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VC中没有现成的函数来选择一个文件夹，但这是经常会用到的，怎么办？
自动动手，丰衣足食！
使用SHBrowseForFolder，代码如下：
#include <Shlobj.h>
int SelFolder(HWND hParent, CString &strFolder)
{
strFolder.Empty();
LPMALLOC lpMalloc;
if (::SHGetMalloc(&lpMalloc) != NOERROR) return 0;
char szDisplayName[_MAX_PATH];
char szBuffer[_MAX_PATH];
BROWSEINFO browseInfo;
browseInfo.hwndOwner = hParent;
browseInfo.pidlRoot = NULL; // set root at Desktop
browseInfo.pszDisplayName = szDisplayName;
browseInfo.lpszTitle = "Select a folder";
browseInfo.ulFlags = BIF_RETURNFSANCESTORS|BIF_RETURNONLYFSDIRS;
browseInfo.lpfn = NULL;
browseInfo.lParam = 0;
LPITEMIDLIST lpItemIDList;
if ((lpItemIDList = ::SHBrowseForFolder(&browseInfo)) != NULL)
{
// Get the path of the selected folder from the item ID list.
if (::SHGetPathFromIDList(lpItemIDList, szBuffer))
{
// At this point, szBuffer contains the path the user chose.
if (szBuffer[0] == '\0') return 0;
// We have a path in szBuffer! Return it.
strFolder = szBuffer;
return 1;
}
else return 1; // strResult is empty
lpMalloc->Free(lpItemIDList);
lpMalloc->Release();
}
return 1;
}
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