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/*********************************************************************************
*                             recordMyDesktop                                    *
**********************************************************************************
*                                                                                *
*             Copyright (C) 2006  John Varouhakis                                *
*                                                                                *
*                                                                                *
*    This program is free software; you can redistribute it and/or modify        *
*    it under the terms of the GNU General Public License as published by        *
*    the Free Software Foundation; either version 2 of the License, or           *
*    (at your option) any later version.                                         *
*                                                                                *
*    This program is distributed in the hope that it will be useful,             *
*    but WITHOUT ANY WARRANTY; without even the implied warranty of              *
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               *
*    GNU General Public License for more details.                                *
*                                                                                *
*    You should have received a copy of the GNU General Public License           *
*    along with this program; if not, write to the Free Software                 *
*    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA   *
*                                                                                *
*                                                                                *
*                                                                                *
*    For further information contact me at johnvarouhakis@gmail.com              *
**********************************************************************************/


#include <recordmydesktop.h>

char *rmdWMCheck(Display *dpy,Window root){

    Window  *wm_child=NULL;
    Atom    nwm_atom,
            utf8_string,
            wm_name_atom,
            rt;
    unsigned long   nbytes,
                    nitems;

    char *wm_name_str=NULL;
    int fmt;

    utf8_string = XInternAtom(dpy, "UTF8_STRING", False);

    nwm_atom =XInternAtom(dpy,"_NET_SUPPORTING_WM_CHECK",True);
    wm_name_atom =XInternAtom(dpy,"_NET_WM_NAME",True);

    if(nwm_atom!=None && wm_name_atom!=None){
        if(XGetWindowProperty(  dpy,root,nwm_atom,0,100,
                                False,XA_WINDOW,
                                &rt,&fmt,&nitems, &nbytes,
                                (unsigned char **)((void*)&wm_child))
                            != Success ){
            fprintf(stderr,"Error while trying to get a window to identify the window manager.\n");
        }
        if((wm_child == NULL) || (XGetWindowProperty( dpy,*wm_child,wm_name_atom,0,100,
                                False,utf8_string,&rt,
                                &fmt,&nitems, &nbytes,
                                (unsigned char **)((void*)&wm_name_str))
                             != Success )){
            fprintf(stderr,"Warning!!!\nYour window manager appears to be non-compliant!\n");
        }
    }
    fprintf(stderr,"Your window manager appears to be %s\n\n",
                    ((wm_name_str!=NULL)?wm_name_str:"Unknown"));


    return wm_name_str;
}
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