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 %04x 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 };
129 UuidToStringA( &guid
, &guid_str
);
130 WINE_TRACE( "display guid %s\n", guid_str
);
132 guid_atom
= GlobalAddAtomA( (LPCSTR
)guid_str
);
133 SetPropW( desktop
, display_device_guid_propW
, ULongToHandle(guid_atom
) );
135 RpcStringFreeA( &guid_str
);
137 /* Store current display mode in the registry */
138 if (EnumDisplaySettingsExW( NULL
, ENUM_CURRENT_SETTINGS
, &dmW
, 0 ))
140 WINE_TRACE( "Current display mode %ux%u %u bpp %u Hz\n", dmW
.dmPelsWidth
,
141 dmW
.dmPelsHeight
, dmW
.dmBitsPerPel
, dmW
.dmDisplayFrequency
);
142 ChangeDisplaySettingsExW( NULL
, &dmW
, 0,
143 CDS_GLOBAL
| CDS_NORESET
| CDS_UPDATEREGISTRY
,
148 /* main desktop management function */
149 void manage_desktop( char *arg
)
153 unsigned long xwin
= 0;
154 unsigned int width
, height
;
155 char *cmdline
= NULL
;
157 static const WCHAR desktop_nameW
[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
159 /* get the rest of the command line (if any) */
160 while (*p
&& !isspace(*p
)) p
++;
164 while (*p
&& isspace(*p
)) p
++;
168 /* parse the desktop option */
169 /* the option is of the form /desktop=name[,widthxheight] */
170 if (*arg
== '=' || *arg
== ',')
173 if ((p
= strchr( arg
, ',' ))) *p
++ = 0;
174 if (!p
|| sscanf( p
, "%ux%u", &width
, &height
) != 2)
179 xwin
= create_desktop( arg
, width
, height
);
181 else if (get_default_desktop_size( &width
, &height
))
183 xwin
= create_desktop( "Default", width
, height
);
186 if (!xwin
) /* using the root window */
189 width
= GetSystemMetrics(SM_CXSCREEN
);
190 height
= GetSystemMetrics(SM_CYSCREEN
);
193 /* create the desktop window */
194 hwnd
= CreateWindowExW( 0, DESKTOP_CLASS_ATOM
, NULL
,
195 WS_POPUP
| WS_VISIBLE
| WS_CLIPSIBLINGS
| WS_CLIPCHILDREN
,
196 0, 0, width
, height
, 0, 0, 0, NULL
);
197 if (hwnd
== GetDesktopWindow())
199 SetWindowLongPtrW( hwnd
, GWLP_WNDPROC
, (LONG_PTR
)desktop_wnd_proc
);
200 SendMessageW( hwnd
, WM_SETICON
, ICON_BIG
, (LPARAM
)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO
)));
201 SetWindowTextW( hwnd
, desktop_nameW
);
202 SystemParametersInfoA( SPI_SETDESKPATTERN
, -1, NULL
, FALSE
);
203 SetDeskWallPaper( (LPSTR
)-1 );
204 initialize_display_settings( hwnd
);
205 initialize_diskarbitration();
207 initialize_systray();
211 DestroyWindow( hwnd
); /* someone beat us to it */
215 /* if we have a command line, execute it */
219 PROCESS_INFORMATION pi
;
221 memset( &si
, 0, sizeof(si
) );
223 WINE_TRACE( "starting %s\n", wine_dbgstr_a(cmdline
) );
224 if (CreateProcessA( NULL
, cmdline
, NULL
, NULL
, FALSE
, 0, NULL
, NULL
, &si
, &pi
))
226 CloseHandle( pi
.hThread
);
227 CloseHandle( pi
.hProcess
);
231 /* run the desktop message loop */
234 /* we don't use the system process event, the server
235 * posts a WM_CLOSE when the last desktop user is gone */
236 CloseHandle( __wine_make_process_system() );
238 WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd
);
239 while (GetMessageW( &msg
, 0, 0, 0 )) DispatchMessageW( &msg
);
240 WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd
);