#include "BrowseForFolder.h"
#include <Windows.h>
#include <ShlObj.h>
#include <string>
#include <Commdlg.h>
using namespace  std;
int BrowseForFolder::SelectFile(string& path)
{
	TCHAR szBuffer[MAX_PATH] = { 0 };   //存放选择文件的路径 
	BROWSEINFO bi;
	ZeroMemory(&bi, sizeof(BROWSEINFO));
	bi.hwndOwner = NULL;
	bi.pszDisplayName = szBuffer;
	bi.lpszTitle = _T("从下面选择文件或文件夹:");   //_T()是在头文件tchar.h下的一个宏定义。 
	bi.ulFlags = BIF_BROWSEINCLUDEFILES;
	LPITEMIDLIST idl = SHBrowseForFolder(&bi);   //开始选择文件或文件夹
	if (NULL == idl)
	{
		return 0;
	}
	SHGetPathFromIDList(idl, szBuffer);	//获取完整路径，否则szBuffer只会存储当前选择的文件或文件夹名称
	path = TCHAR2STRING(szBuffer);
	return 0;
}
std::string BrowseForFolder::TCHAR2STRING(TCHAR* STR)
{
	int iLen = WideCharToMultiByte(CP_ACP, 0, STR, -1, NULL, 0, NULL, NULL);
	char* chRtn = new char[iLen * sizeof(char)];
	WideCharToMultiByte(CP_ACP, 0, STR, -1, chRtn, iLen, NULL, NULL);
	std::string str(chRtn);
	delete chRtn;
	return str;
}