SOFTIST 编程方法筆記 →目录

文件目录操作

１．创建目录（ＡＰＩ）

BOOL CreateDirectory(LPCTSTR pstrDirName);//pstrDirName是全路径

２．删除目录（ＡＰＩ）

BOOL RemoveDirectory( LPCTSTR lpPathName );

３．判断目录是否存在（Shell Function）

#include <shlwapi.h>
#pragma comment(lib, "shlwapi.lib")   
if (PathIsDirectory(_T("d:\\temp")))
    AfxMessageBox(_T("存在"));
else
    AfxMessageBox(_T("不存在"));

４．取得当前目录（ＡＰＩ）

DWORD GetCurrentDirectory( DWORD nBufferLength, LPTSTR lpBuffer );

５．取得执行文件所在目录（ＡＰＩ）

DWORD GetModuleFileName( HMODULE hModule, LPTSTR lpFilename, DWORD nSize );

６．取得功能目录（Shell Function）

BOOL SHGetSpecialFolderPath( HWND hwndOwner,  LPTSTR lpszPath, int nFolder, BOOL fCreate);

例：读取我的档案目录

    TCHAR szDirFile[1024];
    memset(szDirFile, 0, sizeof(szDirFile));
    BOOL bRet = SHGetSpecialFolderPath(NULL,szDirFile,CSIDL_PERSONAL,true);
    if (bRet)
    {
        AfxMessageBox(szDirFile);
    }

７．选择目录用的对话框界面

利用Shell Function可以打出选择目录用的对话框界面

#include<shlobj.h>
INT CALLBACK _BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM pData) 
{
    TCHAR szDir[MAX_PATH];
    switch(uMsg) 
    {
    case BFFM_INITIALIZED: 
        // WParam is TRUE since you are passing a path.
        // It would be FALSE if you were passing a pidl.
        SendMessage(hwnd, BFFM_SETSELECTION, TRUE, (LPARAM)pData);
        break;
    case BFFM_SELCHANGED: 
        // Set the status window to the currently selected path.
        if (SHGetPathFromIDList((LPITEMIDLIST)lParam ,szDir))
        {
            SendMessage(hwnd,BFFM_SETSTATUSTEXT,0,(LPARAM)szDir);
        }
        break;
    }
    return 0;
}

CString GetFolderFullpath(LPCTSTR lpszDefault)
{
    TCHAR buffDisplayName[MAX_PATH];
    TCHAR fullpath[MAX_PATH];
    BROWSEINFO  browseinfo;
    LPITEMIDLIST lpitemidlist;

    ZeroMemory(&browseinfo, sizeof( BROWSEINFO ));
    browseinfo.pszDisplayName = buffDisplayName ;
    browseinfo.lpszTitle = _T("请选择目录");
    browseinfo.ulFlags = BIF_RETURNONLYFSDIRS;
    browseinfo.lParam = (LPARAM)lpszDefault;
    browseinfo.lpfn = _BrowseCallbackProc;

    if(!(lpitemidlist = SHBrowseForFolder(&browseinfo)))
    {
        AfxMessageBox(_T("没有选择目录"));
        return CString(_T(""));
    }
    else
    {
        SHGetPathFromIDList(lpitemidlist, fullpath);       
        CoTaskMemFree(lpitemidlist); 
        return CString(fullpath);
    }
}

void CTest77Dlg::OnBnClickedButton1()
{
    CString strFolderFullpath = GetFolderFullpath(_T("d:\\Temp"));
    if (strFolderFullpath != _T(""))
        AfxMessageBox(strFolderFullpath);
}