save_argv, save_argc); /* notice the order of these args! */
}
This program registers the WM_SAVE_YOURSELF protocol using XmAddWMProtocols() before it specifies the
callback routine. If the session manager sends a WM_SAVE_YOURSELF message to this program then the
save_state() function is called, which causes the program to save its internal state using the function
SaveStateAndReturnFileName(). This is a hypothetical function that you would write yourself to save the
state of the program and return the filename that contains the state information. The callback routine also adds the
−restart flag and the new filename to the saved argv from the beginning of the program. The function
XSetCommand() is used to set the WM_COMMAND property on the window associated with the top−level shell,
which fulfills the program's obligation to the session manager.
For more information about session managers and the save−yourself communication protocol, see Volume Zero, X
Protocol Reference Manual. For more details on XSetCommand() and other Xlib−based functions that set and get
window manager properties on top−level windows, ...
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