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109 lines
3.4 KiB
109 lines
3.4 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: openfile.cpp
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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//
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// Open a file using ShellExecuteEx and the "open" verb.
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//
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DWORD
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OpenOfflineFile(
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LPCTSTR pszFile
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)
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{
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DWORD dwErr = ERROR_SUCCESS;
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TCHAR szFullPath[MAX_PATH];
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lstrcpyn(szFullPath, pszFile, ARRAYSIZE(szFullPath));
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if (TEXT('\0') != szFullPath[0])
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{
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//
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// Have CSC create a local copy. It creates the file with a
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// unique (and cryptic) name.
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//
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LPTSTR pszCscLocalName = NULL;
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if (!CSCCopyReplica(szFullPath, &pszCscLocalName))
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{
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dwErr = GetLastError();
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}
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else
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{
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TraceAssert(NULL != pszCscLocalName);
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//
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// Combine the temporary path and the original filespec to form
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// a name that will be meaningful to the user when the file is opened
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// in it's application.
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//
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TCHAR szCscTempName[MAX_PATH];
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lstrcpyn(szCscTempName, pszCscLocalName, ARRAYSIZE(szCscTempName));
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::PathRemoveFileSpec(szCscTempName);
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::PathAppend(szCscTempName, ::PathFindFileName(szFullPath));
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lstrcpyn(szFullPath, szCscTempName, ARRAYSIZE(szFullPath));
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//
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// Remove any read-only attribute in case there's still a copy left
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// from a previous "open" operation. We'll need to overwrite the
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// existing copy.
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//
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DWORD dwAttrib = GetFileAttributes(szFullPath);
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if ((DWORD)-1 != dwAttrib)
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{
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SetFileAttributes(szFullPath, dwAttrib & ~FILE_ATTRIBUTE_READONLY);
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}
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//
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// Rename the file to use the proper name.
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//
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if (!MoveFileEx(pszCscLocalName, szFullPath, MOVEFILE_REPLACE_EXISTING))
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{
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dwErr = GetLastError();
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}
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else
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{
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//
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// Set the file's READONLY bit so that the user can't save
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// changes to the file. They can, however, save it somewhere
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// else from within the opening app if they want.
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//
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dwAttrib = GetFileAttributes(szFullPath);
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if (!SetFileAttributes(szFullPath, dwAttrib | FILE_ATTRIBUTE_READONLY))
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{
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dwErr = GetLastError();
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}
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}
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LocalFree(pszCscLocalName);
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}
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//
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// If after all that... we don't have an error, then we
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// can try to open it.
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//
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if (ERROR_SUCCESS == dwErr)
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{
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SHELLEXECUTEINFO si;
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ZeroMemory(&si, sizeof(si));
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si.cbSize = sizeof(si);
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si.fMask = SEE_MASK_FLAG_NO_UI;
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si.hwnd = NULL;
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si.lpFile = szFullPath;
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si.lpVerb = NULL; // default to "Open".
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si.lpParameters = NULL;
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si.lpDirectory = NULL;
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si.nShow = SW_NORMAL;
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if (!ShellExecuteEx(&si))
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{
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dwErr = GetLastError();
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}
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}
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}
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return dwErr;
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}
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