XtCallActionProc() XtCallActionProc()
Name
XtCallActionProc - explicitly invoke a named action procedure.
Synopsis
void XtCallActionProc(widget, action, event, params, num_params)
Widget widget;
String action;
XEvent *event;
String *params;
Cardinal num_params;
Inputs
widget Specifies the widget in which the action is to be invoked; must be of class Core or any subclass thereof.
action Specifies the name of the action routine.
event Specifies the event to pass to the action procedure.
params Specifies parameters to pass to the action procedure.
num_params
Specifies the number of elements in the params array.
Description
XtCallActionProc() looks up the action procedure named action and invokes it, passing widget, event, params, and num_params as arguments.
Before calling the named action, XtCallActionProc() invokes any action hook procedures that have been registered with XtAppAddActionHook().
It is the responsibility of the caller to ensure that the contents of the event, params, and num_params arguments are appropriate for the
specified action routine and, if necessary, that the specified widget is realized and/or sensitive. If the named action routine cannot be
found, XtCallActionProc() generates a warning message and returns.
When searching for the action procedure, XtCallActionProc() looks in the following places:
o The widget's class and all superclass action tables, in subclass-to-superclass order.
o The parent's class and all superclass action tables, in subclass-to-superclass order, then on up the ancestor tree.
o The action tables registered with XtAppAddActions() and XtAddActions() from the most recently added table to the oldest table.
See AlsoXtAppAddActionHook(1), XtRemoveActionHook(1),
XtActionHookProc(2).
Xt - Translations and Actions XtCallActionProc()
Check Out this Related Man Page
XtAppAddActionHook(3Xt) XT FUNCTIONS XtAppAddActionHook(3Xt)NAME
XtAppAddActionHook, XtRemoveActionHook - register an action hook procedure
SYNTAX
XtActionHookId XtAppAddActionHook(app_context, proc, client_data)
XtAppContext app_context;
XtActionHookProc proc;
XtPointer client_data;
void XtRemoveActionHook(id)
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 Release 6.6 XtAppAddActionHook(3Xt)
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