Copy folder under the same type of file (CopyFile)

This example enables a TXT file under a folder to be copied to the destination folder. The method is to traverse the source folder and, if it is a TXT file, copy it.

int Ctestcsdndlg::copyfileex (CString strsrcpath, CString strext, CString Strdespath)

{

CFileFind FF;

CString szdir = Strsrcpath;

CString strsize = _t ("");

if (Szdir.right (1)! = "//")

Szdir + = "//";

Szdir + = "* *";

BOOL res = ff. FindFile (Szdir);

while (RES)

{

res = ff. FindNextFile ();

if (ff. Isdirectory () &&!ff. Isdots ())//Folder

{

CString Strfolderpath = ff. GetFilePath ();

CopyFileEx (Strfolderpath, Strext, Strdespath);

}

else if (!ff. Isdirectory () &&!ff. Isdots ())//File

{

To determine the extension name

CString strFileName = ff. GetFileName ();

int NPos;

NPos = Strfilename.reversefind (_t ('. '));

CString Strfileext;

Strfileext = Strfilename.right (Strfilename.getlength ()-nPos-1);

if (Strfileext = = Strext)

{

Copying files

CString strFilePath;

strFilePath = ff. GetFilePath ();

CString Strnewfilepath;

Strnewfilepath = Strdespath + _t ("//") + strFileName;

:: CopyFile (strFilePath, Strnewfilepath, FALSE);

}

}

}

Ff. Close ();

return 0;

}

How to use:
CopyFileEx (_t ("E://test"), _t ("txt"), _t ("E://test 2"));
First parameter: source path
Second parameter: extension
Third parameter: Destination path

If the copy includes subfolders, use the following method:

Modify this snippet:

if (ff. Isdirectory () &&!ff. Isdots ())//Folder
{
CString Strfolderpath = ff. GetFilePath ();
CString strfoldername = ff. GetFileName ();
CString Strdestsubfolder = Strdespath + _t ("//") + strFolderName;
CreateDirectory (Strdestsubfolder, NULL);
CopyFileEx (Strfolderpath, Strext, Strdestsubfolder);
}