cdesktopenv/cde/lib/DtSvc/DtUtil1/WmBackWin.c

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/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/*
* (c) Copyright 1993, 1994 Hewlett-Packard Company *
* (c) Copyright 1993, 1994 International Business Machines Corp. *
* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
* (c) Copyright 1993, 1994 Novell, Inc. *
*/
/************************************<+>*************************************
****************************************************************************
**
** File: WmBackWin.c
**
** RCS: $XConsortium: WmBackWin.c /main/4 1995/10/26 15:12:20 rswiston $
** Project: DT Workspace Manager
**
** Description: Identify backdrop windows
**
** (c) Copyright 1993 by Hewlett-Packard Company
**
****************************************************************************
************************************<+>*************************************/
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <Dt/Wsm.h>
#include <Xm/Xm.h>
#include <Xm/AtomMgr.h>
/******** Public Function Declarations ********/
extern Window DtWsmGetCurrentBackdropWindow(
Display *display,
Window root);
extern Boolean _DtWsmIsBackdropWindow(
Display *display,
int screen_num,
Window window );
/******** End Public Function Declarations ********/
/*************************************<->*************************************
*
* Window DtWsmGetCurrentBackdropWindow (display, root)
*
*
* Description:
* -----------
* Returns the window used for the backdrop for the current workspace
*
*
* Inputs:
* ------
* display - display
* root - root window
*
* Return - window used for current workspace
* None if no backdrop window or error
*
* Comments:
* --------
*
*
*************************************<->***********************************/
Window
DtWsmGetCurrentBackdropWindow(
Display *display ,
Window root )
{
Window wReturn = None;
Atom aWS;
DtWsmWorkspaceInfo *pWsInfo;
Status status;
status = DtWsmGetCurrentWorkspace (display, root, &aWS);
if (status == Success)
{
status = DtWsmGetWorkspaceInfo(display, root, aWS, &pWsInfo);
if (status == Success)
{
if (pWsInfo->numBackdropWindows > 0)
{
/* copy backdrop window (there should be at most one) */
wReturn = pWsInfo->backdropWindows[0];
}
DtWsmFreeWorkspaceInfo (pWsInfo);
}
}
return (wReturn);
} /* END OF FUNCTION DtWsmGetCurrentBackdropWindow */
/*************************************<->*************************************
*
* Boolean _DtWsmIsBackdropWindow (display, screen_num, window)
*
*
* Description:
* -----------
* Returns true if the window passed in is a backdrop window.
*
*
* Inputs:
* ------
* display - display
* screen_num - number of screen we're interested in
* window - window we want to test
*
* Outputs:
* -------
* Return - True if window is a backdrop window
* False otherwise.
*
* Comments:
* --------
*
*************************************<->***********************************/
Boolean
_DtWsmIsBackdropWindow(
Display *display,
int screen_num,
Window window )
{
Boolean rval = False;
Status status;
Atom *pWorkspaceList;
int ix, iw, numWorkspaces;
DtWsmWorkspaceInfo *pWsInfo;
Window root;
root = XRootWindow (display, screen_num);
status = DtWsmGetWorkspaceList (display, root,
&pWorkspaceList, &numWorkspaces);
if ((status == Success) &&
(numWorkspaces > 0) &&
(pWsInfo = (DtWsmWorkspaceInfo *)
malloc (numWorkspaces * sizeof(DtWsmWorkspaceInfo))))
{
for (ix=0;
(!rval) && (ix < numWorkspaces) && (status == Success);
ix++)
{
status = DtWsmGetWorkspaceInfo (display,
root,
pWorkspaceList[ix],
&pWsInfo);
if (status == Success)
{
for (iw = 0; iw < pWsInfo->numBackdropWindows; iw++)
{
if (pWsInfo->backdropWindows[iw] == window)
{
rval = True;
}
}
DtWsmFreeWorkspaceInfo(pWsInfo);
}
}
XFree ((char *)pWorkspaceList);
}
return (rval);
} /* END OF FUNCTION _DtWsmIsBackdropWindow */