CFileDialog 打开文件夹文件 保存文件夹文件

       Either a File Open or File Save As dialog box is constructed, depending on the value ofbOpenFileDialog.

To enable the user to select multiple files, set the OFN_ALLOWMULTISELECT flag before you callDoModal.

You must supply your own file name buffer to store the returned list of multiple file names. Do this by replacing

m_ofn.lpstrFile with a pointer to a buffer you have allocated, after you construct theCFileDialog, but before you call

DoModal. Additionally, you must set m_ofn.nMaxFile with the number of characters in the buffer pointed to by

m_ofn.lpstrFile. If you set the maximum number of files to be selected ton, the necessary buffer size isn*

(_MAX_PATH + 1) + 1.

实例1 打开文件：

 // Create dialog to open multiple files. CFileDialog dlg(TRUE, _T("txt"), _T("*.txt"), OFN_ALLOWMULTISELECT); // Create buffer for file names. const DWORD numberOfFileNames = 100; const DWORD fileNameMaxLength = MAX_PATH + 1; const DWORD bufferSize = (numberOfFileNames * fileNameMaxLength) + 1; TCHAR* filenamesBuffer = new TCHAR[bufferSize]; // Initialize beginning and end of buffer. filenamesBuffer[0] = NULL; filenamesBuffer[bufferSize-1] = NULL; // Attach buffer to OPENFILENAME member. dlg.m_ofn.lpstrFile = filenamesBuffer; dlg.m_ofn.nMaxFile = bufferSize; // Create array for file names. CString fileNameArray[numberOfFileNames]; if(dlg.DoModal() == IDOK) { // Retrieve file name(s). POSITION fileNamesPosition = dlg.GetStartPosition(); int iCtr = 0; while(fileNamesPosition != NULL) { fileNameArray[iCtr] = dlg.GetNextPathName(fileNamesPosition); iCtr++; } } // Release file names buffer. delete[] filenamesBuffer;

实例2 打开文件：

CFileDialog dlg( TRUE, "*", "*.xyz", OFN_FILEMUSTEXIST|OFN_HIDEREADONLY|OFN_ALLOWMULTISELECT, "All Files(*.xyz|*.xyz||" ); char szbuffer[1024]; szbuffer[0]=0; dlg.m_ofn.lpstrFile = szbuffer; dlg.m_ofn.nMaxFile = 1024; if(IDOK==dlg.DoModal()) { POSITION pos = dlg.GetStartPosition(); CString filepath; while(pos!=NULL) { filepath = dlg.GetNextPathName(pos); } }

实例3 打开文件：

CString filePath; char fileName[256]; char filter[] = "GEO Files(*.GEO)|*.GEO|All Files(*.*)|*.*||"; UpdateData(TRUE); CFileDialog fdlg(TRUE, "bmp", NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, szFilter ); strcpy(FileName, _T("文件")); if ( IDOK != cf.DoModal()) return; filePath = fdlg.GetPathName(); // filePath即为所打开的文件的路径 UpdateData(FALSE);

 实例4 打开文件，并设置对话框标题

	CFileDialog nFileDlg(TRUE,L"xml",L"",OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,L"XML文件(*.xml)|*.xml||");
	nFileDlg.m_pOFN->lpstrTitle=L"打开空白任务"; //文件对话框标题
	if(nFileDlg.DoModal()==IDOK)
	{
		m_PicFolder=L"Blank";
		m_XMLFolder=L"Blank";

		CString szXmlFilePath;
		CString szXmlParentPath;
		CString nXMLFileName;

		szXmlFilePath=nFileDlg.GetPathName();  //  绝对路径文件名称
		nXMLFileName=nFileDlg.GetFileName();   //  不带路径的文件名称
		szXmlParentPath=szXmlFilePath.Left(szXmlFilePath.GetLength()-nXMLFileName.GetLength()-1);  //文件所在的父文件夹


	}

实例5  保存文件：

char FileName[256]; CString Title, FmtString; CString PathName; CString path_and_fileName; UpdateData(TRUE); PathName=_T("path.xml"); char BASED_CODE szFilter[] = "XML Files(*.xml)|*.XML|All Files(*.*)|*.*||"; CFileDialog fdlg(FALSE, "XML", PathName, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, szFilter ); strcpy(FileName, _T("文件名称")); if ( IDOK != fdlg.DoModal() ) return; path_and_fileName= fdlg.GetPathName(); //path_and_fileName即为文件保存路径 UpdateData(FALSE);

 以上是使用 CFileDialog打开文件，以下是使用SHBrowseForFolder打开路径：

OnBnClickedButton1()
{
	BROWSEINFO bi;
	ZeroMemory(&bi,sizeof(BROWSEINFO));
	LPMALLOC pMalloc;
	LPITEMIDLIST pidl = SHBrowseForFolder(&bi);

	if (pidl==NULL)
		return;

	if(pidl != NULL)
	{
		TCHAR * path = new TCHAR[MAX_PATH];	

		SHGetPathFromIDList(pidl,path);
		//		MessageBox(NULL,path,TEXT("Choose"),MB_OK);
		if(SUCCEEDED(SHGetMalloc(&pMalloc)))//pidl指向的对象用完应该释放，之前忽略了
		{
			pMalloc->Free(pidl);
			pMalloc->Release();
		}
		m_Path=path;
		UpdateData(FALSE);	

		delete [] path;
	}





}