X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a46a73a6776392ad1ac75ea58e53b1c3a72d9484..87df17a11b0017d31c09f767bd921abb27193bee:/src/msw/utils.cpp?ds=sidebyside diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp index 2a9d0a99a4..f5efb921f0 100644 --- a/src/msw/utils.cpp +++ b/src/msw/utils.cpp @@ -38,7 +38,7 @@ // In some mingws there is a missing extern "C" int the winsock header, // so we put it here just to be safe. Note that this must appear _before_ -// #include "wx/msw/private.h" which itself includes , as this +// #include "wx/msw/private.h" which itself includes , as this // one in turn includes unless we define WIN32_LEAN_AND_MEAN. // #if defined(__WIN32__) && !defined(__TWIN32__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__)) @@ -423,7 +423,7 @@ const wxChar* wxGetHomeDir(wxString *pstr) return strDir.c_str(); } -wxChar *wxGetUserHome(const wxString& user) +wxChar *wxGetUserHome(const wxString& WXUNUSED(user)) { // VZ: the old code here never worked for user != "" anyhow! Moreover, it // returned sometimes a malloc()'d pointer, sometimes a pointer to a @@ -436,29 +436,14 @@ wxChar *wxGetUserHome(const wxString& user) bool wxDirExists(const wxString& dir) { #if defined(__WIN32__) - WIN32_FIND_DATA fileInfo; + 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 -#endif // Win32/16 - -#if defined(__WIN32__) - HANDLE h = ::FindFirstFile(dir, &fileInfo); - - if ( h == INVALID_HANDLE_VALUE ) - { - wxLogLastError(wxT("FindFirstFile")); - - return FALSE; - } - - ::FindClose(h); - - return (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0; -#else // Win16 // In Borland findfirst has a different argument // ordering from _dos_findfirst. But _dos_findfirst // _should_ be ok in both MS and Borland... why not? @@ -478,6 +463,16 @@ bool wxDirExists(const wxString& dir) bool wxGetEnv(const wxString& var, wxString *value) { +#ifdef __WIN16__ + const wxChar* ret = wxGetenv(var); + if (ret) + { + *value = ret; + return TRUE; + } + else + return FALSE; +#else // first get the size of the buffer DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0); if ( !dwRet ) @@ -493,6 +488,7 @@ bool wxGetEnv(const wxString& var, wxString *value) } return TRUE; +#endif } bool wxSetEnv(const wxString& var, const wxChar *value) @@ -517,11 +513,204 @@ bool wxSetEnv(const wxString& var, const wxChar *value) // process management // ---------------------------------------------------------------------------- -int wxKill(long pid, int sig) +#ifdef __WIN32__ + +// structure used to pass parameters from wxKill() to wxEnumFindByPidProc() +struct wxFindByPidParams { - // TODO use SendMessage(WM_QUIT) and TerminateProcess() if needed + wxFindByPidParams() { hwnd = 0; pid = 0; } - return 0; + // the HWND used to return the result + HWND hwnd; + + // the PID we're looking from + DWORD pid; +}; + +// wxKill helper: EnumWindows() callback which is used to find the first (top +// level) window belonging to the given process +BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam) +{ + DWORD pid; + (void)::GetWindowThreadProcessId(hwnd, &pid); + + wxFindByPidParams *params = (wxFindByPidParams *)lParam; + if ( pid == params->pid ) + { + // remember the window we found + params->hwnd = hwnd; + + // return FALSE to stop the enumeration + return FALSE; + } + + // continue enumeration + return TRUE; +} + +#endif // __WIN32__ + +int wxKill(long pid, wxSignal sig, wxKillError *krc) +{ +#ifdef __WIN32__ + // get the process handle to operate on + HANDLE hProcess = ::OpenProcess(SYNCHRONIZE | + PROCESS_TERMINATE | + PROCESS_QUERY_INFORMATION, + FALSE, // not inheritable + (DWORD)pid); + if ( hProcess == NULL ) + { + if ( krc ) + { + if ( ::GetLastError() == ERROR_ACCESS_DENIED ) + { + *krc = wxKILL_ACCESS_DENIED; + } + else + { + *krc = wxKILL_NO_PROCESS; + } + } + + return -1; + } + + bool ok = TRUE; + switch ( sig ) + { + case wxSIGKILL: + // kill the process forcefully returning -1 as error code + if ( !::TerminateProcess(hProcess, (UINT)-1) ) + { + wxLogSysError(_("Failed to kill process %d"), pid); + + if ( krc ) + { + // this is not supposed to happen if we could open the + // process + *krc = wxKILL_ERROR; + } + + ok = FALSE; + } + break; + + case wxSIGNONE: + // do nothing, we just want to test for process existence + break; + + default: + // any other signal means "terminate" + { + wxFindByPidParams params; + 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 + // enumerated all the window + if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)¶ms) ) + { + // did we find any window? + if ( params.hwnd ) + { + // tell the app to close + // + // NB: this is the harshest way, the app won't have + // opportunity to save any files, for example, but + // this is probably what we want here. If not we + // can also use SendMesageTimeout(WM_CLOSE) + if ( !::PostMessage(params.hwnd, WM_QUIT, 0, 0) ) + { + wxLogLastError(_T("PostMessage(WM_QUIT)")); + } + } + else // it was an error then + { + wxLogLastError(_T("EnumWindows")); + + ok = FALSE; + } + } + else // no windows for this PID + { + if ( krc ) + { + *krc = wxKILL_ERROR; + } + + ok = FALSE; + } + } + } + + // the return code + DWORD rc; + + if ( ok ) + { + // as we wait for a short time, we can use just WaitForSingleObject() + // and not MsgWaitForMultipleObjects() + switch ( ::WaitForSingleObject(hProcess, 500 /* msec */) ) + { + case WAIT_OBJECT_0: + // process terminated + if ( !::GetExitCodeProcess(hProcess, &rc) ) + { + wxLogLastError(_T("GetExitCodeProcess")); + } + break; + + default: + wxFAIL_MSG( _T("unexpected WaitForSingleObject() return") ); + // fall through + + case WAIT_FAILED: + wxLogLastError(_T("WaitForSingleObject")); + // fall through + + 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 + if ( sig == wxSIGNONE ) + { + if ( ok && rc == STILL_ACTIVE ) + { + // there is such process => success + return 0; + } + } + else // not SIGNONE + { + if ( ok && rc != STILL_ACTIVE ) + { + // killed => success + return 0; + } + } +#else // Win15 + wxFAIL_MSG( _T("not implemented") ); +#endif // Win32/Win16 + + // error + return -1; } // Execute a program in an Interactive Shell @@ -632,7 +821,7 @@ int wxGetOsVersion(int *majorVsn, int *minorVsn) *majorVsn = info.dwMajorVersion; if (minorVsn) *minorVsn = info.dwMinorVersion; - + switch ( info.dwPlatformId ) { case VER_PLATFORM_WIN32s: @@ -1005,10 +1194,22 @@ void wxGetMousePosition( int* x, int* y ) // Return TRUE if we have a colour display bool wxColourDisplay() { - ScreenHDC dc; - int noCols = GetDeviceCaps(dc, NUMCOLORS); + // this function is called from wxDC ctor so it is called a *lot* of times + // hence we optimize it a bit but doign the check only once + // + // this should be MT safe as only the GUI thread (holding the GUI mutex) + // can call us + static int s_isColour = -1; + + if ( s_isColour == -1 ) + { + ScreenHDC dc; + int noCols = ::GetDeviceCaps(dc, NUMCOLORS); + + s_isColour = (noCols == -1) || (noCols > 2); + } - return (noCols == -1) || (noCols > 2); + return s_isColour != 0; } // Returns depth of screen @@ -1035,6 +1236,24 @@ void wxDisplaySizeMM(int *width, int *height) if ( height ) *height = GetDeviceCaps(dc, VERTSIZE); } +void wxClientDisplayRect(int *x, int *y, int *width, int *height) +{ +#ifdef __WIN16__ + *x = 0; *y = 0; + wxDisplaySize(width, height); +#else + // Determine the desktop dimensions minus the taskbar and any other + // special decorations... + RECT r; + + SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0); + if (x) *x = r.left; + if (y) *y = r.top; + if (width) *width = r.right - r.left; + if (height) *height = r.bottom - r.top; +#endif +} + // --------------------------------------------------------------------------- // window information functions @@ -1096,14 +1315,52 @@ wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd) WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd) { #ifndef __WIN32__ - return GetWindowWord((HWND)hWnd, GWW_ID); + return (WXWORD)GetWindowWord((HWND)hWnd, GWW_ID); #else // Win32 - return GetWindowLong((HWND)hWnd, GWL_ID); + return (WXWORD)GetWindowLong((HWND)hWnd, GWL_ID); #endif // Win16/32 } #endif // wxUSE_GUI +#if wxUSE_GUI + +// ---------------------------------------------------------------------------- +// Metafile helpers +// ---------------------------------------------------------------------------- + +extern void PixelToHIMETRIC(LONG *x, LONG *y) +{ + ScreenHDC hdcRef; + + int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE), + iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE), + iWidthPels = GetDeviceCaps(hdcRef, HORZRES), + iHeightPels = GetDeviceCaps(hdcRef, VERTRES); + + *x *= (iWidthMM * 100); + *x /= iWidthPels; + *y *= (iHeightMM * 100); + *y /= iHeightPels; +} + +extern void HIMETRICToPixel(LONG *x, LONG *y) +{ + ScreenHDC hdcRef; + + int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE), + iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE), + iWidthPels = GetDeviceCaps(hdcRef, HORZRES), + iHeightPels = GetDeviceCaps(hdcRef, VERTRES); + + *x *= iWidthPels; + *x /= (iWidthMM * 100); + *y *= iHeightPels; + *y /= (iHeightMM * 100); +} + +#endif // wxUSE_GUI + #if 0 //------------------------------------------------------------------------ // wild character routines