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AttemptLockLayerRom.md

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NAME

AttemptLockLayerRom -- Attempt to Lock Layer structure by rom(gfx lib) code

SYNOPSIS

    gotit = AttemptLockLayerRom( layer )
     d0                           a5

    BOOL AttempLockLayerRom( struct Layer * );

Links: Layer

FUNCTION

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.

INPUTS

layer - pointer to Layer structure

RESULT gotit - TRUE or FALSE depending on whether the Layer was successfully locked by the caller.

SEE ALSO

LockLayerRom UnlockLayerRom