NAME
XtAppAddActionHook, XtRemoveActionHook - register an action hook
procedure
SYNTAX
XtActionHookId XtAppAddActionHook(XtAppContext app_context,
XtActionHookProc proc, XtPointer client_data);
void XtRemoveActionHook(XtActionHookId id);
ARGUMENTS
app_context
Specifies the application context.
proc Specifies the action hook procedure.
num_args Specifies the application-specific data to be passed to the
action 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
context, either through the translation manager or via
XtCallActionProc, the action hohok procedures will be called in reverse
order of registration jut prior to invoking the action routine.
Action hook procedures are removed automatically and the XtActionHookId
s 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