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List:       freedesktop-xorg
Subject:    Re: How to get each monitor's geometry with xlib when there is more =?iso-8859-1?Q?than_one_screen_=
From:       Thomas_Lübking <thomas.luebking () gmail ! com>
Date:       2015-09-29 11:08:15
Message-ID: 5442d513-430f-43dd-a591-7ef0b997b5da () gmail ! com
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On Dienstag, 29. September 2015 10:56:33 CEST, Hacksign wrote:
> My monitor configuration is listed at the end of this email post.
> My problem:
> can not get each monitor's width & height widh xlib.
> here is my code:


"monitor" = "output" != "screen" in X11 - nevertheless you're looking for
XRRScreenSize *XRRSizes(Display *dpy,
    int screen, int *nsizes);

Pass it the values you have and a reference to "int nsizes" and get back a list of
typedef struct {
    int    width, height;
    int    mwidth, mheight;
} XRRScreenSize;

don't forget to free that.

See http://linux.die.net/man/3/xrrscreenconfig

Notice that this only works as expected w/ the xrandr extension available. Otherwise \
you'll (afair) always have one screen with the combined size of the root window.

Cheers,
Thomas
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