2 * Explorer desktop support
4 * Copyright 2006 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include <wine/debug.h>
27 #include "explorer_private.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(explorer);
31 #define DESKTOP_CLASS_ATOM ((LPCWSTR)MAKEINTATOM(32769))
32 #define DESKTOP_ALL_ACCESS 0x01ff
34 extern HANDLE __wine_make_process_system(void);
36 static BOOL using_root;
38 /* window procedure for the desktop window */
39 static LRESULT WINAPI desktop_wnd_proc( HWND hwnd, UINT message, WPARAM wp, LPARAM lp )
41 WINE_TRACE( "got msg %x wp %lx lp %lx\n", message, wp, lp );
46 if ((wp & 0xfff0) == SC_CLOSE) ExitWindows( 0, 0 );
54 return (LRESULT)SetCursor( LoadCursorA( 0, (LPSTR)IDC_ARROW ) );
60 if (!using_root) PaintDesktop( (HDC)wp );
66 BeginPaint( hwnd, &ps );
67 if (!using_root && ps.fErase) PaintDesktop( ps.hdc );
68 EndPaint( hwnd, &ps );
73 return DefWindowProcW( hwnd, message, wp, lp );
77 /* create the desktop and the associated X11 window, and make it the current desktop */
78 static unsigned long create_desktop( const char *name, unsigned int width, unsigned int height )
80 HMODULE x11drv = GetModuleHandleA( "winex11.drv" );
82 unsigned long xwin = 0;
83 unsigned long (*create_desktop_func)(unsigned int, unsigned int);
85 desktop = CreateDesktopA( name, NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL );
88 WINE_ERR( "failed to create desktop %s error %d\n", wine_dbgstr_a(name), GetLastError() );
91 /* magic: desktop "root" means use the X11 root window */
92 if (x11drv && strcasecmp( name, "root" ))
94 create_desktop_func = (void *)GetProcAddress( x11drv, "wine_create_desktop" );
95 if (create_desktop_func) xwin = create_desktop_func( width, height );
97 SetThreadDesktop( desktop );
101 /* retrieve the default desktop size from the X11 driver config */
102 /* FIXME: this is for backwards compatibility, should probably be changed */
103 static BOOL get_default_desktop_size( unsigned int *width, unsigned int *height )
107 DWORD size = sizeof(buffer);
110 /* @@ Wine registry key: HKCU\Software\Wine\X11 Driver */
111 if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\X11 Driver", &hkey )) return FALSE;
112 if (!RegQueryValueExA( hkey, "Desktop", 0, NULL, (LPBYTE)buffer, &size ))
113 ret = (sscanf( buffer, "%ux%u", width, height ) == 2);
118 static void initialize_display_settings( HWND desktop )
120 static const WCHAR display_device_guid_propW[] = {
121 '_','_','w','i','n','e','_','d','i','s','p','l','a','y','_',
122 'd','e','v','i','c','e','_','g','u','i','d',0 };
128 UuidToStringW( &guid, &guid_str );
129 WINE_TRACE( "display guid %s\n", wine_dbgstr_w(guid_str) );
131 guid_atom = GlobalAddAtomW( guid_str );
132 SetPropW( desktop, display_device_guid_propW, ULongToHandle(guid_atom) );
134 RpcStringFreeW( &guid_str );
137 /* main desktop management function */
138 void manage_desktop( char *arg )
142 unsigned long xwin = 0;
143 unsigned int width, height;
144 char *cmdline = NULL;
146 static const WCHAR desktop_nameW[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
148 /* get the rest of the command line (if any) */
149 while (*p && !isspace(*p)) p++;
153 while (*p && isspace(*p)) p++;
157 /* parse the desktop option */
158 /* the option is of the form /desktop=name[,widthxheight] */
159 if (*arg == '=' || *arg == ',')
162 if ((p = strchr( arg, ',' ))) *p++ = 0;
163 if (!p || sscanf( p, "%ux%u", &width, &height ) != 2)
168 xwin = create_desktop( arg, width, height );
170 else if (get_default_desktop_size( &width, &height ))
172 xwin = create_desktop( "Default", width, height );
175 if (!xwin) /* using the root window */
178 width = GetSystemMetrics(SM_CXSCREEN);
179 height = GetSystemMetrics(SM_CYSCREEN);
182 /* create the desktop window */
183 hwnd = CreateWindowExW( 0, DESKTOP_CLASS_ATOM, NULL,
184 WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
185 0, 0, width, height, 0, 0, 0, NULL );
186 if (hwnd == GetDesktopWindow())
188 SetWindowLongPtrW( hwnd, GWLP_WNDPROC, (LONG_PTR)desktop_wnd_proc );
189 SendMessageW( hwnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO)));
190 SetWindowTextW( hwnd, desktop_nameW );
191 SystemParametersInfoA( SPI_SETDESKPATTERN, -1, NULL, FALSE );
192 SetDeskWallPaper( (LPSTR)-1 );
193 initialize_display_settings( hwnd );
194 initialize_diskarbitration();
196 initialize_systray();
200 DestroyWindow( hwnd ); /* someone beat us to it */
204 /* if we have a command line, execute it */
208 PROCESS_INFORMATION pi;
210 memset( &si, 0, sizeof(si) );
212 WINE_TRACE( "starting %s\n", wine_dbgstr_a(cmdline) );
213 if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ))
215 CloseHandle( pi.hThread );
216 CloseHandle( pi.hProcess );
220 /* run the desktop message loop */
223 /* we don't use the system process event, the server
224 * posts a WM_CLOSE when the last desktop user is gone */
225 CloseHandle( __wine_make_process_system() );
227 WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd );
228 while (GetMessageW( &msg, 0, 0, 0 )) DispatchMessageW( &msg );
229 WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd );