("FKB Key %i Down\n", x );
			//}
		}
		else
		{
			fkbkeys[x] = 0;

			//if ( lp[x] )
			//{
			//	printf("FKB Key %i Up\n", x );
			//}
		}
		//lp[x] = fkbkeys[x];
	}
}

const uint8_t *getFamilyKeyboardState(void)
{