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Man Pages


Manual Reference Pages  -  XMUPDATEDISPLAY (3)

NAME

XmUpdateDisplay — A function that processes all pending exposure events immediately

CONTENTS

SYNOPSIS

void XmUpdateDisplay (widget)
        Widget  widget;
(void)

DESCRIPTION

XmUpdateDisplay provides the application with a mechanism for forcing all pending exposure events to be removed from the input queue and processed immediately. When a user selects a button within a menu pane, the menu panes are unposted and then any activation callbacks registered by the application are invoked. If one of the callbacks performs a time-consuming action, the portion of the application window that was covered by the menu panes will not have been redrawn; normal exposure processing does not occur until all of the callbacks have been invoked. If the application writer suspects that a callback will take a long time, then the callback may choose to invoke XmUpdateDisplay before starting its time-consuming operation. This function is also useful any time a transient window, such as a dialog box, is unposted; callbacks are invoked before normal exposure processing can occur.
widget Specifies any widget or gadget.

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