PtRemoveCallback()

Remove a single callback entry from a callback list

Synopsis:

void PtRemoveCallback( PtWidget_t *widget,
                       unsigned long callback_type,
                       PtCallbackF_t *callback,
                       void *data );

Library:

ph

Description:

This function removes the first callback entry that matches callback and data. It removes the entry from the callback_type callback list that belongs to widget.

Some types of callback resources have special routines that you should use instead of this one:

Pt_CB_FILTER: PtRemoveFilterCallback() or PtRemoveFilterCallbacks()
Pt_CB_HOTKEY: PtRemoveHotkeyHandler()
Pt_CB_RAW: PtRemoveEventHandler() or PtRemoveEventHandlers()

The callback argument points to a function that takes this form:

int (*callback)( PtWidget_t *, void *, 
               PtCallbackInfo_t *)

Examples:

See PtAddCallback().

Classification:

Photon

Safety:
Interrupt handler	No
Signal handler	No
Thread	No