文件资源管理器

1. 选中一个文件夹

程序源码：

/*关键头文件*/
#include <shlobj.h>		
#include <atlstr.h>

string SelectSingleDirectory()
{
	CString strPath(_T(""));
	BROWSEINFO  bi;
	bi.hwndOwner = NULL;
	bi.pidlRoot = CSIDL_DESKTOP;				//文件夹的根目录，此处为桌面
	bi.pszDisplayName = NULL;
	bi.lpszTitle = _T("请选择一个文件夹");		//显示位于对话框左上部的提示信息
	bi.ulFlags = BIF_DONTGOBELOWDOMAIN | BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE;	//有新建文件夹按钮
	bi.lpfn = NULL;
	bi.iImage = 0;
	LPITEMIDLIST pidl = SHBrowseForFolder(&bi);	//调用选择对话框
	if (pidl == NULL)
	{
		std::cout << "You havn't chosen any file!" << std::endl;
		return string(CW2A(strPath.GetBuffer()));
	}
	TCHAR strFolder[1024];
	SHGetPathFromIDList(pidl, strFolder);
	strPath = strFolder;
	return string(CW2A(strPath.GetBuffer()));
}

使用说明：

结果截图：

2.选中一个文件

程序源码：

/*关键头文件*/
#include <atlstr.h>

std::string SelectSingleFile()
{
	std::string res = "";
	TCHAR tmp[MAX_PATH] = { 0 };
	GetCurrentDirectory(MAX_PATH, tmp); //取出当前的工作目录，保存到临时变量tmp中

	TCHAR szBuffer[MAX_PATH] = { 0 };
	OPENFILENAME ofn = { 0 };
	ofn.lStructSize = sizeof(ofn);
	ofn.hwndOwner = NULL;
	ofn.lpstrFilter = _T(" *.flt\0*.flt\0  *.osg\0*.osg\0  *.ive\0*.ive\0  All Files(*.*)\0*.*\0");  //要选择的文件后缀 
	ofn.lpstrInitialDir = _T("F:\\Program\\Creator_flt\\");             //默认的文件路径 
	ofn.lpstrFile = szBuffer;       //存放文件的缓冲区
	ofn.nMaxFile = sizeof(szBuffer) / sizeof(*szBuffer);
	ofn.nFilterIndex = 0;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_EXPLORER;  //标志如果是多选要加上OFN_ALLOWMULTISELECT
	if (GetOpenFileName(&ofn) == 1)
	{
		res = CW2A(ofn.lpstrFile);  //将宽字符集（Unicode）转化为多字符集（ASCII）
		SetCurrentDirectory(tmp);   //将tmp中的工作目录恢复，不恢复的后果就是程序运行的默认workspace将变成你刚选择的文件所在的目录下！！
	}
	else
	{
		std::cout << "You havn't chosen any file!" << std::endl;
	}

	return res;
}

使用说明：

运行截图：

3.选中多个文件

程序源码：

/*关键头文件*/
#include <atlstr.h>

vector<string> SelectMultiFiles()
{
	TCHAR* iter = NULL;
	OPENFILENAME ofn = { 0 };
	TCHAR szDirectory[MAX_PATH] = {0};		//存放解析出的目录
	TCHAR szBuffer[80 * MAX_PATH] = {0};	//在此设置最大支持的文件数
	vector<string> res;		//存放结果

	ofn.lStructSize = sizeof(ofn);
	ofn.hwndOwner = NULL;
	ofn.lpstrFilter = _T("All Files(*.*)\0*.*\0");				//要选择的文件后缀 
	ofn.lpstrInitialDir = _T("F:\\Program\\Creator_flt\\");     //默认的文件路径 
	ofn.lpstrFile = szBuffer;       //存放文件的缓冲区
	ofn.nMaxFile = sizeof(szBuffer) / sizeof(*szBuffer);
	ofn.nFilterIndex = 0;
	ofn.Flags = OFN_EXPLORER | OFN_ALLOWMULTISELECT;
	if (GetOpenFileName(&ofn) == 1)
	{
		lstrcpyn(szDirectory, szBuffer, ofn.nFileOffset);
		lstrcat(szDirectory, _T("\\"));

		iter = szBuffer + ofn.nFileOffset; //把指针指向第一个文件

		while(*iter)
		{
			CString path = szDirectory;
			path += iter;
			string tmpPath = CW2A(path.GetBuffer());
			res.push_back(tmpPath);

			iter += (lstrlen(iter) + 1);			//移至下一个文件
		}
	}
	else
	{
		std::cout << "You havn't chosen any file!" << std::endl;
	}
	return res;
}

使用说明：

运行截图：

4.查找文件夹下指定格式的文件

程序源码：

/*关键头文件*/
#include <io.h>

vector<string> findFilesFrom(string directory)
{
	directory += '\\';
	string fileName;
	vector<string> res;
	struct _finddata_t fileInfo;
	string targetFormat = directory + "*.cpp";	//目标格式
	long findHandle = _findfirst(targetFormat.c_str(), &fileInfo);
	if (findHandle == -1)
	{
		cout << "There dont have any target format files existed!" << endl;
		_findclose(findHandle);
		return res;
	}
	do
	{
		fileName = directory + fileInfo.name;
		if (fileInfo.attrib == _A_ARCH)
		{
			res.push_back(fileName);
		}
	} while (_findnext(findHandle, &fileInfo) == 0);

	_findclose(findHandle);

	return res;
}