Attachment 4034 Details for Bug 5272 – The program

The program

damage-bug-1.c (text/plain), 1.38 KB, created by Søren Sandmann Pedersen on 2005-12-08 07:26:32 UTC

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Creator: Søren Sandmann Pedersen

Created: 2005-12-08 07:26:32 UTC

Size: 1.38 KB

patch

obsolete

>#include <X11/Xlib.h>
>#include <X11/extensions/Xcomposite.h>
>#include <stdlib.h>
>#include <stdio.h>
>
>/*
> * Thie program demonstrates that windows that have had
> * XcompositeRedirectSubwindows() called on them will
> * not have their background drawn at all.
> *
> * This is correct according to the composite spec, but I don't see any
> * good (API) reason for this behavior. The right
> * behavior in my opinion is to only have the background
> * painting turned off it is moving a redirected window that
> * causes the expose/paintbackground. Ie,. basically when the
> * expose is real, it should be processed.
> *
> * Think of an application for example that has a manual redirect
> * of the subwindows of its own toplevel window.
> */
>static int comp_event;
>static int comp_error;
>
>static void
>disaster (const char *what)
>{
>    fprintf (stderr, "Error: %s\n", what);
>    exit (0);
>}
>
>int
>main (int argc, char **argv)
>{
>    Display *dpy;
>    Window main_window;
>
>    dpy = XOpenDisplay (NULL);
>    if (!XCompositeQueryExtension (dpy, &comp_event, &comp_error))
>	disaster ("No composite extension found\n");
>
>    /* Create main window */
>    
>    main_window = XCreateSimpleWindow (dpy, XDefaultRootWindow (dpy),
>				       100, 100, 600, 400, 0, 0, 0xffffffff);
>    XMapWindow (dpy, main_window);
>
>    XCompositeRedirectSubwindows (dpy,
>				  main_window,
>				  CompositeRedirectManual);
>
>    XFlush (dpy);
>
>    sleep (100);
>}

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Attachments on bug 5272: 4034

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