DOKK / manpages / debian 10 / libxt-dev / XtAppAddWorkProc.3.en
XtAppAddWorkProc(3) XT FUNCTIONS XtAppAddWorkProc(3)

XtAppAddWorkProc, XtRemoveWorkProc - Add and remove background processing procedures

XtWorkProcId XtAppAddWorkProc(XtAppContext app_context, XtWorkProc proc, XtPointer client_data);

void XtRemoveWorkProc(XtWorkProcId id);

Specifies the application context that identifies the application.
Specifies the argument that is to be passed to the specified procedure when it is called.
Specifies the procedure that is.
Specifies which work procedure to remove.

The XtAppAddWorkProc function adds the specified work procedure for the application identified by app_context.

The XtRemoveWorkProc function explicitly removes the specified background work procedure.

XtAppNextEvent(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface

libXt 1.1.5 X Version 11