A Text function that deletes the primary selection
#include <Xm/Text.h> Boolean XmTextRemove Widget widget
XmTextRemove deletes the primary selected text. If there is a selection, this routine also calls the widget's XmNvalueChangedCallback and verification callbacks, either XmNmodifyVerifyCallback or XmNmodifyVerifyCallbackWcs, or both. If both verification callback lists are registered, the procedures of the XmNmodifyVerifyCallback list are executed first and the resulting data is passed to the XmNmodifyVerifyCallbackWcs callbacks. This function may also call the XmNmotionVerifyCallback callback.
For a complete definition of Text and its associated resources, see XmText (3).
This function returns False if the primary selection is NULL or if the widget does not own the primary selection. Otherwise, it returns True.