On Mon, Nov 15, 2010 at 08:26:09AM -0800, Greg Ercolano wrote: > Matthias Melcher wrote: > > pass[ing] the address (or ID) of an X-window [seems] suspicious. > > FWIW, while solving an X related STR last night, > I noticed 'xwininfo -id' takes hexidecimal ID numbers > on its command line, replete with the "0x" prefix and everything. > > So I get the impression passing around ID's in hex might > be considered "normal behavior" for processes to tell each > other about other windows. > > I imagine it's the one way guaranteed to uniquely identify > a window on an X server, since "window names" aren't necessarily > unique. the Window id is an int (hex or decimal). It's the one an only true reference to a window. >
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