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.

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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()

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

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

Examples:

See PtAddCallback().

Classification:

Photon

See also:

PtAddCallback(), PtAddCallbacks(), PtRemoveCallbacks(), PtRemoveEventHandler(), PtRemoveEventHandlers(), PtRemoveFilterCallback(), PtRemoveFilterCallbacks(), PtRemoveHotkeyHandler()

PtCallbackInfo_t in the Photon Widget Reference

"Callbacks" in the Managing Widgets in Application Code chapter of the Photon Programmer's Guide