文件复制问题？

[wangsiyuanoo]

//有时候会弹出系统对话框，问你是否要覆盖已经存在的文件
//如何做可以实现默认的覆盖呢？就是不让这个提示弹出，就是直接覆盖！
bool CopyFolder(LPCTSTR lpszFromPath, LPCTSTR lpszToPath)
{
	int nLengthFrm = strlen(lpszFromPath);
	char *NewPathFrm = new char[nLengthFrm+2];
	strcpy(NewPathFrm,lpszFromPath);
	NewPathFrm[nLengthFrm] = '\0';
	NewPathFrm[nLengthFrm+1] = '\0';

	SHFILEOPSTRUCT FileOp; 
	ZeroMemory((void*)&FileOp,sizeof(SHFILEOPSTRUCT));
	FileOp.fFlags = FOF_SIMPLEPROGRESS;
	FileOp.hNameMappings = NULL; 
	FileOp.hwnd = NULL; 
	FileOp.lpszProgressTitle = NULL; 
	FileOp.pFrom = NewPathFrm; 
	FileOp.pTo = lpszToPath; 
	FileOp.wFunc = FO_COPY; 
	int iRe = SHFileOperation(&FileOp);
	if( 0 == iRe )  
	{
		int iCopySuccess = FileOp.fAnyOperationsAborted;   
		if( 0 != iCopySuccess )
			return false;
	}

	delete []NewPathFrm;
	return true;
}

[oyster2008]

FileOp.fFlags = FOF_SIMPLEPROGRESS|FOF_NOCONFIRMATION;

[Allen_zhang]

还有一种做法。先判断是否有那个文件，先将那个文件删掉

[jingzhongrong]

加上FOF_NOCONFIRMATION，所有的对话框会以“全部都是”进行操作。