XtAppAddActionHook(3) XT FUNCTIONS XtAppAddActionHook(3)

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

X Version 11 libXt 1.1.5 XtAppAddActionHook(3)