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Sweden-Number/dlls/winex11.drv/x11drv_main.c

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/*
* X11DRV initialization code
*
* Copyright 1998 Patrik Stridvall
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <X11/cursorfont.h>
#include <X11/Xlib.h>
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_X11_EXTENSIONS_XRENDER_H
#include <X11/extensions/Xrender.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "x11drv.h"
#include "xcomposite.h"
#include "wine/server.h"
#include "wine/debug.h"
#include "wine/library.h"
WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
WINE_DECLARE_DEBUG_CHANNEL(synchronous);
WINE_DECLARE_DEBUG_CHANNEL(winediag);
XVisualInfo default_visual = { 0 };
XVisualInfo argb_visual = { 0 };
Colormap default_colormap = None;
XPixmapFormatValues **pixmap_formats;
unsigned int screen_bpp;
Window root_window;
BOOL usexvidmode = TRUE;
BOOL usexrandr = TRUE;
BOOL usexcomposite = TRUE;
BOOL use_xkb = TRUE;
BOOL use_take_focus = TRUE;
BOOL use_primary_selection = FALSE;
BOOL use_system_cursors = TRUE;
BOOL show_systray = TRUE;
BOOL grab_pointer = TRUE;
BOOL grab_fullscreen = FALSE;
BOOL managed_mode = TRUE;
BOOL decorated_mode = TRUE;
BOOL private_color_map = FALSE;
int primary_monitor = 0;
BOOL client_side_graphics = TRUE;
BOOL client_side_with_render = TRUE;
BOOL shape_layered_windows = TRUE;
int copy_default_colors = 128;
int alloc_system_colors = 256;
DWORD thread_data_tls_index = TLS_OUT_OF_INDEXES;
int xrender_error_base = 0;
HMODULE x11drv_module = 0;
static x11drv_error_callback err_callback; /* current callback for error */
static Display *err_callback_display; /* display callback is set for */
static void *err_callback_arg; /* error callback argument */
static int err_callback_result; /* error callback result */
static unsigned long err_serial; /* serial number of first request */
static int (*old_error_handler)( Display *, XErrorEvent * );
static BOOL use_xim = TRUE;
static char input_style[20];
#define IS_OPTION_TRUE(ch) \
((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
#define IS_OPTION_FALSE(ch) \
((ch) == 'n' || (ch) == 'N' || (ch) == 'f' || (ch) == 'F' || (ch) == '0')
Atom X11DRV_Atoms[NB_XATOMS - FIRST_XATOM];
static const char * const atom_names[NB_XATOMS - FIRST_XATOM] =
{
"CLIPBOARD",
"COMPOUND_TEXT",
"INCR",
"MANAGER",
"MULTIPLE",
"SELECTION_DATA",
"TARGETS",
"TEXT",
"UTF8_STRING",
"RAW_ASCENT",
"RAW_DESCENT",
"RAW_CAP_HEIGHT",
"Rel X",
"Rel Y",
"WM_PROTOCOLS",
"WM_DELETE_WINDOW",
"WM_STATE",
"WM_TAKE_FOCUS",
"DndProtocol",
"DndSelection",
"_ICC_PROFILE",
"_MOTIF_WM_HINTS",
"_NET_STARTUP_INFO_BEGIN",
"_NET_STARTUP_INFO",
"_NET_SUPPORTED",
"_NET_SYSTEM_TRAY_OPCODE",
"_NET_SYSTEM_TRAY_S0",
"_NET_SYSTEM_TRAY_VISUAL",
"_NET_WM_ICON",
"_NET_WM_MOVERESIZE",
"_NET_WM_NAME",
"_NET_WM_PID",
"_NET_WM_PING",
"_NET_WM_STATE",
"_NET_WM_STATE_ABOVE",
"_NET_WM_STATE_FULLSCREEN",
"_NET_WM_STATE_MAXIMIZED_HORZ",
"_NET_WM_STATE_MAXIMIZED_VERT",
"_NET_WM_STATE_SKIP_PAGER",
"_NET_WM_STATE_SKIP_TASKBAR",
"_NET_WM_USER_TIME",
"_NET_WM_USER_TIME_WINDOW",
"_NET_WM_WINDOW_OPACITY",
"_NET_WM_WINDOW_TYPE",
"_NET_WM_WINDOW_TYPE_DIALOG",
"_NET_WM_WINDOW_TYPE_NORMAL",
"_NET_WM_WINDOW_TYPE_UTILITY",
"_NET_WORKAREA",
"_XEMBED",
"_XEMBED_INFO",
"XdndAware",
"XdndEnter",
"XdndPosition",
"XdndStatus",
"XdndLeave",
"XdndFinished",
"XdndDrop",
"XdndActionCopy",
"XdndActionMove",
"XdndActionLink",
"XdndActionAsk",
"XdndActionPrivate",
"XdndSelection",
"XdndTarget",
"XdndTypeList",
"HTML Format",
"WCF_BITMAP",
"WCF_DIB",
"WCF_DIBV5",
"WCF_DIF",
"WCF_DSPBITMAP",
"WCF_DSPENHMETAFILE",
"WCF_DSPMETAFILEPICT",
"WCF_DSPTEXT",
"WCF_ENHMETAFILE",
"WCF_HDROP",
"WCF_LOCALE",
"WCF_METAFILEPICT",
"WCF_OEMTEXT",
"WCF_OWNERDISPLAY",
"WCF_PALETTE",
"WCF_PENDATA",
"WCF_RIFF",
"WCF_SYLK",
"WCF_TIFF",
"WCF_WAVE",
"image/bmp",
"image/gif",
"image/jpeg",
"image/png",
"text/html",
"text/plain",
"text/rtf",
"text/richtext",
"text/uri-list"
};
/***********************************************************************
* ignore_error
*
* Check if the X error is one we can ignore.
*/
static inline BOOL ignore_error( Display *display, XErrorEvent *event )
{
if ((event->request_code == X_SetInputFocus || event->request_code == X_ChangeWindowAttributes) &&
(event->error_code == BadMatch || event->error_code == BadWindow)) return TRUE;
/* ignore a number of errors on gdi display caused by creating/destroying windows */
if (display == gdi_display)
{
if (event->error_code == BadDrawable ||
event->error_code == BadGC ||
event->error_code == BadWindow)
return TRUE;
#ifdef HAVE_X11_EXTENSIONS_XRENDER_H
if (xrender_error_base) /* check for XRender errors */
{
if (event->error_code == xrender_error_base + BadPicture) return TRUE;
}
#endif
}
return FALSE;
}
/***********************************************************************
* X11DRV_expect_error
*
* Setup a callback function that will be called on an X error. The
* callback must return non-zero if the error is the one it expected.
*/
void X11DRV_expect_error( Display *display, x11drv_error_callback callback, void *arg )
{
err_callback = callback;
err_callback_display = display;
err_callback_arg = arg;
err_callback_result = 0;
err_serial = NextRequest(display);
}
/***********************************************************************
* X11DRV_check_error
*
* Check if an expected X11 error occurred; return non-zero if yes.
* The caller is responsible for calling XSync first if necessary.
*/
int X11DRV_check_error(void)
{
err_callback = NULL;
return err_callback_result;
}
/***********************************************************************
* error_handler
*/
static int error_handler( Display *display, XErrorEvent *error_evt )
{
if (err_callback && display == err_callback_display &&
(long)(error_evt->serial - err_serial) >= 0)
{
if ((err_callback_result = err_callback( display, error_evt, err_callback_arg )))
{
TRACE( "got expected error %d req %d\n",
error_evt->error_code, error_evt->request_code );
return 0;
}
}
if (ignore_error( display, error_evt ))
{
TRACE( "got ignored error %d req %d\n",
error_evt->error_code, error_evt->request_code );
return 0;
}
if (TRACE_ON(synchronous))
{
ERR( "X protocol error: serial=%ld, request_code=%d - breaking into debugger\n",
error_evt->serial, error_evt->request_code );
DebugBreak(); /* force an entry in the debugger */
}
old_error_handler( display, error_evt );
return 0;
}
/***********************************************************************
* init_pixmap_formats
*/
static void init_pixmap_formats( Display *display )
{
int i, count, max = 32;
XPixmapFormatValues *formats = XListPixmapFormats( display, &count );
for (i = 0; i < count; i++)
{
TRACE( "depth %u, bpp %u, pad %u\n",
formats[i].depth, formats[i].bits_per_pixel, formats[i].scanline_pad );
if (formats[i].depth > max) max = formats[i].depth;
}
pixmap_formats = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pixmap_formats) * (max + 1) );
for (i = 0; i < count; i++) pixmap_formats[formats[i].depth] = &formats[i];
}
/***********************************************************************
* get_config_key
*
* Get a config key from either the app-specific or the default config
*/
static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
char *buffer, DWORD size )
{
if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
return ERROR_FILE_NOT_FOUND;
}
/***********************************************************************
* setup_options
*
* Setup the x11drv options.
*/
static void setup_options(void)
{
char buffer[MAX_PATH+16];
HKEY hkey, appkey = 0;
DWORD len;
/* @@ Wine registry key: HKCU\Software\Wine\X11 Driver */
if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\X11 Driver", &hkey )) hkey = 0;
/* open the app-specific key */
len = (GetModuleFileNameA( 0, buffer, MAX_PATH ));
if (len && len < MAX_PATH)
{
HKEY tmpkey;
char *p, *appname = buffer;
if ((p = strrchr( appname, '/' ))) appname = p + 1;
if ((p = strrchr( appname, '\\' ))) appname = p + 1;
strcat( appname, "\\X11 Driver" );
/* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\X11 Driver */
if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
{
if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
RegCloseKey( tmpkey );
}
}
if (!get_config_key( hkey, appkey, "Managed", buffer, sizeof(buffer) ))
managed_mode = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "Decorated", buffer, sizeof(buffer) ))
decorated_mode = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UseXVidMode", buffer, sizeof(buffer) ))
usexvidmode = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UseXRandR", buffer, sizeof(buffer) ))
usexrandr = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UseTakeFocus", buffer, sizeof(buffer) ))
use_take_focus = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UsePrimarySelection", buffer, sizeof(buffer) ))
use_primary_selection = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UseSystemCursors", buffer, sizeof(buffer) ))
use_system_cursors = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "ShowSystray", buffer, sizeof(buffer) ))
show_systray = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "GrabPointer", buffer, sizeof(buffer) ))
grab_pointer = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "GrabFullscreen", buffer, sizeof(buffer) ))
grab_fullscreen = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "ScreenDepth", buffer, sizeof(buffer) ))
default_visual.depth = atoi(buffer);
if (!get_config_key( hkey, appkey, "ClientSideGraphics", buffer, sizeof(buffer) ))
client_side_graphics = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "ClientSideWithRender", buffer, sizeof(buffer) ))
client_side_with_render = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "UseXIM", buffer, sizeof(buffer) ))
use_xim = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "ShapeLayeredWindows", buffer, sizeof(buffer) ))
shape_layered_windows = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "PrivateColorMap", buffer, sizeof(buffer) ))
private_color_map = IS_OPTION_TRUE( buffer[0] );
if (!get_config_key( hkey, appkey, "PrimaryMonitor", buffer, sizeof(buffer) ))
primary_monitor = atoi( buffer );
if (!get_config_key( hkey, appkey, "CopyDefaultColors", buffer, sizeof(buffer) ))
copy_default_colors = atoi(buffer);
if (!get_config_key( hkey, appkey, "AllocSystemColors", buffer, sizeof(buffer) ))
alloc_system_colors = atoi(buffer);
get_config_key( hkey, appkey, "InputStyle", input_style, sizeof(input_style) );
if (appkey) RegCloseKey( appkey );
if (hkey) RegCloseKey( hkey );
}
#ifdef SONAME_LIBXCOMPOSITE
#define MAKE_FUNCPTR(f) typeof(f) * p##f;
MAKE_FUNCPTR(XCompositeQueryExtension)
MAKE_FUNCPTR(XCompositeQueryVersion)
MAKE_FUNCPTR(XCompositeVersion)
MAKE_FUNCPTR(XCompositeRedirectWindow)
MAKE_FUNCPTR(XCompositeRedirectSubwindows)
MAKE_FUNCPTR(XCompositeUnredirectWindow)
MAKE_FUNCPTR(XCompositeUnredirectSubwindows)
MAKE_FUNCPTR(XCompositeCreateRegionFromBorderClip)
MAKE_FUNCPTR(XCompositeNameWindowPixmap)
#undef MAKE_FUNCPTR
static int xcomp_event_base;
static int xcomp_error_base;
static void X11DRV_XComposite_Init(void)
{
void *xcomposite_handle = wine_dlopen(SONAME_LIBXCOMPOSITE, RTLD_NOW, NULL, 0);
if (!xcomposite_handle)
{
TRACE("Unable to open %s, XComposite disabled\n", SONAME_LIBXCOMPOSITE);
usexcomposite = FALSE;
return;
}
#define LOAD_FUNCPTR(f) \
if((p##f = wine_dlsym(xcomposite_handle, #f, NULL, 0)) == NULL) \
goto sym_not_found;
LOAD_FUNCPTR(XCompositeQueryExtension)
LOAD_FUNCPTR(XCompositeQueryVersion)
LOAD_FUNCPTR(XCompositeVersion)
LOAD_FUNCPTR(XCompositeRedirectWindow)
LOAD_FUNCPTR(XCompositeRedirectSubwindows)
LOAD_FUNCPTR(XCompositeUnredirectWindow)
LOAD_FUNCPTR(XCompositeUnredirectSubwindows)
LOAD_FUNCPTR(XCompositeCreateRegionFromBorderClip)
LOAD_FUNCPTR(XCompositeNameWindowPixmap)
#undef LOAD_FUNCPTR
if(!pXCompositeQueryExtension(gdi_display, &xcomp_event_base,
&xcomp_error_base)) {
TRACE("XComposite extension could not be queried; disabled\n");
wine_dlclose(xcomposite_handle, NULL, 0);
xcomposite_handle = NULL;
usexcomposite = FALSE;
return;
}
TRACE("XComposite is up and running error_base = %d\n", xcomp_error_base);
return;
sym_not_found:
TRACE("Unable to load function pointers from %s, XComposite disabled\n", SONAME_LIBXCOMPOSITE);
wine_dlclose(xcomposite_handle, NULL, 0);
xcomposite_handle = NULL;
usexcomposite = FALSE;
}
#endif /* defined(SONAME_LIBXCOMPOSITE) */
static void init_visuals( Display *display, int screen )
{
int count;
XVisualInfo *info;
default_visual.screen = screen;
if (default_visual.depth) /* depth specified */
{
info = XGetVisualInfo( display, VisualScreenMask | VisualDepthMask, &default_visual, &count );
if (info)
{
default_visual = *info;
XFree( info );
}
else WARN( "no visual found for depth %d\n", default_visual.depth );
}
if (!default_visual.visual)
{
default_visual.depth = DefaultDepth( display, screen );
default_visual.visual = DefaultVisual( display, screen );
default_visual.visualid = default_visual.visual->visualid;
default_visual.class = default_visual.visual->class;
default_visual.red_mask = default_visual.visual->red_mask;
default_visual.green_mask = default_visual.visual->green_mask;
default_visual.blue_mask = default_visual.visual->blue_mask;
default_visual.colormap_size = default_visual.visual->map_entries;
default_visual.bits_per_rgb = default_visual.visual->bits_per_rgb;
}
default_colormap = XCreateColormap( display, root_window, default_visual.visual, AllocNone );
argb_visual.screen = screen;
argb_visual.class = TrueColor;
argb_visual.depth = 32;
argb_visual.red_mask = 0xff0000;
argb_visual.green_mask = 0x00ff00;
argb_visual.blue_mask = 0x0000ff;
if ((info = XGetVisualInfo( display, VisualScreenMask | VisualDepthMask | VisualClassMask |
VisualRedMaskMask | VisualGreenMaskMask | VisualBlueMaskMask,
&argb_visual, &count )))
{
argb_visual = *info;
XFree( info );
}
TRACE( "default visual %lx class %u argb %lx\n",
default_visual.visualid, default_visual.class, argb_visual.visualid );
}
/***********************************************************************
* X11DRV process initialisation routine
*/
static BOOL process_attach(void)
{
char error[1024];
Display *display;
void *libx11 = wine_dlopen( SONAME_LIBX11, RTLD_NOW|RTLD_GLOBAL, error, sizeof(error) );
if (!libx11)
{
ERR( "failed to load %s: %s\n", SONAME_LIBX11, error );
return FALSE;
}
pXGetEventData = wine_dlsym( libx11, "XGetEventData", NULL, 0 );
pXFreeEventData = wine_dlsym( libx11, "XFreeEventData", NULL, 0 );
#ifdef SONAME_LIBXEXT
wine_dlopen( SONAME_LIBXEXT, RTLD_NOW|RTLD_GLOBAL, NULL, 0 );
#endif
setup_options();
if ((thread_data_tls_index = TlsAlloc()) == TLS_OUT_OF_INDEXES) return FALSE;
/* Open display */
if (!XInitThreads()) ERR( "XInitThreads failed, trouble ahead\n" );
if (!(display = XOpenDisplay( NULL ))) return FALSE;
fcntl( ConnectionNumber(display), F_SETFD, 1 ); /* set close on exec flag */
root_window = DefaultRootWindow( display );
gdi_display = display;
old_error_handler = XSetErrorHandler( error_handler );
init_pixmap_formats( display );
init_visuals( display, DefaultScreen( display ));
screen_bpp = pixmap_formats[default_visual.depth]->bits_per_pixel;
XInternAtoms( display, (char **)atom_names, NB_XATOMS - FIRST_XATOM, False, X11DRV_Atoms );
winContext = XUniqueContext();
win_data_context = XUniqueContext();
cursor_context = XUniqueContext();
if (TRACE_ON(synchronous)) XSynchronize( display, True );
xinerama_init( DisplayWidth( display, default_visual.screen ),
DisplayHeight( display, default_visual.screen ));
X11DRV_Settings_Init();
/* initialize XVidMode */
X11DRV_XF86VM_Init();
/* initialize XRandR */
X11DRV_XRandR_Init();
#ifdef SONAME_LIBXCOMPOSITE
X11DRV_XComposite_Init();
#endif
X11DRV_XInput2_Init();
#ifdef HAVE_XKB
if (use_xkb) use_xkb = XkbUseExtension( gdi_display, NULL, NULL );
#endif
X11DRV_InitKeyboard( gdi_display );
X11DRV_InitClipboard();
if (use_xim) use_xim = X11DRV_InitXIM( input_style );
return TRUE;
}
/***********************************************************************
* X11DRV thread termination routine
*/
static void thread_detach(void)
{
struct x11drv_thread_data *data = TlsGetValue( thread_data_tls_index );
if (data)
{
X11DRV_ResetSelectionOwner();
if (data->xim) XCloseIM( data->xim );
if (data->font_set) XFreeFontSet( data->display, data->font_set );
XCloseDisplay( data->display );
HeapFree( GetProcessHeap(), 0, data );
/* clear data in case we get re-entered from user32 before the thread is truly dead */
TlsSetValue( thread_data_tls_index, NULL );
}
}
/* store the display fd into the message queue */
static void set_queue_display_fd( Display *display )
{
HANDLE handle;
int ret;
if (wine_server_fd_to_handle( ConnectionNumber(display), GENERIC_READ | SYNCHRONIZE, 0, &handle ))
{
MESSAGE( "x11drv: Can't allocate handle for display fd\n" );
ExitProcess(1);
}
SERVER_START_REQ( set_queue_fd )
{
req->handle = wine_server_obj_handle( handle );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret)
{
MESSAGE( "x11drv: Can't store handle for display fd\n" );
ExitProcess(1);
}
CloseHandle( handle );
}
/***********************************************************************
* X11DRV thread initialisation routine
*/
struct x11drv_thread_data *x11drv_init_thread_data(void)
{
struct x11drv_thread_data *data = x11drv_thread_data();
if (data) return data;
if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
{
ERR( "could not create data\n" );
ExitProcess(1);
}
if (!(data->display = XOpenDisplay(NULL)))
{
ERR_(winediag)( "x11drv: Can't open display: %s. Please ensure that your X server is running and that $DISPLAY is set correctly.\n", XDisplayName(NULL));
ExitProcess(1);
}
fcntl( ConnectionNumber(data->display), F_SETFD, 1 ); /* set close on exec flag */
#ifdef HAVE_XKB
if (use_xkb && XkbUseExtension( data->display, NULL, NULL ))
XkbSetDetectableAutoRepeat( data->display, True, NULL );
#endif
if (TRACE_ON(synchronous)) XSynchronize( data->display, True );
set_queue_display_fd( data->display );
TlsSetValue( thread_data_tls_index, data );
if (use_xim) X11DRV_SetupXIM();
return data;
}
/***********************************************************************
* X11DRV initialisation routine
*/
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
BOOL ret = TRUE;
switch(reason)
{
case DLL_PROCESS_ATTACH:
x11drv_module = hinst;
ret = process_attach();
break;
case DLL_THREAD_DETACH:
thread_detach();
break;
}
return ret;
}
/***********************************************************************
* SystemParametersInfo (X11DRV.@)
*/
BOOL CDECL X11DRV_SystemParametersInfo( UINT action, UINT int_param, void *ptr_param, UINT flags )
{
switch (action)
{
case SPI_GETSCREENSAVEACTIVE:
if (ptr_param)
{
int timeout, temp;
XGetScreenSaver(gdi_display, &timeout, &temp, &temp, &temp);
*(BOOL *)ptr_param = timeout != 0;
return TRUE;
}
break;
case SPI_SETSCREENSAVEACTIVE:
{
int timeout, interval, prefer_blanking, allow_exposures;
static int last_timeout = 15 * 60;
XLockDisplay( gdi_display );
XGetScreenSaver(gdi_display, &timeout, &interval, &prefer_blanking,
&allow_exposures);
if (timeout) last_timeout = timeout;
timeout = int_param ? last_timeout : 0;
XSetScreenSaver(gdi_display, timeout, interval, prefer_blanking,
allow_exposures);
XUnlockDisplay( gdi_display );
}
break;
}
return FALSE; /* let user32 handle it */
}
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