Attempt to Lock Layer structure by ROM(gfx lib) code
Source position: agraphics.pas line 2271
function AttemptLockLayerRom( |
layer: pLayer |
):LongBool; |
True or False depending on whether the Layer was successfully locked by the caller.
Query the current state of the lock on this Layer. If it is already locked then return False, could not lock. If the Layer was not locked then lock it and return True. This call does not destroy any registers. This call nests so that callers in this chain will not lock themselves out.
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Lock Layer structure by ROM(gfx lib) code. |
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Unlock Layer structure by ROM(gfx lib) code. |