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PdIsOffscreenLocked()

Determine whether or not an offscreen context is locked

Synopsis:

int PdIsOffscreenLocked(
       PdOffscreenContext_t *osc );

Arguments:

osc

A pointer to the offscreen context, as returned by PdCreateOffscreenContext(), that you want to check.

Library:

ph

Description:

This function tests to see if the given offscreen context is currently locked.

Returns:

One of:

• Pg_OSC_LOCKED
• Pg_OSC_LOCK_INVALID
• Pg_OSC_NOT_LOCKED

Classification:

Photon

Safety:
Interrupt handler	No
Signal handler	No
Thread	No

See also:

PdCreateOffscreenLock(), PdDestroyOffscreenLock(), PdGetOffscreenContextPtr(), PdLockOffscreen(), PdUnlockOffscreen()

"Offscreen locks" in the Raw Drawing and Animation chapter of the Photon Programmer's Guide

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