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UNLOCKBUFFER |
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Syntax INT = UNLOCKBUFFER(OPT buffer as POINTER) Description Unlocks a previously locked buffer. Parameters buffer - Optional. Can be either BACKBUFFER (default) or FRONTBUFFER Return value Returns the current lock count if the buffer could be locked or -1 on error. Remarks Locking a buffer makes the video card memory directly accessible by your program for direct buffer manipulation. All drawing operations lock the buffer before performing any tasks on the buffer. Every call to LOCKBUFFER must be matched with a call to UNLOCKBUFFER. The buffer must be unlocked before it can be flipped, blitted to, or drawn on with the GDI. See Also: LOCKBUFFER Example usage LOCKBUFFER |