X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2739d4f0528b324700973169b67750107568bf12..950905affdfa9041316f82308e1a11e82c783070:/src/msw/utils.cpp diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp index bc79244d0b..c0efa166b7 100644 --- a/src/msw/utils.cpp +++ b/src/msw/utils.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: msw/utils.cpp +// Name: src/msw/utils.cpp // Purpose: Various utilities // Author: Julian Smart // Modified by: @@ -31,19 +31,31 @@ #include "wx/log.h" #endif //WX_PRECOMP +#include "wx/msw/registry.h" #include "wx/apptrait.h" +#include "wx/dynlib.h" +#include "wx/dynload.h" +#include "wx/scopeguard.h" + +#include "wx/confbase.h" // for wxExpandEnvVars() #include "wx/msw/private.h" // includes +#include "wx/msw/missing.h" // for CHARSET_HANGUL + +#if defined(__CYGWIN__) + //CYGWIN gives annoying warning about runtime stuff if we don't do this +# define USE_SYS_TYPES_FD_SET +# include +#endif -#ifdef __GNUWIN32_OLD__ +// Doesn't work with Cygwin at present +#if wxUSE_SOCKETS && (defined(__GNUWIN32_OLD__) || defined(__WXWINCE__) || defined(__CYGWIN32__)) // apparently we need to include winsock.h to get WSADATA and other stuff // used in wxGetFullHostName() with the old mingw32 versions #include #endif -#include "wx/timer.h" - -#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) +#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__) #include #ifndef __MWERKS__ @@ -73,7 +85,7 @@ #include #endif // USE_NET_API -#if defined(__WIN32__) && !defined(__WXMICROWIN__) +#if defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__) #ifndef __UNIX__ #include #endif @@ -89,19 +101,21 @@ #endif #endif +// For wxKillAllChildren +#include + // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // In the WIN.INI file +#if (!defined(USE_NET_API) && !defined(__WXWINCE__)) || defined(__WXMICROWIN__) static const wxChar WX_SECTION[] = wxT("wxWindows"); -static const wxChar eUSERNAME[] = wxT("UserName"); +#endif -// these are only used under Win16 -#if !defined(__WIN32__) && !defined(__WXMICROWIN__) -static const wxChar eHOSTNAME[] = wxT("HostName"); -static const wxChar eUSERID[] = wxT("UserId"); -#endif // !Win32 +#if (!defined(USE_NET_API) && !defined(__WXWINCE__)) +static const wxChar eUSERNAME[] = wxT("UserName"); +#endif // ============================================================================ // implementation @@ -112,18 +126,22 @@ static const wxChar eUSERID[] = wxT("UserId"); // ---------------------------------------------------------------------------- // Get hostname only (without domain name) -bool wxGetHostName(wxChar *buf, int maxSize) +bool wxGetHostName(wxChar *WXUNUSED_IN_WINCE(buf), + int WXUNUSED_IN_WINCE(maxSize)) { -#if defined(__WIN32__) && !defined(__WXMICROWIN__) +#if defined(__WXWINCE__) + // TODO-CE + return false; +#elif defined(__WIN32__) && !defined(__WXMICROWIN__) DWORD nSize = maxSize; if ( !::GetComputerName(buf, &nSize) ) { wxLogLastError(wxT("GetComputerName")); - return FALSE; + return false; } - return TRUE; + return true; #else wxChar *sysname; const wxChar *default_host = wxT("noname"); @@ -133,68 +151,102 @@ bool wxGetHostName(wxChar *buf, int maxSize) } else wxStrncpy(buf, sysname, maxSize - 1); buf[maxSize] = wxT('\0'); - return *buf ? TRUE : FALSE; + return *buf ? true : false; #endif } // get full hostname (with domain name if possible) bool wxGetFullHostName(wxChar *buf, int maxSize) { -#if defined(__WIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__)) +#if !defined( __WXMICROWIN__) && wxUSE_DYNAMIC_LOADER && wxUSE_SOCKETS // TODO should use GetComputerNameEx() when available - // the idea is that if someone had set wxUSE_SOCKETS to 0 the code - // shouldn't use winsock.dll (a.k.a. ws2_32.dll) at all so only use this - // code if we link with it anyhow -#if wxUSE_SOCKETS + // we don't want to always link with Winsock DLL as we might not use it at + // all, so load it dynamically here if needed (and don't complain if it is + // missing, we handle this) + wxLogNull noLog; - WSADATA wsa; - if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 ) + wxDynamicLibrary dllWinsock(_T("ws2_32.dll"), wxDL_VERBATIM); + if ( dllWinsock.IsLoaded() ) { - wxString host; - char bufA[256]; - if ( gethostname(bufA, WXSIZEOF(bufA)) == 0 ) + typedef int (PASCAL *WSAStartup_t)(WORD, WSADATA *); + typedef int (PASCAL *gethostname_t)(char *, int); + typedef hostent* (PASCAL *gethostbyname_t)(const char *); + typedef hostent* (PASCAL *gethostbyaddr_t)(const char *, int , int); + typedef int (PASCAL *WSACleanup_t)(void); + + #define LOAD_WINSOCK_FUNC(func) \ + func ## _t \ + pfn ## func = (func ## _t)dllWinsock.GetSymbol(_T(#func)) + + LOAD_WINSOCK_FUNC(WSAStartup); + + WSADATA wsa; + if ( pfnWSAStartup && pfnWSAStartup(MAKEWORD(1, 1), &wsa) == 0 ) { - // gethostname() won't usually include the DNS domain name, for - // this we need to work a bit more - if ( !strchr(bufA, '.') ) - { - struct hostent *pHostEnt = gethostbyname(bufA); + LOAD_WINSOCK_FUNC(gethostname); - if ( pHostEnt ) + wxString host; + if ( pfngethostname ) + { + char bufA[256]; + if ( pfngethostname(bufA, WXSIZEOF(bufA)) == 0 ) { - // Windows will use DNS internally now - pHostEnt = gethostbyaddr(pHostEnt->h_addr, 4, AF_INET); - } + // gethostname() won't usually include the DNS domain name, + // for this we need to work a bit more + if ( !strchr(bufA, '.') ) + { + LOAD_WINSOCK_FUNC(gethostbyname); - if ( pHostEnt ) - { - host = wxString::FromAscii(pHostEnt->h_name); + struct hostent *pHostEnt = pfngethostbyname + ? pfngethostbyname(bufA) + : NULL; + + if ( pHostEnt ) + { + // Windows will use DNS internally now + LOAD_WINSOCK_FUNC(gethostbyaddr); + + pHostEnt = pfngethostbyaddr + ? pfngethostbyaddr(pHostEnt->h_addr, + 4, AF_INET) + : NULL; + } + + if ( pHostEnt ) + { + host = wxString::FromAscii(pHostEnt->h_name); + } + } } } - } - WSACleanup(); + LOAD_WINSOCK_FUNC(WSACleanup); + if ( pfnWSACleanup ) + pfnWSACleanup(); - if ( !host.empty() ) - { - wxStrncpy(buf, host, maxSize); - return TRUE; + if ( !host.empty() ) + { + wxStrncpy(buf, host, maxSize); + + return true; + } } } - -#endif // wxUSE_SOCKETS - -#endif // Win32 +#endif // !__WXMICROWIN__ return wxGetHostName(buf, maxSize); } // Get user ID e.g. jacs -bool wxGetUserId(wxChar *buf, int maxSize) +bool wxGetUserId(wxChar *WXUNUSED_IN_WINCE(buf), + int WXUNUSED_IN_WINCE(maxSize)) { -#if defined(__WIN32__) && !defined(__win32s__) && !defined(__WXMICROWIN__) +#if defined(__WXWINCE__) + // TODO-CE + return false; +#elif defined(__WIN32__) && !defined(__WXMICROWIN__) DWORD nSize = maxSize; if ( ::GetUserName(buf, &nSize) == 0 ) { @@ -203,21 +255,21 @@ bool wxGetUserId(wxChar *buf, int maxSize) if ( res == 0 ) { // not found - return FALSE; + return false; } } - return TRUE; -#else // Win16 or Win32s + return true; +#else // __WXMICROWIN__ wxChar *user; const wxChar *default_id = wxT("anonymous"); // Can't assume we have NIS (PC-NFS) or some other ID daemon // So we ... - if ( (user = wxGetenv(wxT("USER"))) == NULL && - (user = wxGetenv(wxT("LOGNAME"))) == NULL ) + if ( (user = wxGetenv(wxT("USER"))) == NULL && + (user = wxGetenv(wxT("LOGNAME"))) == NULL ) { - // Use wxWindows configuration data (comming soon) + // Use wxWidgets configuration data (comming soon) GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1); } else @@ -225,115 +277,116 @@ bool wxGetUserId(wxChar *buf, int maxSize) wxStrncpy(buf, user, maxSize - 1); } - return *buf ? TRUE : FALSE; + return *buf ? true : false; #endif } // Get user name e.g. Julian Smart bool wxGetUserName(wxChar *buf, int maxSize) { -#if wxUSE_PENWINDOWS && !defined(__WATCOMC__) && !defined(__GNUWIN32__) - extern HANDLE g_hPenWin; // PenWindows Running? - if (g_hPenWin) + wxCHECK_MSG( buf && ( maxSize > 0 ), false, + _T("empty buffer in wxGetUserName") ); +#if defined(__WXWINCE__) + wxLogNull noLog; + wxRegKey key(wxRegKey::HKCU, wxT("ControlPanel\\Owner")); + if(!key.Open(wxRegKey::Read)) + return false; + wxString name; + if(!key.QueryValue(wxT("Owner"),name)) + return false; + wxStrncpy(buf, name.c_str(), maxSize-1); + buf[maxSize-1] = _T('\0'); + return true; +#elif defined(USE_NET_API) + CHAR szUserName[256]; + if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) ) + return false; + + // TODO how to get the domain name? + CHAR *szDomain = ""; + + // the code is based on the MSDN example (also see KB article Q119670) + WCHAR wszUserName[256]; // Unicode user name + WCHAR wszDomain[256]; + LPBYTE ComputerName; + + USER_INFO_2 *ui2; // User structure + + // Convert ANSI user name and domain to Unicode + MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1, + wszUserName, WXSIZEOF(wszUserName) ); + MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1, + wszDomain, WXSIZEOF(wszDomain) ); + + // Get the computer name of a DC for the domain. + if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success ) { - // PenWindows Does have a user concept! - // Get the current owner of the recognizer - GetPrivateProfileString("Current", "User", default_name, wxBuffer, maxSize - 1, "PENWIN.INI"); - strncpy(buf, wxBuffer, maxSize - 1); - } - else -#endif - { -#ifdef USE_NET_API - CHAR szUserName[256]; - if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) ) - return FALSE; - - // TODO how to get the domain name? - CHAR *szDomain = ""; + wxLogError(wxT("Can not find domain controller")); - // the code is based on the MSDN example (also see KB article Q119670) - WCHAR wszUserName[256]; // Unicode user name - WCHAR wszDomain[256]; - LPBYTE ComputerName; - - USER_INFO_2 *ui2; // User structure + goto error; + } - // Convert ANSI user name and domain to Unicode - MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1, - wszUserName, WXSIZEOF(wszUserName) ); - MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1, - wszDomain, WXSIZEOF(wszDomain) ); + // Look up the user on the DC + NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName, + (LPWSTR)&wszUserName, + 2, // level - we want USER_INFO_2 + (LPBYTE *) &ui2 ); + switch ( status ) + { + case NERR_Success: + // ok + break; - // Get the computer name of a DC for the domain. - if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success ) - { - wxLogError(wxT("Can not find domain controller")); + case NERR_InvalidComputer: + wxLogError(wxT("Invalid domain controller name.")); goto error; - } - - // Look up the user on the DC - NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName, - (LPWSTR)&wszUserName, - 2, // level - we want USER_INFO_2 - (LPBYTE *) &ui2 ); - switch ( status ) - { - case NERR_Success: - // ok - break; - case NERR_InvalidComputer: - wxLogError(wxT("Invalid domain controller name.")); + case NERR_UserNotFound: + wxLogError(wxT("Invalid user name '%s'."), szUserName); - goto error; - - case NERR_UserNotFound: - wxLogError(wxT("Invalid user name '%s'."), szUserName); - - goto error; + goto error; - default: - wxLogSysError(wxT("Can't get information about user")); + default: + wxLogSysError(wxT("Can't get information about user")); - goto error; - } + goto error; + } - // Convert the Unicode full name to ANSI - WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1, - buf, maxSize, NULL, NULL ); + // Convert the Unicode full name to ANSI + WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1, + buf, maxSize, NULL, NULL ); - return TRUE; + return true; error: - wxLogError(wxT("Couldn't look up full user name.")); + wxLogError(wxT("Couldn't look up full user name.")); - return FALSE; + return false; #else // !USE_NET_API - // Could use NIS, MS-Mail or other site specific programs - // Use wxWindows configuration data - bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxT(""), buf, maxSize - 1) != 0; - if ( !ok ) - { - ok = wxGetUserId(buf, maxSize); - } + // Could use NIS, MS-Mail or other site specific programs + // Use wxWidgets configuration data + bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxEmptyString, buf, maxSize - 1) != 0; + if ( !ok ) + { + ok = wxGetUserId(buf, maxSize); + } - if ( !ok ) - { - wxStrncpy(buf, wxT("Unknown User"), maxSize); - } -#endif // Win32/16 + if ( !ok ) + { + wxStrncpy(buf, wxT("Unknown User"), maxSize); } - return TRUE; + return true; +#endif // Win32/16 } const wxChar* wxGetHomeDir(wxString *pstr) { - wxString& strDir = *pstr; + wxString& strDir = *pstr; - #if defined(__UNIX__) + // first branch is for Cygwin +#if defined(__UNIX__) && !defined(__WINE__) const wxChar *szHome = wxGetenv("HOME"); if ( szHome == NULL ) { // we're homeless... @@ -348,32 +401,33 @@ const wxChar* wxGetHomeDir(wxString *pstr) strDir << wxT('/'); #ifdef __CYGWIN__ - // Cygwin returns unix type path but that does not work well - static wxChar windowsPath[MAX_PATH]; - cygwin_conv_to_full_win32_path(strDir, windowsPath); - strDir = windowsPath; + // Cygwin returns unix type path but that does not work well + static wxChar windowsPath[MAX_PATH]; + cygwin_conv_to_full_win32_path(strDir, windowsPath); + strDir = windowsPath; #endif - #else // Windows - #ifdef __WIN32__ - strDir.clear(); +#elif defined(__WXWINCE__) + strDir = wxT("\\"); +#else + strDir.clear(); - // If we have a valid HOME directory, as is used on many machines that - // have unix utilities on them, we should use that. - const wxChar *szHome = wxGetenv(wxT("HOME")); + // If we have a valid HOME directory, as is used on many machines that + // have unix utilities on them, we should use that. + const wxChar *szHome = wxGetenv(wxT("HOME")); - if ( szHome != NULL ) - { + if ( szHome != NULL ) + { strDir = szHome; - } - else // no HOME, try HOMEDRIVE/PATH - { - szHome = wxGetenv(wxT("HOMEDRIVE")); - if ( szHome != NULL ) + } + else // no HOME, try HOMEDRIVE/PATH + { + szHome = wxGetenv(wxT("HOMEDRIVE")); + if ( szHome != NULL ) strDir << szHome; - szHome = wxGetenv(wxT("HOMEPATH")); + szHome = wxGetenv(wxT("HOMEPATH")); - if ( szHome != NULL ) - { + if ( szHome != NULL ) + { strDir << szHome; // the idea is that under NT these variables have default values @@ -383,45 +437,34 @@ const wxChar* wxGetHomeDir(wxString *pstr) // to set HOMEPATH to something other than "\\", we suppose that he // knows what he is doing and use the supplied value. if ( wxStrcmp(szHome, wxT("\\")) == 0 ) - strDir.clear(); - } - } + strDir.clear(); + } + } - if ( strDir.empty() ) - { - // If we have a valid USERPROFILE directory, as is the case in - // Windows NT, 2000 and XP, we should use that as our home directory. - szHome = wxGetenv(wxT("USERPROFILE")); + if ( strDir.empty() ) + { + // If we have a valid USERPROFILE directory, as is the case in + // Windows NT, 2000 and XP, we should use that as our home directory. + szHome = wxGetenv(wxT("USERPROFILE")); - if ( szHome != NULL ) + if ( szHome != NULL ) strDir = szHome; - } - - if ( !strDir.empty() ) - { - return strDir.c_str(); - } - //else: fall back to the prograrm directory - #else // Win16 - // Win16 has no idea about home, so use the executable directory instead - #endif // WIN16/32 - - // 260 was taken from windef.h - #ifndef MAX_PATH - #define MAX_PATH 260 - #endif - - wxString strPath; - ::GetModuleFileName(::GetModuleHandle(NULL), - strPath.GetWriteBuf(MAX_PATH), MAX_PATH); - strPath.UngetWriteBuf(); - - // extract the dir name - wxSplitPath(strPath, &strDir, NULL, NULL); + } - #endif // UNIX/Win + if ( !strDir.empty() ) + { + // sometimes the value of HOME may be "%USERPROFILE%", so reexpand the + // value once again, it shouldn't hurt anyhow + strDir = wxExpandEnvVars(strDir); + } + else // fall back to the program directory + { + // extract the directory component of the program file name + wxSplitPath(wxGetFullModuleName(), &strDir, NULL, NULL); + } +#endif // UNIX/Win - return strDir.c_str(); + return strDir.c_str(); } wxChar *wxGetUserHome(const wxString& WXUNUSED(user)) @@ -434,36 +477,16 @@ wxChar *wxGetUserHome(const wxString& WXUNUSED(user)) return (wxChar *)wxGetHomeDir(&s_home); } -bool wxDirExists(const wxString& dir) -{ -#ifdef __WXMICROWIN__ - return wxPathExist(dir); -#elif defined(__WIN32__) - DWORD attribs = GetFileAttributes(dir); - return ((attribs != (DWORD)-1) && (attribs & FILE_ATTRIBUTE_DIRECTORY)); -#else // Win16 - #ifdef __BORLANDC__ - struct ffblk fileInfo; - #else - struct find_t fileInfo; - #endif - // In Borland findfirst has a different argument - // ordering from _dos_findfirst. But _dos_findfirst - // _should_ be ok in both MS and Borland... why not? - #ifdef __BORLANDC__ - return (findfirst(dir, &fileInfo, _A_SUBDIR) == 0 && - (fileInfo.ff_attrib & _A_SUBDIR) != 0); - #else - return (_dos_findfirst(dir, _A_SUBDIR, &fileInfo) == 0) && - ((fileInfo.attrib & _A_SUBDIR) != 0); - #endif -#endif // Win32/16 -} - -bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) +bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path), + wxDiskspaceSize_t *WXUNUSED_IN_WINCE(pTotal), + wxDiskspaceSize_t *WXUNUSED_IN_WINCE(pFree)) { +#ifdef __WXWINCE__ + // TODO-CE + return false; +#else if ( path.empty() ) - return FALSE; + return false; // old w32api don't have ULARGE_INTEGER #if defined(__WIN32__) && \ @@ -491,14 +514,14 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) ULARGE_INTEGER bytesFree, bytesTotal; // may pass the path as is, GetDiskFreeSpaceEx() is smart enough - if ( !pGetDiskFreeSpaceEx(path, + if ( !pGetDiskFreeSpaceEx(path.fn_str(), &bytesFree, &bytesTotal, NULL) ) { wxLogLastError(_T("GetDiskFreeSpaceEx")); - return FALSE; + return false; } // ULARGE_INTEGER is a union of a 64 bit value and a struct containing @@ -511,12 +534,20 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) #endif if ( pTotal ) { - *pTotal = wxLongLong(UL(bytesTotal).HighPart, UL(bytesTotal).LowPart); +#if wxUSE_LONGLONG + *pTotal = wxDiskspaceSize_t(UL(bytesTotal).HighPart, UL(bytesTotal).LowPart); +#else + *pTotal = wxDiskspaceSize_t(UL(bytesTotal).LowPart); +#endif } if ( pFree ) { +#if wxUSE_LONGLONG *pFree = wxLongLong(UL(bytesFree).HighPart, UL(bytesFree).LowPart); +#else + *pFree = wxDiskspaceSize_t(UL(bytesFree).LowPart); +#endif } } else @@ -533,7 +564,7 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) // FIXME: this is wrong, we should extract the root drive from path // instead, but this is the job for wxFileName... - if ( !::GetDiskFreeSpace(path, + if ( !::GetDiskFreeSpace(path.fn_str(), &lSectorsPerCluster, &lBytesPerSector, &lNumberOfFreeClusters, @@ -541,10 +572,10 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) { wxLogLastError(_T("GetDiskFreeSpace")); - return FALSE; + return false; } - wxLongLong lBytesPerCluster = lSectorsPerCluster; + wxDiskspaceSize_t lBytesPerCluster = (wxDiskspaceSize_t) lSectorsPerCluster; lBytesPerCluster *= lBytesPerSector; if ( pTotal ) @@ -560,63 +591,71 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree) } } - return TRUE; + return true; +#endif + // __WXWINCE__ } // ---------------------------------------------------------------------------- // env vars // ---------------------------------------------------------------------------- -bool wxGetEnv(const wxString& var, wxString *value) +bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var), + wxString *WXUNUSED_IN_WINCE(value)) { -#ifdef __WIN16__ - const wxChar* ret = wxGetenv(var); - if ( !ret ) - return FALSE; - - if ( value ) - { - *value = ret; - } - - return TRUE; +#ifdef __WXWINCE__ + // no environment variables under CE + return false; #else // Win32 // first get the size of the buffer - DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0); + DWORD dwRet = ::GetEnvironmentVariable(var.wx_str(), NULL, 0); if ( !dwRet ) { // this means that there is no such variable - return FALSE; + return false; } if ( value ) { - (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet); - value->UngetWriteBuf(); + (void)::GetEnvironmentVariable(var.wx_str(), + wxStringBuffer(*value, dwRet), + dwRet); } - return TRUE; -#endif // Win16/32 + return true; +#endif // WinCE/32 } -bool wxSetEnv(const wxString& var, const wxChar *value) +bool wxDoSetEnv(const wxString& WXUNUSED_IN_WINCE(var), + const wxChar *WXUNUSED_IN_WINCE(value)) { // some compilers have putenv() or _putenv() or _wputenv() but it's better // to always use Win32 function directly instead of dealing with them -#if defined(__WIN32__) - if ( !::SetEnvironmentVariable(var, value) ) +#ifdef __WXWINCE__ + // no environment variables under CE + return false; +#else + if ( !::SetEnvironmentVariable(var.wx_str(), value) ) { wxLogLastError(_T("SetEnvironmentVariable")); - return FALSE; + return false; } - return TRUE; -#else // no way to set env vars - return FALSE; + return true; #endif } +bool wxSetEnv(const wxString& variable, const wxString& value) +{ + return wxDoSetEnv(variable, value.wx_str()); +} + +bool wxUnsetEnv(const wxString& variable) +{ + return wxDoSetEnv(variable, NULL); +} + // ---------------------------------------------------------------------------- // process management // ---------------------------------------------------------------------------- @@ -656,8 +695,13 @@ BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam) return TRUE; } -int wxKill(long pid, wxSignal sig, wxKillError *krc) +int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc); + +int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags) { + if (flags & wxKILL_CHILDREN) + wxKillAllChildren(pid, sig, krc); + // get the process handle to operate on HANDLE hProcess = ::OpenProcess(SYNCHRONIZE | PROCESS_TERMINATE | @@ -668,20 +712,20 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) { if ( krc ) { - if ( ::GetLastError() == ERROR_ACCESS_DENIED ) - { - *krc = wxKILL_ACCESS_DENIED; - } - else - { - *krc = wxKILL_NO_PROCESS; - } + // recognize wxKILL_ACCESS_DENIED as special because this doesn't + // mean that the process doesn't exist and this is important for + // wxProcess::Exists() + *krc = ::GetLastError() == ERROR_ACCESS_DENIED + ? wxKILL_ACCESS_DENIED + : wxKILL_NO_PROCESS; } return -1; } - bool ok = TRUE; + wxON_BLOCK_EXIT1(::CloseHandle, hProcess); + + bool ok = true; switch ( sig ) { case wxSIGKILL: @@ -697,13 +741,15 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) *krc = wxKILL_ERROR; } - ok = FALSE; + ok = false; } break; case wxSIGNONE: // do nothing, we just want to test for process existence - break; + if ( krc ) + *krc = wxKILL_OK; + return 0; default: // any other signal means "terminate" @@ -712,7 +758,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) params.pid = (DWORD)pid; // EnumWindows() has nice semantics: it returns 0 if it found - // something or if an error occured and non zero if it + // something or if an error occurred and non zero if it // enumerated all the window if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)¶ms) ) { @@ -721,7 +767,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) { // tell the app to close // - // NB: this is the harshest way, the app won't have + // NB: this is the harshest way, the app won't have an // opportunity to save any files, for example, but // this is probably what we want here. If not we // can also use SendMesageTimeout(WM_CLOSE) @@ -734,24 +780,21 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) { wxLogLastError(_T("EnumWindows")); - ok = FALSE; + ok = false; } } else // no windows for this PID { if ( krc ) - { *krc = wxKILL_ERROR; - } - ok = FALSE; + ok = false; } } } // the return code - DWORD rc; - + DWORD rc wxDUMMY_INITIALIZE(0); if ( ok ) { // as we wait for a short time, we can use just WaitForSingleObject() @@ -776,50 +819,124 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc) case WAIT_TIMEOUT: if ( krc ) - { *krc = wxKILL_ERROR; - } rc = STILL_ACTIVE; break; } } - else // !ok - { - // just to suppress the warnings about uninitialized variable - rc = 0; - } - ::CloseHandle(hProcess); // the return code is the same as from Unix kill(): 0 if killed // successfully or -1 on error - // - // be careful to interpret rc correctly: for wxSIGNONE we return success if - // the process exists, for all the other sig values -- if it doesn't - if ( ok && - ((sig == wxSIGNONE) == (rc == STILL_ACTIVE)) ) - { - if ( krc ) - { - *krc = wxKILL_OK; - } + if ( !ok || rc == STILL_ACTIVE ) + return -1; + + if ( krc ) + *krc = wxKILL_OK; + + return 0; +} + +typedef HANDLE (WINAPI *CreateToolhelp32Snapshot_t)(DWORD,DWORD); +typedef BOOL (WINAPI *Process32_t)(HANDLE,LPPROCESSENTRY32); + +CreateToolhelp32Snapshot_t lpfCreateToolhelp32Snapshot; +Process32_t lpfProcess32First, lpfProcess32Next; + +static void InitToolHelp32() +{ + static bool s_initToolHelpDone = false; + + if (s_initToolHelpDone) + return; + + s_initToolHelpDone = true; + + lpfCreateToolhelp32Snapshot = NULL; + lpfProcess32First = NULL; + lpfProcess32Next = NULL; + +#if wxUSE_DYNLIB_CLASS + + wxDynamicLibrary dllKernel(_T("kernel32.dll"), wxDL_VERBATIM); + + // Get procedure addresses. + // We are linking to these functions of Kernel32 + // explicitly, because otherwise a module using + // this code would fail to load under Windows NT, + // which does not have the Toolhelp32 + // functions in the Kernel 32. + lpfCreateToolhelp32Snapshot = + (CreateToolhelp32Snapshot_t)dllKernel.RawGetSymbol(_T("CreateToolhelp32Snapshot")); + + lpfProcess32First = + (Process32_t)dllKernel.RawGetSymbol(_T("Process32First")); + + lpfProcess32Next = + (Process32_t)dllKernel.RawGetSymbol(_T("Process32Next")); + +#endif // wxUSE_DYNLIB_CLASS +} + +// By John Skiff +int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc) +{ + InitToolHelp32(); + if (krc) + *krc = wxKILL_OK; + + // If not implemented for this platform (e.g. NT 4.0), silently ignore + if (!lpfCreateToolhelp32Snapshot || !lpfProcess32First || !lpfProcess32Next) return 0; + + // Take a snapshot of all processes in the system. + HANDLE hProcessSnap = lpfCreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); + if (hProcessSnap == INVALID_HANDLE_VALUE) { + if (krc) + *krc = wxKILL_ERROR; + return -1; } - // error - return -1; + //Fill in the size of the structure before using it. + PROCESSENTRY32 pe; + wxZeroMemory(pe); + pe.dwSize = sizeof(PROCESSENTRY32); + + // Walk the snapshot of the processes, and for each process, + // kill it if its parent is pid. + if (!lpfProcess32First(hProcessSnap, &pe)) { + // Can't get first process. + if (krc) + *krc = wxKILL_ERROR; + CloseHandle (hProcessSnap); + return -1; + } + + do { + if (pe.th32ParentProcessID == (DWORD) pid) { + if (wxKill(pe.th32ProcessID, sig, krc)) + return -1; + } + } while (lpfProcess32Next (hProcessSnap, &pe)); + + + return 0; } // Execute a program in an Interactive Shell bool wxShell(const wxString& command) { + wxString cmd; + +#ifdef __WXWINCE__ + cmd = command; +#else wxChar *shell = wxGetenv(wxT("COMSPEC")); if ( !shell ) shell = (wxChar*) wxT("\\COMMAND.COM"); - wxString cmd; if ( !command ) { // just the shell @@ -830,17 +947,21 @@ bool wxShell(const wxString& command) // pass the command to execute to the command processor cmd.Printf(wxT("%s /c %s"), shell, command.c_str()); } +#endif return wxExecute(cmd, wxEXEC_SYNC) == 0; } // Shutdown or reboot the PC -bool wxShutdown(wxShutdownFlags wFlags) +bool wxShutdown(wxShutdownFlags WXUNUSED_IN_WINCE(wFlags)) { -#ifdef __WIN32__ - bool bOK = TRUE; +#ifdef __WXWINCE__ + // TODO-CE + return false; +#elif defined(__WIN32__) + bool bOK = true; - if ( wxGetOsVersion(NULL, NULL) == wxWINDOWS_NT ) // if is NT or 2K + if ( wxGetOsVersion(NULL, NULL) == wxOS_WINDOWS_NT ) // if is NT or 2K { // Get a token for this process. HANDLE hToken; @@ -882,15 +1003,13 @@ bool wxShutdown(wxShutdownFlags wFlags) default: wxFAIL_MSG( _T("unknown wxShutdown() flag") ); - return FALSE; + return false; } - bOK = ::ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE | EWX_REBOOT, 0) != 0; + bOK = ::ExitWindowsEx(flags, 0) != 0; } return bOK; -#else // Win16 - return FALSE; #endif // Win32/16 } @@ -899,25 +1018,24 @@ bool wxShutdown(wxShutdownFlags wFlags) // ---------------------------------------------------------------------------- // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX) -long wxGetFreeMemory() +wxMemorySize wxGetFreeMemory() { -#if defined(__WIN32__) && !defined(__BORLANDC__) +#if defined(__WIN64__) + MEMORYSTATUSEX memStatex; + memStatex.dwLength = sizeof (memStatex); + ::GlobalMemoryStatusEx (&memStatex); + return (wxMemorySize)memStatex.ullAvailPhys; +#else /* if defined(__WIN32__) */ MEMORYSTATUS memStatus; memStatus.dwLength = sizeof(MEMORYSTATUS); - GlobalMemoryStatus(&memStatus); - return memStatus.dwAvailPhys; -#else - return (long)GetFreeSpace(0); + ::GlobalMemoryStatus(&memStatus); + return (wxMemorySize)memStatus.dwAvailPhys; #endif } unsigned long wxGetProcessId() { -#ifdef __WIN32__ return ::GetCurrentProcessId(); -#else - return 0; -#endif } // Emit a beeeeeep @@ -926,9 +1044,31 @@ void wxBell() ::MessageBeep((UINT)-1); // default sound } +bool wxIsDebuggerRunning() +{ +#if wxUSE_DYNLIB_CLASS + // IsDebuggerPresent() is not available under Win95, so load it dynamically + wxDynamicLibrary dll(_T("kernel32.dll"), wxDL_VERBATIM); + + typedef BOOL (WINAPI *IsDebuggerPresent_t)(); + if ( !dll.HasSymbol(_T("IsDebuggerPresent")) ) + { + // no way to know, assume no + return false; + } + + return (*(IsDebuggerPresent_t)dll.GetSymbol(_T("IsDebuggerPresent")))() != 0; +#else + return false; +#endif +} + +// ---------------------------------------------------------------------------- +// OS version +// ---------------------------------------------------------------------------- + wxString wxGetOsDescription() { -#ifdef __WIN32__ wxString str; OSVERSIONINFO info; @@ -939,13 +1079,51 @@ wxString wxGetOsDescription() { switch ( info.dwPlatformId ) { +#ifdef VER_PLATFORM_WIN32_CE + case VER_PLATFORM_WIN32_CE: + str.Printf(_("Windows CE (%d.%d)"), + info.dwMajorVersion, + info.dwMinorVersion); + break; +#endif case VER_PLATFORM_WIN32s: str = _("Win32s on Windows 3.1"); break; case VER_PLATFORM_WIN32_WINDOWS: - str.Printf(_("Windows 9%c"), - info.dwMinorVersion == 0 ? _T('5') : _T('8')); + switch (info.dwMinorVersion) + { + case 0: + if ( info.szCSDVersion[1] == 'B' || + info.szCSDVersion[1] == 'C' ) + { + str = _("Windows 95 OSR2"); + } + else + { + str = _("Windows 95"); + } + break; + case 10: + if ( info.szCSDVersion[1] == 'B' || + info.szCSDVersion[1] == 'C' ) + { + str = _("Windows 98 SE"); + } + else + { + str = _("Windows 98"); + } + break; + case 90: + str = _("Windows ME"); + break; + default: + str.Printf(_("Windows 9x (%d.%d)"), + info.dwMajorVersion, + info.dwMinorVersion); + break; + } if ( !wxIsEmpty(info.szCSDVersion) ) { str << _T(" (") << info.szCSDVersion << _T(')'); @@ -953,10 +1131,31 @@ wxString wxGetOsDescription() break; case VER_PLATFORM_WIN32_NT: - str.Printf(_T("Windows NT %lu.%lu (build %lu"), + if ( info.dwMajorVersion == 5 ) + { + switch ( info.dwMinorVersion ) + { + case 0: + str.Printf(_("Windows 2000 (build %lu"), + info.dwBuildNumber); + break; + case 1: + str.Printf(_("Windows XP (build %lu"), + info.dwBuildNumber); + break; + case 2: + str.Printf(_("Windows Server 2003 (build %lu"), + info.dwBuildNumber); + break; + } + } + if ( str.empty() ) + { + str.Printf(_("Windows NT %lu.%lu (build %lu"), info.dwMajorVersion, info.dwMinorVersion, info.dwBuildNumber); + } if ( !wxIsEmpty(info.szCSDVersion) ) { str << _T(", ") << info.szCSDVersion; @@ -971,77 +1170,144 @@ wxString wxGetOsDescription() } return str; -#else // Win16 - return _("Windows 3.1"); -#endif // Win32/16 } -int wxAppTraits::GetOSVersion(int *verMaj, int *verMin) +bool wxIsPlatform64Bit() +{ +#if defined(_WIN64) + return true; // 64-bit programs run only on Win64 +#else // Win32 + // 32-bit programs run on both 32-bit and 64-bit Windows so check + typedef BOOL (WINAPI *IsWow64Process_t)(HANDLE, BOOL *); + + wxDynamicLibrary dllKernel32(_T("kernel32.dll")); + IsWow64Process_t pfnIsWow64Process = + (IsWow64Process_t)dllKernel32.RawGetSymbol(_T("IsWow64Process")); + + BOOL wow64 = FALSE; + if ( pfnIsWow64Process ) + { + pfnIsWow64Process(::GetCurrentProcess(), &wow64); + } + //else: running under a system without Win64 support + + return wow64 != FALSE; +#endif // Win64/Win32 +} + +wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin) { - // cache the version info, it's not going to change - // - // NB: this is MT-safe, we may use these static vars from different threads - // but as they always have the same value it doesn't matter - static int s_ver = -1, - s_major = -1, - s_minor = -1; - - if ( s_ver == -1 ) + OSVERSIONINFO info; + wxZeroMemory(info); + + info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + if ( ::GetVersionEx(&info) ) { - OSVERSIONINFO info; - wxZeroMemory(info); + if (verMaj) *verMaj = info.dwMajorVersion; + if (verMin) *verMin = info.dwMinorVersion; + } - s_ver = wxWINDOWS; - info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - if ( ::GetVersionEx(&info) ) - { - s_major = info.dwMajorVersion; - s_minor = info.dwMinorVersion; +#if defined( __WXWINCE__ ) + return wxOS_WINDOWS_CE; +#elif defined( __WXMICROWIN__ ) + return wxOS_WINDOWS_MICRO; +#else + switch ( info.dwPlatformId ) + { + case VER_PLATFORM_WIN32_NT: + return wxOS_WINDOWS_NT; + + case VER_PLATFORM_WIN32_WINDOWS: + return wxOS_WINDOWS_9X; + } - switch ( info.dwPlatformId ) + return wxOS_UNKNOWN; +#endif +} + +wxWinVersion wxGetWinVersion() +{ + int verMaj, + verMin; + switch ( wxGetOsVersion(&verMaj, &verMin) ) + { + case wxOS_WINDOWS_9X: + if ( verMaj == 4 ) { - case VER_PLATFORM_WIN32s: - s_ver = wxWIN32S; - break; + switch ( verMin ) + { + case 0: + return wxWinVersion_95; - case VER_PLATFORM_WIN32_WINDOWS: - s_ver = wxWIN95; - break; + case 10: + return wxWinVersion_98; + + case 90: + return wxWinVersion_ME; + } + } + break; + + case wxOS_WINDOWS_NT: + switch ( verMaj ) + { + case 3: + return wxWinVersion_NT3; + + case 4: + return wxWinVersion_NT4; + + case 5: + switch ( verMin ) + { + case 0: + return wxWinVersion_2000; + + case 1: + return wxWinVersion_XP; - case VER_PLATFORM_WIN32_NT: - s_ver = wxWINDOWS_NT; + case 2: + return wxWinVersion_2003; + } break; + + case 6: + return wxWinVersion_NT6; } - } - } + break; - if ( verMaj ) - *verMaj = s_major; - if ( verMin ) - *verMin = s_minor; + default: + // Do nothing just to silence GCC warning + break; + } - return s_ver; + return wxWinVersion_Unknown; } // ---------------------------------------------------------------------------- // sleep functions // ---------------------------------------------------------------------------- -void wxUsleep(unsigned long milliseconds) +void wxMilliSleep(unsigned long milliseconds) { ::Sleep(milliseconds); } +void wxMicroSleep(unsigned long microseconds) +{ + wxMilliSleep(microseconds/1000); +} + void wxSleep(int nSecs) { - wxUsleep(1000*nSecs); + wxMilliSleep(1000*nSecs); } // ---------------------------------------------------------------------------- // font encoding <-> Win32 codepage conversion functions // ---------------------------------------------------------------------------- -extern long wxEncodingToCharset(wxFontEncoding encoding) +extern WXDLLIMPEXP_BASE long wxEncodingToCharset(wxFontEncoding encoding) { switch ( encoding ) { @@ -1063,8 +1329,10 @@ extern long wxEncodingToCharset(wxFontEncoding encoding) case wxFONTENCODING_CP936: return GB2312_CHARSET; +#ifndef __WXWINCE__ case wxFONTENCODING_CP949: return HANGUL_CHARSET; +#endif case wxFONTENCODING_CP950: return CHINESEBIG5_CHARSET; @@ -1097,10 +1365,11 @@ extern long wxEncodingToCharset(wxFontEncoding encoding) case wxFONTENCODING_CP437: return OEM_CHARSET; - } - // no way to translate this encoding into a Windows charset - return -1; + default: + // no way to translate this encoding into a Windows charset + return -1; + } } // we have 2 versions of wxCharsetToCodepage(): the old one which directly @@ -1111,34 +1380,88 @@ extern long wxEncodingToCharset(wxFontEncoding encoding) #include "wx/fontmap.h" -extern long wxEncodingToCodepage(wxFontEncoding encoding) +extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding) { - // translate encoding into the Windows CHARSET - long charset = wxEncodingToCharset(encoding); - if ( charset == -1 ) - return -1; + // There don't seem to be symbolic names for + // these under Windows so I just copied the + // values from MSDN. - // translate CHARSET to code page - CHARSETINFO csetInfo; - if ( !::TranslateCharsetInfo((DWORD *)(DWORD)charset, - &csetInfo, - TCI_SRCCHARSET) ) + unsigned int ret; + + switch (encoding) { - wxLogLastError(_T("TranslateCharsetInfo(TCI_SRCCHARSET)")); + case wxFONTENCODING_ISO8859_1: ret = 28591; break; + case wxFONTENCODING_ISO8859_2: ret = 28592; break; + case wxFONTENCODING_ISO8859_3: ret = 28593; break; + case wxFONTENCODING_ISO8859_4: ret = 28594; break; + case wxFONTENCODING_ISO8859_5: ret = 28595; break; + case wxFONTENCODING_ISO8859_6: ret = 28596; break; + case wxFONTENCODING_ISO8859_7: ret = 28597; break; + case wxFONTENCODING_ISO8859_8: ret = 28598; break; + case wxFONTENCODING_ISO8859_9: ret = 28599; break; + case wxFONTENCODING_ISO8859_10: ret = 28600; break; + case wxFONTENCODING_ISO8859_11: ret = 874; break; + // case wxFONTENCODING_ISO8859_12, // doesn't exist currently, but put it + case wxFONTENCODING_ISO8859_13: ret = 28603; break; + // case wxFONTENCODING_ISO8859_14: ret = 28604; break; // no correspondence on Windows + case wxFONTENCODING_ISO8859_15: ret = 28605; break; + case wxFONTENCODING_KOI8: ret = 20866; break; + case wxFONTENCODING_KOI8_U: ret = 21866; break; + case wxFONTENCODING_CP437: ret = 437; break; + case wxFONTENCODING_CP850: ret = 850; break; + case wxFONTENCODING_CP852: ret = 852; break; + case wxFONTENCODING_CP855: ret = 855; break; + case wxFONTENCODING_CP866: ret = 866; break; + case wxFONTENCODING_CP874: ret = 874; break; + case wxFONTENCODING_CP932: ret = 932; break; + case wxFONTENCODING_CP936: ret = 936; break; + case wxFONTENCODING_CP949: ret = 949; break; + case wxFONTENCODING_CP950: ret = 950; break; + case wxFONTENCODING_CP1250: ret = 1250; break; + case wxFONTENCODING_CP1251: ret = 1251; break; + case wxFONTENCODING_CP1252: ret = 1252; break; + case wxFONTENCODING_CP1253: ret = 1253; break; + case wxFONTENCODING_CP1254: ret = 1254; break; + case wxFONTENCODING_CP1255: ret = 1255; break; + case wxFONTENCODING_CP1256: ret = 1256; break; + case wxFONTENCODING_CP1257: ret = 1257; break; + case wxFONTENCODING_EUC_JP: ret = 20932; break; + case wxFONTENCODING_MACROMAN: ret = 10000; break; + case wxFONTENCODING_MACJAPANESE: ret = 10001; break; + case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break; + case wxFONTENCODING_MACKOREAN: ret = 10003; break; + case wxFONTENCODING_MACARABIC: ret = 10004; break; + case wxFONTENCODING_MACHEBREW: ret = 10005; break; + case wxFONTENCODING_MACGREEK: ret = 10006; break; + case wxFONTENCODING_MACCYRILLIC: ret = 10007; break; + case wxFONTENCODING_MACTHAI: ret = 10021; break; + case wxFONTENCODING_MACCHINESESIMP: ret = 10008; break; + case wxFONTENCODING_MACCENTRALEUR: ret = 10029; break; + case wxFONTENCODING_MACCROATIAN: ret = 10082; break; + case wxFONTENCODING_MACICELANDIC: ret = 10079; break; + case wxFONTENCODING_MACROMANIAN: ret = 10009; break; + case wxFONTENCODING_UTF7: ret = 65000; break; + case wxFONTENCODING_UTF8: ret = 65001; break; + default: return -1; + } + if (::IsValidCodePage(ret) == 0) + return -1; + + CPINFO info; + if (::GetCPInfo(ret, &info) == 0) return -1; - } - return csetInfo.ciACP; + return (long) ret; } -extern long wxCharsetToCodepage(const wxChar *name) +extern long wxCharsetToCodepage(const char *name) { // first get the font encoding for this charset if ( !name ) return -1; - wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(name, FALSE); + wxFontEncoding enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false); if ( enc == wxFONTENCODING_SYSTEM ) return -1; @@ -1151,7 +1474,7 @@ extern long wxCharsetToCodepage(const wxChar *name) #include "wx/msw/registry.h" // this should work if Internet Exploiter is installed -extern long wxCharsetToCodepage(const wxChar *name) +extern long wxCharsetToCodepage(const char *name) { if (!name) return GetACP(); @@ -1189,3 +1512,61 @@ extern long wxCharsetToCodepage(const wxChar *name) #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP +/* + Creates a hidden window with supplied window proc registering the class for + it if necesssary (i.e. the first time only). Caller is responsible for + destroying the window and unregistering the class (note that this must be + done because wxWidgets may be used as a DLL and so may be loaded/unloaded + multiple times into/from the same process so we cna't rely on automatic + Windows class unregistration). + + pclassname is a pointer to a caller stored classname, which must initially be + NULL. classname is the desired wndclass classname. If function successfully + registers the class, pclassname will be set to classname. + */ +extern "C" WXDLLIMPEXP_BASE HWND +wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc) +{ + wxCHECK_MSG( classname && pclassname && wndproc, NULL, + _T("NULL parameter in wxCreateHiddenWindow") ); + + // register the class fi we need to first + if ( *pclassname == NULL ) + { + WNDCLASS wndclass; + wxZeroMemory(wndclass); + + wndclass.lpfnWndProc = wndproc; + wndclass.hInstance = wxGetInstance(); + wndclass.lpszClassName = classname; + + if ( !::RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass() in wxCreateHiddenWindow")); + + return NULL; + } + + *pclassname = classname; + } + + // next create the window + HWND hwnd = ::CreateWindow + ( + *pclassname, + NULL, + 0, 0, 0, 0, + 0, + (HWND) NULL, + (HMENU)NULL, + wxGetInstance(), + (LPVOID) NULL + ); + + if ( !hwnd ) + { + wxLogLastError(wxT("CreateWindow() in wxCreateHiddenWindow")); + } + + return hwnd; +}