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

XtAppLock, XtAppUnlock - lock and unlock application context

void XtAppLock(XtAppContext app_context);

void XtAppUnlock(XtAppContext app_context);

Specifies the application context.

XtAppLock locks the application context including all its related displays and widgets.

XtAppUnlock unlocks the application context.

X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface

libXt 1.1.5 X Version 11