1. 标准的文件夹选择对话框：可以使用在非MFC程序中，调用的标准API SHBrowserForFolder。
源码：
[cpp]
#include "shlobj.h"
#include

// Function name : GetFolder
// Description : Open and get Folder Dialog.
// Return type : true means click ok, false mean no select and cancel.
// Argument : folder path reference
// Argument : dialog window caption
// Argument : parent window handle
bool GetFolder(std::string& folderpath, const char* szCaption = NULL, HWND hOwner = NULL)
{
bool retVal = false;

// The BROWSEINFO struct tells the shell
// how it should display the dialog.
BROWSEINFO bi;
memset(&bi, 0, sizeof(bi));
bi.ulFlags = BIF_USENEWUI;
bi.hwndOwner = hOwner;
bi.lpszTitle = szCaption;

// must call this if using BIF_USENEWUI
::OleInitialize(NULL);

// Show the dialog and get the itemIDList for the selected folder.
LPITEMIDLIST pIDL = ::SHBrowseForFolder(&bi);

if(pIDL != NULL)
{
// Create a buffer to store the path, then get the path.
char buffer[_MAX_PATH] = {'\0'};
if(::SHGetPathFromIDList(pIDL, buffer) != 0)
{
// Set the string value.
folderpath = buffer;
retVal = true;
}

// free the item id list
CoTaskMemFree(pIDL);
}

::OleUninitialize();

return retVal;
}

调用：
[cpp]
std::string szPath("");

if (GetFolder(szPath, "Select a folder.") == true)
{
printf("You selected: \"%s\".\n", szPath.c_str());
}
else
{
printf("No folder selected!\n");
}

界面：

2. 带导航栏的文件夹选择对话框：只在MFC程序中使用，从MFC的CFileDialog派生。

源码-头文件-Folder_dialog.h：

[cpp]print #pragma once

// CFolderDialog dialog
class CFolderDialog : public CFileDialog
{
DECLARE_DYNAMIC(CFolderDialog)

public:
CFolderDialog(CString* pPath, CWnd* pParentWnd = NULL);
static WNDPROC m_wndProc;
CString* m_pPath;

protected:
DECLARE_MESSAGE_MAP()

private:
virtual void OnInitDone();
virtual void OnFileNameChange();
virtual void OnFolderChange();
void ChangeFolder();
};
#pragma once

// CFolderDialog dialog
class CFolderDialog : public CFileDialog
{
DECLARE_DYNAMIC(CFolderDialog)

public:
CFolderDialog(CString* pPath, CWnd* pParentWnd = NULL);
static WNDPROC m_wndProc;
CString* m_pPath;

protected:
DECLARE_MESSAGE_MAP()

private:
virtual void OnInitDone();
virtual void OnFileNameChange();
virtual void OnFolderChange();
void ChangeFolder();
};
源码-Folder_dialog.cpp: