VEraseDialogOnOffCommand - erases the switch in the button window that
turns the dialog window on and off.
VEraseDialogOnOffCommand erases the switch in the button window that
turns the dialog window on and off. VEraseDialogOnOffCommand deletes all the
associated data structures and frees the memory.
0 - work successfully.
211 - the dialog on/off switch is NULL.
The dialog window will be turned on if it is off.
VCreateColormap should be called earlier,else VEraseDialogOnOffCommand
prints an error message to the standard error stream, produces a core
dump file and exits from the current process.