[Xcb] xcb_get_property use
Michele Comignano
comick at autistici.org
Mon Oct 26 06:53:50 PDT 2009
I'm trying to use the xcb_get_property binding to get the root tile pixmap XID
in the following manner:
d->conn is an xcb_connection_t and d->screen is a xcb_screen_t *
int i;
xcb_get_property_cookie_t cookie;
xcb_get_property_reply_t * reply;
xcb_atom_t atom;
const char *props[] = {"_XROOTPMAP_ID", "_XSETROOT_ID"};
xcb_pixmap_t root_tile_pixmap = XCB_NONE;
for (i = 0; i < 2; i++) {
atom = xcb_atom_get(d->conn, props[i]);
cookie = xcb_get_property(d->conn,
0, d->screen->root,
atom,
0L, // is it good ?? i've seen AnyPropertyType in the Xlib
says 0L
0, sizeof (xcb_pixmap_t)
);
reply = xcb_get_property_reply(d->conn, cookie, NULL);
if (reply) { // Is this a good way to check for failure?
memcpy(&_this.root_tile_pixmap, reply->pad0, sizeof
(xcb_pixmap_t));//is pad0 the right place where reply data are stored
}
free(reply);
}
if (root_tile_pixmap == XCB_NONE) {
// Error
}else{
// do stuff the the XID
}
My reply is always zero lenght.
Thanks in advance.
--
Michele Comignano (comick)
Jabber: comick at autistici.org
Web: http://comick.playlinux.net
More information about the Xcb
mailing list