This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

PdUnlockOffscreen()

Unlock an offscreen context

Synopsis:

int PdUnlockOffscreen( PdOffscreenContext_t *osc );

Arguments:

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

Library:

ph

Description:

This function unlocks the offscreen context, osc. You can lock the offscreen context by calling PdLockOffscreen() after calling PdCreateOffscreenLock() to create the lock.

Returns:

EOK: The offscreen context was successfully unlocked.; Pg_OSC_ALREADY_UNLOCKED; The context wasn't locked to begin with (i.e. the semaphore count wasn't increased).
Pg_OSC_LOCK_INVALID: The lock is invalid.
Pg_OSC_NOT_LOCKED: The context wasn't locked.

Classification:

Photon

Safety:
Interrupt handler	No
Signal handler	No
Thread	No