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XtAppAddActionHook(3Xt) XtAppAddActionHook(3Xt) NAME XtAppAddActionHook, XtRemoveActionHook - register an action hook proce- dure SYNOPSIS XtActionHookId XtAppAddActionHook(app_context, proc, client_data) XtAppContext app_context; XtActionHookProc proc; XtPointer client_data; void XtRemoveActionHook(idFP) XtActionHookId id; ARGUMENTS Specifies the application context. Specifies the action hook proce- dure. Specifies the application-specific data to be passed to the ac- tion hook. DESCRIPTION XtAppAddActionHook adds the specified procedure to the front of a list maintained in the application context. In the future, when an action routine is about to be invoked for any widget in this application con- text, either through the translation manager or via XtCallActionProc, the action hook procedures will be called in reverse order of registra- tion just prior to invoking the action routine. Action hook procedures are removed automatically and the XtActionHookId is destroyed when the application context in which they were added is destroyed. XtRemoveActionHook removes the specified action hook procedure from the list in which it was registered. SEE ALSO X Toolkit Intrinsics -- C Language Interface Xlib -- C Language X Interface XtAppAddActionHook(3Xt)