#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
#include "winmsg.h"
#include "winconfig.h"
#include "winprefs.h"
#ifdef XWIN_CLIPBOARD
#include "X11/Xlocale.h"
#endif
#ifdef DPMSExtension
#include "dpmsproc.h"
#endif
#ifdef __CYGWIN__
#include <mntent.h>
#endif
#if defined(WIN32)
#include "xkbsrv.h"
#endif
#ifdef RELOCATE_PROJECTROOT
#include <shlobj.h>
typedef HRESULT (*SHGETFOLDERPATHPROC)(
HWND hwndOwner,
int nFolder,
HANDLE hToken,
DWORD dwFlags,
LPTSTR pszPath
);
#endif
#ifdef XWIN_CLIPBOARD
extern Bool g_fUnicodeClipboard;
extern Bool g_fClipboardLaunched;
extern Bool g_fClipboardStarted;
extern pthread_t g_ptClipboardProc;
extern HWND g_hwndClipboard;
extern Bool g_fClipboard;
#endif
static HMODULE g_hmodCommonControls = NULL;
#ifdef XWIN_CLIPBOARD
static void
winClipboardShutdown (void);
#endif
#if defined(DDXOSVERRORF)
void
OsVendorVErrorF (const char *pszFormat, va_list va_args);
#endif
static Bool
winCheckDisplayNumber (void);
void
winLogCommandLine (int argc, char *argv[]);
void
winLogVersionInfo (void);
Bool
winValidateArgs (void);
#ifdef RELOCATE_PROJECTROOT
const char *
winGetBaseDir(void);
#endif
static PixmapFormatRec g_PixmapFormats[] = {
{ 1, 1, BITMAP_SCANLINE_PAD },
{ 4, 8, BITMAP_SCANLINE_PAD },
{ 8, 8, BITMAP_SCANLINE_PAD },
{ 15, 16, BITMAP_SCANLINE_PAD },
{ 16, 16, BITMAP_SCANLINE_PAD },
{ 24, 32, BITMAP_SCANLINE_PAD },
{ 32, 32, BITMAP_SCANLINE_PAD }
};
const int NUMFORMATS = sizeof (g_PixmapFormats) / sizeof (g_PixmapFormats[0]);
#ifdef XWIN_CLIPBOARD
static void
winClipboardShutdown (void)
{
if (g_fClipboard && g_fClipboardLaunched && g_fClipboardStarted)
{
if (g_hwndClipboard != NULL)
{
SendMessage (g_hwndClipboard, WM_DESTROY, 0, 0);
}
else
return;
pthread_join (g_ptClipboardProc, NULL);
g_fClipboardLaunched = FALSE;
g_fClipboardStarted = FALSE;
winDebug ("winClipboardShutdown - Clipboard thread has exited.\n");
}
}
#endif
void
ddxPushProviders(void)
{
#ifdef XWIN_GLX_WINDOWS
if (g_fNativeGl)
{
glxWinPushNativeProvider();
}
#endif
}
#if defined(DDXBEFORERESET)
void
ddxBeforeReset (void)
{
winDebug ("ddxBeforeReset - Hello\n");
#ifdef XWIN_CLIPBOARD
winClipboardShutdown ();
#endif
}
#endif
void
ddxGiveUp (void)
{
int i;
#if CYGDEBUG
winDebug ("ddxGiveUp\n");
#endif
for (i = 0; i < g_iNumScreens; ++i)
{
if (!g_ScreenInfo[i].fNoTrayIcon && g_ScreenInfo[i].pScreen)
winDeleteNotifyIcon (winGetScreenPriv (g_ScreenInfo[i].pScreen));
}
#ifdef XWIN_MULTIWINDOW
winDeinitMultiWindowWM ();
#endif
#ifdef HAS_DEVWINDOWS
if (g_fdMessageQueue != WIN_FD_INVALID)
{
close (g_fdMessageQueue);
g_fdMessageQueue = WIN_FD_INVALID;
}
#endif
if (!g_fLogInited) {
g_pszLogFile = LogInit (g_pszLogFile, NULL);
g_fLogInited = TRUE;
}
LogClose ();
winReleaseDDProcAddresses();
if (g_hmodCommonControls != NULL)
{
FreeLibrary (g_hmodCommonControls);
g_hmodCommonControls = NULL;
g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;
}
free(g_pszCommandLine);
g_pszCommandLine = NULL;
winRemoveKeyboardHookLL ();
PostQuitMessage (0);
}
void
AbortDDX (void)
{
#if CYGDEBUG
winDebug ("AbortDDX\n");
#endif
ddxGiveUp ();
}
#ifdef __CYGWIN__
static const char *winCheckMntOpt(const struct mntent *mnt, const char *opt)
{
const char *s;
size_t len;
if (mnt == NULL)
return NULL;
if (opt == NULL)
return NULL;
if (mnt->mnt_opts == NULL)
return NULL;
len = strlen(opt);
s = strstr(mnt->mnt_opts, opt);
if (s == NULL)
return NULL;
if ((s == mnt->mnt_opts || *(s-1) == ',') && (s[len] == 0 || s[len] == ','))
return (char *)opt;
return NULL;
}
static void
winCheckMount(void)
{
FILE *mnt;
struct mntent *ent;
enum { none = 0, sys_root, user_root, sys_tmp, user_tmp }
level = none, curlevel;
BOOL binary = TRUE;
mnt = setmntent("/etc/mtab", "r");
if (mnt == NULL)
{
ErrorF("setmntent failed");
return;
}
while ((ent = getmntent(mnt)) != NULL)
{
BOOL system = (winCheckMntOpt(ent, "user") != NULL);
BOOL root = (strcmp(ent->mnt_dir, "/") == 0);
BOOL tmp = (strcmp(ent->mnt_dir, "/tmp") == 0);
if (system)
{
if (root)
curlevel = sys_root;
else if (tmp)
curlevel = sys_tmp;
else
continue;
}
else
{
if (root)
curlevel = user_root;
else if (tmp)
curlevel = user_tmp;
else
continue;
}
if (curlevel <= level)
continue;
level = curlevel;
if ((winCheckMntOpt(ent, "binary") == NULL) &&
(winCheckMntOpt(ent, "binmode") == NULL))
binary = FALSE;
else
binary = TRUE;
}
if (endmntent(mnt) != 1)
{
ErrorF("endmntent failed");
return;
}
if (!binary)
winMsg(X_WARNING, "/tmp mounted in textmode\n");
}
#else
static void
winCheckMount(void)
{
}
#endif
#ifdef RELOCATE_PROJECTROOT
const char *
winGetBaseDir(void)
{
static BOOL inited = FALSE;
static char buffer[MAX_PATH];
if (!inited)
{
char *fendptr;
HMODULE module = GetModuleHandle(NULL);
DWORD size = GetModuleFileName(module, buffer, sizeof(buffer));
if (sizeof(buffer) > 0)
buffer[sizeof(buffer)-1] = 0;
fendptr = buffer + size;
while (fendptr > buffer)
{
if (*fendptr == '\\' || *fendptr == '/')
{
*fendptr = 0;
break;
}
fendptr--;
}
inited = TRUE;
}
return buffer;
}
#endif
static void
winFixupPaths (void)
{
BOOL changed_fontpath = FALSE;
MessageType font_from = X_DEFAULT;
#ifdef RELOCATE_PROJECTROOT
const char *basedir = winGetBaseDir();
size_t basedirlen = strlen(basedir);
#endif
#ifdef READ_FONTDIRS
{
FILE *fontdirs = fopen(ETCX11DIR "/font-dirs", "rt");
if (fontdirs != NULL)
{
char buffer[256];
int needs_sep = TRUE;
int comment_block = FALSE;
char *fontpath = strdup(defaultFontPath);
size_t size = strlen(fontpath);
while (!feof(fontdirs))
{
size_t blen;
char *hashchar;
char *str;
int has_eol = FALSE;
str = fgets(buffer, sizeof(buffer), fontdirs);
if (str == NULL)
break;
if (strchr(str, '\n') != NULL)
has_eol = TRUE;
if (comment_block)
{
*str = 0;
blen = 0;
if (has_eol)
comment_block = FALSE;
}
else
{
hashchar = strchr(str, '#');
if (hashchar != NULL)
{
*hashchar = 0;
if (!has_eol)
comment_block = TRUE;
}
}
while (*str == ' ' || *str == '\t')
str++;
blen = strlen(str);
while (blen > 0 && (str[blen-1] == ' ' ||
str[blen-1] == '\t' || str[blen-1] == '\n'))
{
str[--blen] = 0;
}
if (blen > 0)
{
size_t newsize = size + blen;
if (needs_sep)
newsize++;
if (fontpath == NULL)
fontpath = malloc(newsize+1);
else
fontpath = realloc(fontpath, newsize+1);
if (needs_sep)
{
fontpath[size] = ',';
size++;
needs_sep = FALSE;
}
if (has_eol)
needs_sep = TRUE;
strncpy(fontpath + size, str, blen);
fontpath[newsize] = 0;
size = newsize;
}
}
fclose(fontdirs);
defaultFontPath = strdup(fontpath);
free(fontpath);
changed_fontpath = TRUE;
font_from = X_CONFIG;
}
}
#endif
#ifdef RELOCATE_PROJECTROOT
{
const char *libx11dir = PROJECTROOT "/lib/X11";
size_t libx11dir_len = strlen(libx11dir);
char *newfp = NULL;
size_t newfp_len = 0;
const char *endptr, *ptr, *oldptr = defaultFontPath;
endptr = oldptr + strlen(oldptr);
ptr = strchr(oldptr, ',');
if (ptr == NULL)
ptr = endptr;
while (ptr != NULL)
{
size_t oldfp_len = (ptr - oldptr);
size_t newsize = oldfp_len;
char *newpath = malloc(newsize + 1);
strncpy(newpath, oldptr, newsize);
newpath[newsize] = 0;
if (strncmp(libx11dir, newpath, libx11dir_len) == 0)
{
char *compose;
newsize = newsize - libx11dir_len + basedirlen;
compose = malloc(newsize + 1);
strcpy(compose, basedir);
strncat(compose, newpath + libx11dir_len, newsize - basedirlen);
compose[newsize] = 0;
free(newpath);
newpath = compose;
}
oldfp_len = newfp_len;
if (oldfp_len > 0)
newfp_len ++;
newfp_len += newsize;
if (newfp == NULL)
newfp = malloc(newfp_len + 1);
else
newfp = realloc(newfp, newfp_len + 1);
if (oldfp_len > 0)
{
strcpy(newfp + oldfp_len, ",");
oldfp_len++;
}
strcpy(newfp + oldfp_len, newpath);
free(newpath);
if (*ptr == 0)
{
oldptr = ptr;
ptr = NULL;
} else
{
oldptr = ptr + 1;
ptr = strchr(oldptr, ',');
if (ptr == NULL)
ptr = endptr;
}
}
defaultFontPath = strdup(newfp);
free(newfp);
changed_fontpath = TRUE;
}
#endif
if (changed_fontpath)
winMsg (font_from, "FontPath set to \"%s\"\n", defaultFontPath);
#ifdef RELOCATE_PROJECTROOT
if (getenv("XKEYSYMDB") == NULL)
{
char buffer[MAX_PATH];
snprintf(buffer, sizeof(buffer), "XKEYSYMDB=%s\\XKeysymDB",
basedir);
buffer[sizeof(buffer)-1] = 0;
putenv(buffer);
}
if (getenv("XERRORDB") == NULL)
{
char buffer[MAX_PATH];
snprintf(buffer, sizeof(buffer), "XERRORDB=%s\\XErrorDB",
basedir);
buffer[sizeof(buffer)-1] = 0;
putenv(buffer);
}
if (getenv("XLOCALEDIR") == NULL)
{
char buffer[MAX_PATH];
snprintf(buffer, sizeof(buffer), "XLOCALEDIR=%s\\locale",
basedir);
buffer[sizeof(buffer)-1] = 0;
putenv(buffer);
}
if (getenv("HOME") == NULL)
{
HMODULE shfolder;
SHGETFOLDERPATHPROC shgetfolderpath = NULL;
char buffer[MAX_PATH + 5];
strncpy(buffer, "HOME=", 5);
shfolder = LoadLibrary("shfolder.dll");
if (shfolder == NULL)
shfolder = LoadLibrary("shell32.dll");
if (shfolder != NULL)
shgetfolderpath = (SHGETFOLDERPATHPROC)GetProcAddress(shfolder, "SHGetFolderPathA");
if (shgetfolderpath &&
shgetfolderpath(NULL, CSIDL_APPDATA|CSIDL_FLAG_CREATE, NULL, 0,
buffer + 5) == 0)
{
putenv(buffer);
} else
{
winMsg (X_ERROR, "Can not determine HOME directory\n");
}
if (shfolder != NULL)
FreeLibrary(shfolder);
}
if (!g_fLogFileChanged) {
static char buffer[MAX_PATH];
DWORD size = GetTempPath(sizeof(buffer), buffer);
if (size && size < sizeof(buffer))
{
snprintf(buffer + size, sizeof(buffer) - size,
"XWin.%s.log", display);
buffer[sizeof(buffer)-1] = 0;
g_pszLogFile = buffer;
winMsg (X_DEFAULT, "Logfile set to \"%s\"\n", g_pszLogFile);
}
}
{
static char xkbbasedir[MAX_PATH];
snprintf(xkbbasedir, sizeof(xkbbasedir), "%s\\xkb", basedir);
if (sizeof(xkbbasedir) > 0)
xkbbasedir[sizeof(xkbbasedir)-1] = 0;
XkbBaseDirectory = xkbbasedir;
XkbBinDirectory = basedir;
}
#endif
}
void
OsVendorInit (void)
{
winInitializeGlobals ();
winFixupPaths();
#ifdef DDXOSVERRORF
if (!OsVendorVErrorFProc)
OsVendorVErrorFProc = OsVendorVErrorF;
#endif
if (!g_fLogInited) {
g_fLogInited = TRUE;
g_pszLogFile = LogInit (g_pszLogFile, NULL);
}
LogSetParameter (XLOG_FLUSH, 1);
LogSetParameter (XLOG_VERBOSITY, g_iLogVerbose);
LogSetParameter (XLOG_FILE_VERBOSITY, g_iLogVerbose);
if (serverGeneration == 1)
winLogVersionInfo ();
winCheckMount();
if (g_iNumScreens == 0)
{
winDebug ("OsVendorInit - Creating default screen 0\n");
winInitializeScreens(1);
g_ScreenInfo[0].fExplicitScreen = TRUE;
}
}
static void
winUseMsg (void)
{
ErrorF("\n");
ErrorF("\n");
ErrorF(EXECUTABLE_NAME " Device Dependent Usage:\n");
ErrorF("\n");
#ifdef XWIN_CLIPBOARD
ErrorF ("-[no]clipboard\n"
"\tEnable [disable] the clipboard integration. Default is enabled.\n");
#endif
ErrorF ("-clipupdates num_boxes\n"
"\tUse a clipping region to constrain shadow update blits to\n"
"\tthe updated region when num_boxes, or more, are in the\n"
"\tupdated region.\n");
#ifdef XWIN_XF86CONFIG
ErrorF ("-config\n"
"\tSpecify a configuration file.\n");
ErrorF ("-configdir\n"
"\tSpecify a configuration directory.\n");
#endif
ErrorF ("-depth bits_per_pixel\n"
"\tSpecify an optional bitdepth to use in fullscreen mode\n"
"\twith a DirectDraw engine.\n");
ErrorF ("-emulate3buttons [timeout]\n"
"\tEmulate 3 button mouse with an optional timeout in\n"
"\tmilliseconds.\n");
#ifdef XWIN_EMULATEPSEUDO
ErrorF ("-emulatepseudo\n"
"\tCreate a depth 8 PseudoColor visual when running in\n"
"\tdepths 15, 16, 24, or 32, collectively known as TrueColor\n"
"\tdepths. The PseudoColor visual does not have correct colors,\n"
"\tand it may crash, but it at least allows you to run your\n"
"\tapplication in TrueColor modes.\n");
#endif
ErrorF ("-engine engine_type_id\n"
"\tOverride the server's automatically selected engine type:\n"
"\t\t1 - Shadow GDI\n"
"\t\t2 - Shadow DirectDraw\n"
"\t\t4 - Shadow DirectDraw4 Non-Locking\n"
#ifdef XWIN_PRIMARYFB
"\t\t8 - Primary DirectDraw - obsolete\n"
#endif
#ifdef XWIN_NATIVEGDI
"\t\t16 - Native GDI - experimental\n"
#endif
);
ErrorF ("-fullscreen\n"
"\tRun the server in fullscreen mode.\n");
ErrorF ("-ignoreinput\n"
"\tIgnore keyboard and mouse input.\n");
#ifdef XWIN_MULTIWINDOWEXTWM
ErrorF ("-internalwm\n"
"\tRun the internal window manager.\n");
#endif
#ifdef XWIN_XF86CONFIG
ErrorF ("-keyboard\n"
"\tSpecify a keyboard device from the configuration file.\n");
#endif
ErrorF ("-[no]keyhook\n"
"\tGrab special Windows keypresses like Alt-Tab or the Menu "
"key.\n");
ErrorF ("-lesspointer\n"
"\tHide the windows mouse pointer when it is over any\n"
"\t" EXECUTABLE_NAME " window. This prevents ghost cursors appearing when\n"
"\tthe Windows cursor is drawn on top of the X cursor\n");
ErrorF ("-logfile filename\n"
"\tWrite log messages to <filename>.\n");
ErrorF ("-logverbose verbosity\n"
"\tSet the verbosity of log messages. [NOTE: Only a few messages\n"
"\trespect the settings yet]\n"
"\t\t0 - only print fatal error.\n"
"\t\t1 - print additional configuration information.\n"
"\t\t2 - print additional runtime information [default].\n"
"\t\t3 - print debugging and tracing information.\n");
ErrorF ("-[no]multimonitors or -[no]multiplemonitors\n"
"\tUse the entire virtual screen if multiple\n"
"\tmonitors are present.\n");
#ifdef XWIN_MULTIWINDOW
ErrorF ("-multiwindow\n"
"\tRun the server in multi-window mode.\n");
#endif
#ifdef XWIN_MULTIWINDOWEXTWM
ErrorF ("-mwextwm\n"
"\tRun the server in multi-window external window manager mode.\n");
#endif
ErrorF ("-nodecoration\n"
"\tDo not draw a window border, title bar, etc. Windowed\n"
"\tmode only.\n");
#ifdef XWIN_CLIPBOARD
ErrorF ("-nounicodeclipboard\n"
"\tDo not use Unicode clipboard even if on a NT-based platform.\n");
#endif
ErrorF ("-refresh rate_in_Hz\n"
"\tSpecify an optional refresh rate to use in fullscreen mode\n"
"\twith a DirectDraw engine.\n");
ErrorF ("-resize=none|scrollbars|randr"
"\tIn windowed mode, [don't] allow resizing of the window. 'scrollbars'\n"
"\tmode gives the window scrollbars as needed, 'randr' mode uses the RANR\n"
"\textension to resize the X screen.\n");
ErrorF ("-rootless\n"
"\tRun the server in rootless mode.\n");
ErrorF ("-screen scr_num [width height [x y] | [[WxH[+X+Y]][@m]] ]\n"
"\tEnable screen scr_num and optionally specify a width and\n"
"\theight and initial position for that screen. Additionally\n"
"\ta monitor number can be specified to start the server on,\n"
"\tat which point, all coordinates become relative to that\n"
"\tmonitor (Not for Windows NT4 and 95). Examples:\n"
"\t -screen 0 800x600+100+100@2 ; 2nd monitor offset 100,100 size 800x600\n"
"\t -screen 0 1024x768@3 ; 3rd monitor size 1024x768\n"
"\t -screen 0 @1 ; on 1st monitor using its full resolution (the default)\n");
ErrorF ("-silent-dup-error\n"
"\tIf another instance of " EXECUTABLE_NAME " with the same display number is running\n"
"\texit silently and don't display any error message.\n");
ErrorF ("-swcursor\n"
"\tDisable the usage of the Windows cursor and use the X11 software\n"
"\tcursor instead.\n");
ErrorF ("-[no]trayicon\n"
"\tDo not create a tray icon. Default is to create one\n"
"\ticon per screen. You can globally disable tray icons with\n"
"\t-notrayicon, then enable it for specific screens with\n"
"\t-trayicon for those screens.\n");
ErrorF ("-[no]unixkill\n"
"\tCtrl+Alt+Backspace exits the X Server.\n");
#ifdef XWIN_GLX_WINDOWS
ErrorF ("-[no]wgl\n"
"\tEnable the GLX extension to use the native Windows WGL interface for accelerated OpenGL\n");
#endif
ErrorF ("-[no]winkill\n"
"\tAlt+F4 exits the X Server.\n");
ErrorF ("-xkblayout XKBLayout\n"
"\tEquivalent to XKBLayout in XF86Config files.\n"
"\tFor example: -xkblayout de\n");
ErrorF ("-xkbmodel XKBModel\n"
"\tEquivalent to XKBModel in XF86Config files.\n");
ErrorF ("-xkboptions XKBOptions\n"
"\tEquivalent to XKBOptions in XF86Config files.\n");
ErrorF ("-xkbrules XKBRules\n"
"\tEquivalent to XKBRules in XF86Config files.\n");
ErrorF ("-xkbvariant XKBVariant\n"
"\tEquivalent to XKBVariant in XF86Config files.\n"
"\tFor example: -xkbvariant nodeadkeys\n");
}
void
ddxUseMsg(void)
{
g_fSilentFatalError = TRUE;
winUseMsg();
if (!g_fLogInited) {
g_pszLogFile = LogInit (g_pszLogFile, NULL);
g_fLogInited = TRUE;
}
LogClose ();
if (!g_fNoHelpMessageBox)
winMessageBoxF ("The " PROJECT_NAME " help text has been printed to "
"%s.\n"
"Please open %s to read the help text.\n",
MB_ICONINFORMATION, g_pszLogFile, g_pszLogFile);
}
void
InitOutput (ScreenInfo *screenInfo, int argc, char *argv[])
{
int i;
winLogCommandLine (argc, argv);
#if CYGDEBUG
winDebug ("InitOutput\n");
#endif
if (serverGeneration == 1 && !winValidateArgs ())
{
FatalError ("InitOutput - Invalid command-line arguments found. "
"Exiting.\n");
}
if (serverGeneration == 1 && !winCheckDisplayNumber ())
{
if (g_fSilentDupError)
g_fSilentFatalError = TRUE;
FatalError ("InitOutput - Duplicate invocation on display "
"number: %s. Exiting.\n", display);
}
#ifdef XWIN_XF86CONFIG
if (!winReadConfigfile ())
winErrorFVerb (1, "InitOutput - Error reading config file\n");
#else
winMsg(X_INFO, "xorg.conf is not supported\n");
winMsg(X_INFO, "See http://x.cygwin.com/docs/faq/cygwin-x-faq.html "
"for more information\n");
winConfigFiles ();
#endif
LoadPreferences();
screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
screenInfo->numPixmapFormats = NUMFORMATS;
for (i = 0; i < NUMFORMATS; i++)
{
screenInfo->formats[i] = g_PixmapFormats[i];
}
winGetDDProcAddresses ();
winDetectSupportedEngines ();
g_hmodCommonControls = LoadLibraryEx ("comctl32.dll", NULL, 0);
g_fpTrackMouseEvent = GetProcAddress (g_hmodCommonControls,
"_TrackMouseEvent");
if (g_fpTrackMouseEvent == NULL)
{
winErrorFVerb (1, "InitOutput - Could not get pointer to function\n"
"\t_TrackMouseEvent in comctl32.dll. Try installing\n"
"\tInternet Explorer 3.0 or greater if you have not\n"
"\talready.\n");
FreeLibrary (g_hmodCommonControls);
g_hmodCommonControls = NULL;
g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;
}
g_hInstance = GetModuleHandle (NULL);
for (i = 0; i < g_iNumScreens; ++i)
{
if (-1 == AddScreen (winScreenInit, argc, argv))
{
FatalError ("InitOutput - Couldn't add screen %d", i);
}
}
#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
if (g_fXdmcpEnabled || g_fAuthEnabled)
winGenerateAuthorization ();
if (1 == serverGeneration)
{
setlocale (LC_ALL, "");
}
#endif
#if CYGDEBUG || YES
winDebug ("InitOutput - Returning.\n");
#endif
}
static Bool
winCheckDisplayNumber (void)
{
int nDisp;
HANDLE mutex;
char name[MAX_PATH];
char * pszPrefix = '\0';
OSVERSIONINFO osvi = {0};
nDisp = atoi (display);
if (nDisp < 0 || nDisp > 65535)
{
ErrorF ("winCheckDisplayNumber - Bad display number: %d\n", nDisp);
return FALSE;
}
name[0] = '\0';
osvi.dwOSVersionInfoSize = sizeof (osvi);
GetVersionEx (&osvi);
if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT
&& osvi.dwMajorVersion >= 5)
{
pszPrefix = "Global\\";
}
snprintf (name, sizeof(name), "%sCYGWINX_DISPLAY:%d", pszPrefix, nDisp);
mutex = CreateMutex (NULL, FALSE, name);
if (!mutex)
{
LPVOID lpMsgBuf;
FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError (),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL);
ErrorF ("winCheckDisplayNumber - CreateMutex failed: %s\n",
(LPSTR)lpMsgBuf);
LocalFree (lpMsgBuf);
return FALSE;
}
if (GetLastError () == ERROR_ALREADY_EXISTS)
{
ErrorF ("winCheckDisplayNumber - "
PROJECT_NAME " is already running on display %d\n",
nDisp);
return FALSE;
}
return TRUE;
}