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 static BOOL using_root;
36 /* window procedure for the desktop window */
37 static LRESULT WINAPI desktop_wnd_proc( HWND hwnd, UINT message, WPARAM wp, LPARAM lp )
39 WINE_TRACE( "got msg %x wp %x lp %lx\n", message, wp, lp );
44 if ((wp & 0xfff0) == SC_CLOSE) ExitWindows( 0, 0 );
52 return (LRESULT)SetCursor( LoadCursorA( 0, (LPSTR)IDC_ARROW ) );
58 if (!using_root) PaintDesktop( (HDC)wp );
64 BeginPaint( hwnd, &ps );
65 if (!using_root && ps.fErase) PaintDesktop( ps.hdc );
66 EndPaint( hwnd, &ps );
71 return DefWindowProcW( hwnd, message, wp, lp );
75 /* create the desktop and the associated X11 window, and make it the current desktop */
76 static unsigned long create_desktop( const char *name, unsigned int width, unsigned int height )
78 HMODULE x11drv = GetModuleHandleA( "winex11.drv" );
80 unsigned long xwin = 0;
81 unsigned long (*create_desktop_func)(unsigned int, unsigned int);
83 desktop = CreateDesktopA( name, NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL );
86 WINE_ERR( "failed to create desktop %s error %d\n", wine_dbgstr_a(name), GetLastError() );
89 /* magic: desktop "root" means use the X11 root window */
90 if (x11drv && strcasecmp( name, "root" ))
92 create_desktop_func = (void *)GetProcAddress( x11drv, "wine_create_desktop" );
93 if (create_desktop_func) xwin = create_desktop_func( width, height );
95 SetThreadDesktop( desktop );
99 /* retrieve the default desktop size from the X11 driver config */
100 /* FIXME: this is for backwards compatibility, should probably be changed */
101 static BOOL get_default_desktop_size( unsigned int *width, unsigned int *height )
105 DWORD size = sizeof(buffer);
108 /* @@ Wine registry key: HKCU\Software\Wine\X11 Driver */
109 if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\X11 Driver", &hkey )) return FALSE;
110 if (!RegQueryValueExA( hkey, "Desktop", 0, NULL, (LPBYTE)buffer, &size ))
111 ret = (sscanf( buffer, "%ux%u", width, height ) == 2);
116 /* main desktop management function */
117 void manage_desktop( char *arg )
121 unsigned long xwin = 0;
122 unsigned int width, height;
123 char *cmdline = NULL;
125 static const WCHAR desktop_nameW[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
127 /* get the rest of the command line (if any) */
128 while (*p && !isspace(*p)) p++;
132 while (*p && isspace(*p)) p++;
136 /* parse the desktop option */
137 /* the option is of the form /desktop=name[,widthxheight] */
138 if (*arg == '=' || *arg == ',')
141 if ((p = strchr( arg, ',' ))) *p++ = 0;
142 if (!p || sscanf( p, "%ux%u", &width, &height ) != 2)
147 xwin = create_desktop( arg, width, height );
149 else if (get_default_desktop_size( &width, &height ))
151 xwin = create_desktop( "Default", width, height );
154 if (!xwin) /* using the root window */
157 width = GetSystemMetrics(SM_CXSCREEN);
158 height = GetSystemMetrics(SM_CYSCREEN);
161 /* create the desktop window */
162 hwnd = CreateWindowExW( 0, DESKTOP_CLASS_ATOM, NULL,
163 WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
164 0, 0, width, height, 0, 0, 0, NULL );
165 if (hwnd == GetDesktopWindow())
167 SetWindowLongPtrW( hwnd, GWLP_WNDPROC, (LONG_PTR)desktop_wnd_proc );
168 SendMessageW( hwnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO)));
169 SetWindowTextW( hwnd, desktop_nameW );
170 SystemParametersInfoA( SPI_SETDESKPATTERN, -1, NULL, FALSE );
171 SetDeskWallPaper( (LPSTR)-1 );
172 initialize_diskarbitration();
174 initialize_systray();
178 DestroyWindow( hwnd ); /* someone beat us to it */
182 /* if we have a command line, execute it */
186 PROCESS_INFORMATION pi;
188 memset( &si, 0, sizeof(si) );
190 WINE_TRACE( "starting %s\n", wine_dbgstr_a(cmdline) );
191 if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ))
193 CloseHandle( pi.hThread );
194 CloseHandle( pi.hProcess );
198 /* run the desktop message loop */
201 WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd );
202 while (GetMessageW( &msg, 0, 0, 0 )) DispatchMessageW( &msg );
203 WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd );