DtclTkScreenInfo - Returns information about screens in a multi-desktop
Returns information about screens in a multi-desktop configuration.
The X11 XInerama extension allows multiple screened to be considered
as one. This generally works well, but sometimes we need to place
windows sensibly in just one of these displays. Currently (2007, version
- 4.14) Tcl/Tk provides no way of doing this through it may be added
to the "winfo" command at some point. This command provides an
interface to XInerama. If XInerama is not supported, then we consider
that we just have one display.
If the window argument is not supplied, then returns 0/1 indicating
if the XInerama is supported on this OS.
The window argument is used to find the X11 display you are interested
in. If supplied with no screen number, then returns the number
of screens as known by Xinerama. If supplied with a screen
number, returns a list being the x origin, y origin, x size and
y size of the specified screen.
DtclTkScreenInfo [window [num]]
>||window||string||The name of a window on the display in question.
>||num||integer||A Xinerima screen number.
DTCL manual. Tcl/Tk winfo command, Tcl/Tk wm command.
X11 XInerama extension documentation.
Tony Farrell, AAO
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