/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved gvimext by Tianmiao Hu * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. */ /* * gvimext is a DLL which is used for the "Edit with Vim" context menu * extension. It implements a MS defined interface with the Shell. * * If you have any questions or any suggestions concerning gvimext, please * contact Tianmiao Hu: tianmiao@acm.org. */ #include "gvimext.h" #ifdef __BORLANDC__ # include # ifndef _strnicmp # define _strnicmp(a, b, c) strnicmp((a), (b), (c)) # endif #else static char *searchpath(char *name); #endif // Always get an error while putting the following stuff to the // gvimext.h file as class protected variables, give up and // declare them as global stuff FORMATETC fmte = {CF_HDROP, (DVTARGETDEVICE FAR *)NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }; STGMEDIUM medium; HRESULT hres = 0; UINT cbFiles = 0; /* The buffers size used to be MAX_PATH (256 bytes), but that's not always * enough */ #define BUFSIZE 1100 // // Get the name of the Gvim executable to use, with the path. // When "runtime" is non-zero, we were called to find the runtime directory. // Returns the path in name[BUFSIZE]. It's empty when it fails. // static void getGvimName(char *name, int runtime) { HKEY keyhandle; DWORD hlen; // Get the location of gvim from the registry. name[0] = 0; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Vim\\Gvim", 0, KEY_READ, &keyhandle) == ERROR_SUCCESS) { hlen = BUFSIZE; if (RegQueryValueEx(keyhandle, "path", 0, NULL, (BYTE *)name, &hlen) != ERROR_SUCCESS) name[0] = 0; else name[hlen] = 0; RegCloseKey(keyhandle); } // Registry didn't work, use the search path. if (name[0] == 0) strcpy(name, searchpath((char *)"gvim.exe")); if (!runtime) { // Only when looking for the executable, not the runtime dir, we can // search for the batch file or a name without a path. if (name[0] == 0) strcpy(name, searchpath((char *)"gvim.bat")); if (name[0] == 0) strcpy(name, "gvim"); // finds gvim.bat or gvim.exe // avoid that Vim tries to expand wildcards in the file names strcat(name, " --literal"); } } static void getGvimNameW(wchar_t *nameW) { char *name; name = (char *)malloc(BUFSIZE); getGvimName(name, 0); mbstowcs(nameW, name, BUFSIZE); free(name); } // // Get the Vim runtime directory into buf[BUFSIZE]. // The result is empty when it failed. // When it works, the path ends in a slash or backslash. // static void getRuntimeDir(char *buf) { int idx; getGvimName(buf, 1); if (buf[0] != 0) { // When no path found, use the search path to expand it. if (strchr(buf, '/') == NULL && strchr(buf, '\\') == NULL) strcpy(buf, searchpath(buf)); // remove "gvim.exe" from the end for (idx = (int)strlen(buf) - 1; idx >= 0; idx--) if (buf[idx] == '\\' || buf[idx] == '/') { buf[idx + 1] = 0; break; } } } // // GETTEXT: translated messages and menu entries // #ifndef FEAT_GETTEXT # define _(x) x #else # define _(x) (*dyn_libintl_gettext)(x) # define VIMPACKAGE "vim" # ifndef GETTEXT_DLL # define GETTEXT_DLL "libintl.dll" # endif // Dummy functions static char *null_libintl_gettext(const char *); static char *null_libintl_textdomain(const char *); static char *null_libintl_bindtextdomain(const char *, const char *); static int dyn_libintl_init(char *dir); static void dyn_libintl_end(void); static wchar_t *oldenv = NULL; static HINSTANCE hLibintlDLL = 0; static char *(*dyn_libintl_gettext)(const char *) = null_libintl_gettext; static char *(*dyn_libintl_textdomain)(const char *) = null_libintl_textdomain; static char *(*dyn_libintl_bindtextdomain)(const char *, const char *) = null_libintl_bindtextdomain; // // Attempt to load libintl.dll. If it doesn't work, use dummy functions. // "dir" is the directory where the libintl.dll might be. // Return 1 for success, 0 for failure. // static int dyn_libintl_init(char *dir) { int i; static struct { char *name; FARPROC *ptr; } libintl_entry[] = { {(char *)"gettext", (FARPROC*)&dyn_libintl_gettext}, {(char *)"textdomain", (FARPROC*)&dyn_libintl_textdomain}, {(char *)"bindtextdomain", (FARPROC*)&dyn_libintl_bindtextdomain}, {NULL, NULL} }; // No need to initialize twice. if (hLibintlDLL) return 1; // Load gettext library, first try the Vim runtime directory, then search // the path. strcat(dir, GETTEXT_DLL); hLibintlDLL = LoadLibrary(dir); if (!hLibintlDLL) { hLibintlDLL = LoadLibrary(GETTEXT_DLL); if (!hLibintlDLL) return 0; } // Get the addresses of the functions we need. for (i = 0; libintl_entry[i].name != NULL && libintl_entry[i].ptr != NULL; ++i) { if ((*libintl_entry[i].ptr = GetProcAddress(hLibintlDLL, libintl_entry[i].name)) == NULL) { dyn_libintl_end(); return 0; } } return 1; } static void dyn_libintl_end(void) { if (hLibintlDLL) FreeLibrary(hLibintlDLL); hLibintlDLL = NULL; dyn_libintl_gettext = null_libintl_gettext; dyn_libintl_textdomain = null_libintl_textdomain; dyn_libintl_bindtextdomain = null_libintl_bindtextdomain; } static char * null_libintl_gettext(const char *msgid) { return (char *)msgid; } static char * null_libintl_bindtextdomain(const char * /* domainname */, const char * /* dirname */) { return NULL; } static char * null_libintl_textdomain(const char* /* domainname */) { return NULL; } // // Setup for translating strings. // static void dyn_gettext_load(void) { char szBuff[BUFSIZE]; char szLang[BUFSIZE]; DWORD len; HKEY keyhandle; int gotlang = 0; strcpy(szLang, "LANG="); // First try getting the language from the registry, this can be // used to overrule the system language. if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Vim\\Gvim", 0, KEY_READ, &keyhandle) == ERROR_SUCCESS) { len = BUFSIZE; if (RegQueryValueEx(keyhandle, "lang", 0, NULL, (BYTE*)szBuff, &len) == ERROR_SUCCESS) { szBuff[len] = 0; strcat(szLang, szBuff); gotlang = 1; } RegCloseKey(keyhandle); } if (!gotlang && getenv("LANG") == NULL) { // Get the language from the system. // Could use LOCALE_SISO639LANGNAME, but it's not in Win95. // LOCALE_SABBREVLANGNAME gives us three letters, like "enu", we use // only the first two. len = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SABBREVLANGNAME, (LPTSTR)szBuff, BUFSIZE); if (len >= 2 && _strnicmp(szBuff, "en", 2) != 0) { // There are a few exceptions (probably more) if (_strnicmp(szBuff, "cht", 3) == 0 || _strnicmp(szBuff, "zht", 3) == 0) strcpy(szBuff, "zh_TW"); else if (_strnicmp(szBuff, "chs", 3) == 0 || _strnicmp(szBuff, "zhc", 3) == 0) strcpy(szBuff, "zh_CN"); else if (_strnicmp(szBuff, "jp", 2) == 0) strcpy(szBuff, "ja"); else szBuff[2] = 0; // truncate to two-letter code strcat(szLang, szBuff); gotlang = 1; } } if (gotlang) putenv(szLang); // Try to locate the runtime files. The path is used to find libintl.dll // and the vim.mo files. getRuntimeDir(szBuff); if (szBuff[0] != 0) { len = (DWORD)strlen(szBuff); if (dyn_libintl_init(szBuff)) { strcpy(szBuff + len, "lang"); (*dyn_libintl_bindtextdomain)(VIMPACKAGE, szBuff); (*dyn_libintl_textdomain)(VIMPACKAGE); } } } static void dyn_gettext_free(void) { dyn_libintl_end(); } #endif // FEAT_GETTEXT // // Global variables // UINT g_cRefThisDll = 0; // Reference count of this DLL. HINSTANCE g_hmodThisDll = NULL; // Handle to this DLL itself. //--------------------------------------------------------------------------- // DllMain //--------------------------------------------------------------------------- extern "C" int APIENTRY DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /* lpReserved */) { switch (dwReason) { case DLL_PROCESS_ATTACH: // Extension DLL one-time initialization g_hmodThisDll = hInstance; break; case DLL_PROCESS_DETACH: break; } return 1; // ok } static void inc_cRefThisDLL() { #ifdef FEAT_GETTEXT if (g_cRefThisDll == 0) { dyn_gettext_load(); oldenv = GetEnvironmentStringsW(); } #endif InterlockedIncrement((LPLONG)&g_cRefThisDll); } static void dec_cRefThisDLL() { #ifdef FEAT_GETTEXT if (InterlockedDecrement((LPLONG)&g_cRefThisDll) == 0) { dyn_gettext_free(); if (oldenv != NULL) { FreeEnvironmentStringsW(oldenv); oldenv = NULL; } } #else InterlockedDecrement((LPLONG)&g_cRefThisDll); #endif } //--------------------------------------------------------------------------- // DllCanUnloadNow //--------------------------------------------------------------------------- STDAPI DllCanUnloadNow(void) { return (g_cRefThisDll == 0 ? S_OK : S_FALSE); } STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppvOut) { *ppvOut = NULL; if (IsEqualIID(rclsid, CLSID_ShellExtension)) { CShellExtClassFactory *pcf = new CShellExtClassFactory; return pcf->QueryInterface(riid, ppvOut); } return CLASS_E_CLASSNOTAVAILABLE; } CShellExtClassFactory::CShellExtClassFactory() { m_cRef = 0L; inc_cRefThisDLL(); } CShellExtClassFactory::~CShellExtClassFactory() { dec_cRefThisDLL(); } STDMETHODIMP CShellExtClassFactory::QueryInterface(REFIID riid, LPVOID FAR *ppv) { *ppv = NULL; // Any interface on this object is the object pointer if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IClassFactory)) { *ppv = (LPCLASSFACTORY)this; AddRef(); return NOERROR; } return E_NOINTERFACE; } STDMETHODIMP_(ULONG) CShellExtClassFactory::AddRef() { return InterlockedIncrement((LPLONG)&m_cRef); } STDMETHODIMP_(ULONG) CShellExtClassFactory::Release() { if (InterlockedDecrement((LPLONG)&m_cRef)) return m_cRef; delete this; return 0L; } STDMETHODIMP CShellExtClassFactory::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObj) { *ppvObj = NULL; // Shell extensions typically don't support aggregation (inheritance) if (pUnkOuter) return CLASS_E_NOAGGREGATION; // Create the main shell extension object. The shell will then call // QueryInterface with IID_IShellExtInit--this is how shell extensions are // initialized. LPCSHELLEXT pShellExt = new CShellExt(); //Create the CShellExt object if (NULL == pShellExt) return E_OUTOFMEMORY; return pShellExt->QueryInterface(riid, ppvObj); } STDMETHODIMP CShellExtClassFactory::LockServer(BOOL /* fLock */) { return NOERROR; } // *********************** CShellExt ************************* CShellExt::CShellExt() { m_cRef = 0L; m_pDataObj = NULL; inc_cRefThisDLL(); } CShellExt::~CShellExt() { if (m_pDataObj) m_pDataObj->Release(); dec_cRefThisDLL(); } STDMETHODIMP CShellExt::QueryInterface(REFIID riid, LPVOID FAR *ppv) { *ppv = NULL; if (IsEqualIID(riid, IID_IShellExtInit) || IsEqualIID(riid, IID_IUnknown)) { *ppv = (LPSHELLEXTINIT)this; } else if (IsEqualIID(riid, IID_IContextMenu)) { *ppv = (LPCONTEXTMENU)this; } if (*ppv) { AddRef(); return NOERROR; } return E_NOINTERFACE; } STDMETHODIMP_(ULONG) CShellExt::AddRef() { return InterlockedIncrement((LPLONG)&m_cRef); } STDMETHODIMP_(ULONG) CShellExt::Release() { if (InterlockedDecrement((LPLONG)&m_cRef)) return m_cRef; delete this; return 0L; } // // FUNCTION: CShellExt::Initialize(LPCITEMIDLIST, LPDATAOBJECT, HKEY) // // PURPOSE: Called by the shell when initializing a context menu or property // sheet extension. // // PARAMETERS: // pIDFolder - Specifies the parent folder // pDataObj - Specifies the set of items selected in that folder. // hRegKey - Specifies the type of the focused item in the selection. // // RETURN VALUE: // // NOERROR in all cases. // // COMMENTS: Note that at the time this function is called, we don't know // (or care) what type of shell extension is being initialized. // It could be a context menu or a property sheet. // STDMETHODIMP CShellExt::Initialize(LPCITEMIDLIST /* pIDFolder */, LPDATAOBJECT pDataObj, HKEY /* hRegKey */) { // Initialize can be called more than once if (m_pDataObj) m_pDataObj->Release(); // duplicate the object pointer and registry handle if (pDataObj) { m_pDataObj = pDataObj; pDataObj->AddRef(); } return NOERROR; } // // FUNCTION: CShellExt::QueryContextMenu(HMENU, UINT, UINT, UINT, UINT) // // PURPOSE: Called by the shell just before the context menu is displayed. // This is where you add your specific menu items. // // PARAMETERS: // hMenu - Handle to the context menu // indexMenu - Index of where to begin inserting menu items // idCmdFirst - Lowest value for new menu ID's // idCmtLast - Highest value for new menu ID's // uFlags - Specifies the context of the menu event // // RETURN VALUE: // // // COMMENTS: // STDMETHODIMP CShellExt::QueryContextMenu(HMENU hMenu, UINT indexMenu, UINT idCmdFirst, UINT /* idCmdLast */, UINT /* uFlags */) { UINT idCmd = idCmdFirst; hres = m_pDataObj->GetData(&fmte, &medium); if (medium.hGlobal) cbFiles = DragQueryFile((HDROP)medium.hGlobal, (UINT)-1, 0, 0); // InsertMenu(hMenu, indexMenu++, MF_SEPARATOR|MF_BYPOSITION, 0, NULL); // Initialize m_cntOfHWnd to 0 m_cntOfHWnd = 0; HKEY keyhandle; bool showExisting = true; // Check whether "Edit with existing Vim" entries are disabled. if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, "Software\\Vim\\Gvim", 0, KEY_READ, &keyhandle) == ERROR_SUCCESS) { if (RegQueryValueEx(keyhandle, "DisableEditWithExisting", 0, NULL, NULL, NULL) == ERROR_SUCCESS) showExisting = false; RegCloseKey(keyhandle); } // Retrieve all the vim instances, unless disabled. if (showExisting) EnumWindows(EnumWindowsProc, (LPARAM)this); if (cbFiles > 1) { InsertMenu(hMenu, indexMenu++, MF_STRING|MF_BYPOSITION, idCmd++, _("Edit with &multiple Vims")); InsertMenu(hMenu, indexMenu++, MF_STRING|MF_BYPOSITION, idCmd++, _("Edit with single &Vim")); if (cbFiles <= 4) { // Can edit up to 4 files in diff mode InsertMenu(hMenu, indexMenu++, MF_STRING|MF_BYPOSITION, idCmd++, _("Diff with Vim")); m_edit_existing_off = 3; } else m_edit_existing_off = 2; } else { InsertMenu(hMenu, indexMenu++, MF_STRING|MF_BYPOSITION, idCmd++, _("Edit with &Vim")); m_edit_existing_off = 1; } // Now display all the vim instances for (int i = 0; i < m_cntOfHWnd; i++) { char title[BUFSIZE]; char temp[BUFSIZE]; // Obtain window title, continue if can not if (GetWindowText(m_hWnd[i], title, BUFSIZE - 1) == 0) continue; // Truncate the title before the path, keep the file name char *pos = strchr(title, '('); if (pos != NULL) { if (pos > title && pos[-1] == ' ') --pos; *pos = 0; } // Now concatenate strncpy(temp, _("Edit with existing Vim - "), BUFSIZE - 1); temp[BUFSIZE - 1] = '\0'; strncat(temp, title, BUFSIZE - 1 - strlen(temp)); temp[BUFSIZE - 1] = '\0'; InsertMenu(hMenu, indexMenu++, MF_STRING|MF_BYPOSITION, idCmd++, temp); } // InsertMenu(hMenu, indexMenu++, MF_SEPARATOR|MF_BYPOSITION, 0, NULL); // Must return number of menu items we added. return ResultFromShort(idCmd-idCmdFirst); } // // FUNCTION: CShellExt::InvokeCommand(LPCMINVOKECOMMANDINFO) // // PURPOSE: Called by the shell after the user has selected on of the // menu items that was added in QueryContextMenu(). // // PARAMETERS: // lpcmi - Pointer to an CMINVOKECOMMANDINFO structure // // RETURN VALUE: // // // COMMENTS: // STDMETHODIMP CShellExt::InvokeCommand(LPCMINVOKECOMMANDINFO lpcmi) { HRESULT hr = E_INVALIDARG; // If HIWORD(lpcmi->lpVerb) then we have been called programmatically // and lpVerb is a command that should be invoked. Otherwise, the shell // has called us, and LOWORD(lpcmi->lpVerb) is the menu ID the user has // selected. Actually, it's (menu ID - idCmdFirst) from QueryContextMenu(). if (!HIWORD(lpcmi->lpVerb)) { UINT idCmd = LOWORD(lpcmi->lpVerb); if (idCmd >= m_edit_existing_off) { // Existing with vim instance hr = PushToWindow(lpcmi->hwnd, lpcmi->lpDirectory, lpcmi->lpVerb, lpcmi->lpParameters, lpcmi->nShow, idCmd - m_edit_existing_off); } else { switch (idCmd) { case 0: hr = InvokeGvim(lpcmi->hwnd, lpcmi->lpDirectory, lpcmi->lpVerb, lpcmi->lpParameters, lpcmi->nShow); break; case 1: hr = InvokeSingleGvim(lpcmi->hwnd, lpcmi->lpDirectory, lpcmi->lpVerb, lpcmi->lpParameters, lpcmi->nShow, 0); break; case 2: hr = InvokeSingleGvim(lpcmi->hwnd, lpcmi->lpDirectory, lpcmi->lpVerb, lpcmi->lpParameters, lpcmi->nShow, 1); break; } } } return hr; } STDMETHODIMP CShellExt::PushToWindow(HWND /* hParent */, LPCSTR /* pszWorkingDir */, LPCSTR /* pszCmd */, LPCSTR /* pszParam */, int /* iShowCmd */, int idHWnd) { HWND hWnd = m_hWnd[idHWnd]; // Show and bring vim instance to foreground if (IsIconic(hWnd) != 0) ShowWindow(hWnd, SW_RESTORE); else ShowWindow(hWnd, SW_SHOW); SetForegroundWindow(hWnd); // Post the selected files to the vim instance PostMessage(hWnd, WM_DROPFILES, (WPARAM)medium.hGlobal, 0); return NOERROR; } STDMETHODIMP CShellExt::GetCommandString(UINT_PTR /* idCmd */, UINT uFlags, UINT FAR * /* reserved */, LPSTR pszName, UINT cchMax) { if (uFlags == GCS_HELPTEXT && cchMax > 35) lstrcpy(pszName, _("Edits the selected file(s) with Vim")); return NOERROR; } BOOL CALLBACK CShellExt::EnumWindowsProc(HWND hWnd, LPARAM lParam) { char temp[BUFSIZE]; // First do a bunch of check // No invisible window if (!IsWindowVisible(hWnd)) return TRUE; // No child window ??? // if (GetParent(hWnd)) return TRUE; // Class name should be Vim, if failed to get class name, return if (GetClassName(hWnd, temp, sizeof(temp)) == 0) return TRUE; // Compare class name to that of vim, if not, return if (_strnicmp(temp, "vim", sizeof("vim")) != 0) return TRUE; // First check if the number of vim instance exceeds MAX_HWND CShellExt *cs = (CShellExt*) lParam; if (cs->m_cntOfHWnd >= MAX_HWND) return TRUE; // Now we get the vim window, put it into some kind of array cs->m_hWnd[cs->m_cntOfHWnd] = hWnd; cs->m_cntOfHWnd ++; return TRUE; // continue enumeration (otherwise this would be false) } #ifdef WIN32 // This symbol is not defined in older versions of the SDK or Visual C++. #ifndef VER_PLATFORM_WIN32_WINDOWS # define VER_PLATFORM_WIN32_WINDOWS 1 #endif static DWORD g_PlatformId; // // Set g_PlatformId to VER_PLATFORM_WIN32_NT (NT) or // VER_PLATFORM_WIN32_WINDOWS (Win95). // static void PlatformId(void) { static int done = FALSE; if (!done) { OSVERSIONINFO ovi; ovi.dwOSVersionInfoSize = sizeof(ovi); GetVersionEx(&ovi); g_PlatformId = ovi.dwPlatformId; done = TRUE; } } # ifndef __BORLANDC__ static char * searchpath(char *name) { static char widename[2 * BUFSIZE]; static char location[2 * BUFSIZE + 2]; // There appears to be a bug in FindExecutableA() on Windows NT. // Use FindExecutableW() instead... PlatformId(); if (g_PlatformId == VER_PLATFORM_WIN32_NT) { MultiByteToWideChar(CP_ACP, 0, (LPCTSTR)name, -1, (LPWSTR)widename, BUFSIZE); if (FindExecutableW((LPCWSTR)widename, (LPCWSTR)"", (LPWSTR)location) > (HINSTANCE)32) { WideCharToMultiByte(CP_ACP, 0, (LPWSTR)location, -1, (LPSTR)widename, 2 * BUFSIZE, NULL, NULL); return widename; } } else { if (FindExecutableA((LPCTSTR)name, (LPCTSTR)"", (LPTSTR)location) > (HINSTANCE)32) return location; } return (char *)""; } # endif #endif STDMETHODIMP CShellExt::InvokeGvim(HWND hParent, LPCSTR /* pszWorkingDir */, LPCSTR /* pszCmd */, LPCSTR /* pszParam */, int /* iShowCmd */) { wchar_t m_szFileUserClickedOn[BUFSIZE]; wchar_t cmdStrW[BUFSIZE]; UINT i; for (i = 0; i < cbFiles; i++) { DragQueryFileW((HDROP)medium.hGlobal, i, m_szFileUserClickedOn, sizeof(m_szFileUserClickedOn)); getGvimNameW(cmdStrW); wcscat(cmdStrW, L" \""); if ((wcslen(cmdStrW) + wcslen(m_szFileUserClickedOn) + 2) < BUFSIZE) { wcscat(cmdStrW, m_szFileUserClickedOn); wcscat(cmdStrW, L"\""); STARTUPINFOW si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); // Start the child process. if (!CreateProcessW(NULL, // No module name (use command line). cmdStrW, // Command line. NULL, // Process handle not inheritable. NULL, // Thread handle not inheritable. FALSE, // Set handle inheritance to FALSE. oldenv == NULL ? 0 : CREATE_UNICODE_ENVIRONMENT, oldenv, // Use unmodified environment block. NULL, // Use parent's starting directory. &si, // Pointer to STARTUPINFO structure. &pi) // Pointer to PROCESS_INFORMATION structure. ) { MessageBox( hParent, _("Error creating process: Check if gvim is in your path!"), _("gvimext.dll error"), MB_OK); } else { CloseHandle( pi.hProcess ); CloseHandle( pi.hThread ); } } else { MessageBox( hParent, _("Path length too long!"), _("gvimext.dll error"), MB_OK); } } return NOERROR; } STDMETHODIMP CShellExt::InvokeSingleGvim(HWND hParent, LPCSTR /* pszWorkingDir */, LPCSTR /* pszCmd */, LPCSTR /* pszParam */, int /* iShowCmd */, int useDiff) { wchar_t m_szFileUserClickedOn[BUFSIZE]; wchar_t *cmdStrW; size_t cmdlen; size_t len; UINT i; cmdlen = BUFSIZE; cmdStrW = (wchar_t *) malloc(cmdlen * sizeof(wchar_t)); getGvimNameW(cmdStrW); if (useDiff) wcscat(cmdStrW, L" -d"); for (i = 0; i < cbFiles; i++) { DragQueryFileW((HDROP)medium.hGlobal, i, m_szFileUserClickedOn, sizeof(m_szFileUserClickedOn)); len = wcslen(cmdStrW) + wcslen(m_szFileUserClickedOn) + 4; if (len > cmdlen) { cmdlen = len + BUFSIZE; cmdStrW = (wchar_t *)realloc(cmdStrW, cmdlen * sizeof(wchar_t)); } wcscat(cmdStrW, L" \""); wcscat(cmdStrW, m_szFileUserClickedOn); wcscat(cmdStrW, L"\""); } STARTUPINFOW si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); // Start the child process. if (!CreateProcessW(NULL, // No module name (use command line). cmdStrW, // Command line. NULL, // Process handle not inheritable. NULL, // Thread handle not inheritable. FALSE, // Set handle inheritance to FALSE. oldenv == NULL ? 0 : CREATE_UNICODE_ENVIRONMENT, oldenv, // Use unmodified environment block. NULL, // Use parent's starting directory. &si, // Pointer to STARTUPINFO structure. &pi) // Pointer to PROCESS_INFORMATION structure. ) { MessageBox( hParent, _("Error creating process: Check if gvim is in your path!"), _("gvimext.dll error"), MB_OK); } else { CloseHandle(pi.hProcess); CloseHandle(pi.hThread); } free(cmdStrW); return NOERROR; }