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XmtAddDeleteCallback(3) FreeBSD Library Functions Manual XmtAddDeleteCallback(3)

XmtAddDeleteCallback(), XmtAddSaveYourselfCallback() - register callbacks for session management protocols.

#include <Xmt/Xmt.h>
void XmtAddDeleteCallback(Widget shell, int response, XtCallbackProc proc, XtPointer data)
void XmtAddSaveYourselfCallback(Widget shell, XtCallbackProc proc, XtPointer data)

The shell widget that is to have the callback registered. May be any shell for XmtAddDelete Callback(). Must be a toplevel ApplicationShell for XmtAddSaveYourselfCallback().
A value to be set on the XmNdeleteResponse resource, for XmtAddDeleteCallback() only.
The callback procedure to register. This is a nor mal Xt callback procedure. When invoked, it will be passed shell as its first argument and data as its second argument. Its third argument will be unused.
An arbitrary untyped value to pass to the callback procedure as its second, client_data argument.

XmtAddDeleteCallback() sets the Motif VendorShell XmNdelete Response resource of shell to response, and calls XmAdd WMProtocolCallback() to specify that the callback proc should be invoked when that shell receives a WM_DELETE_WINDOW message from the window manager or the session manager. The value of response specifies what actions the shell should perform automatically in response to this message, and the procedure proc can perform any other, custom actions.
XmtAddSaveYourselfCallback() registers a procedure proc to be invoked when the specified shell receives a WM_SAVE_YOURSELF message from the session manager. In order to comply with the WM_SAVE_YOURSELF protocol, there must be no more than one callback registered per application, and the callback must set the WM_COMMAND property of the shell window before returning. Note that this function does not have a response/ argument, since there is no equivalent to the XmNdelete Response resource for the WM_SAVE_YOURSELF session management protocol. Also note that this protocol is replaced with much more sophisticated session management facilities in X11R6.

Chapter 16, Working with the Session Manager, Inter-client Communications Conventions Manual, VendorShell, XmAddWMProtocolCallback()
Motif Tools Xmt

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