var util = m_Map.GetUtility();
var filename = util.FileDialog("이미지 저장", "C:\\", "MapImage.png", "Windows Bitmap Image (*.bmp)|*.BMP|PNG Image (*.png)|*.PNG|Jpeg Image (*.jpg)|*.JPG");    
 
var temp = util.ExtractFileExt(filename);

alert("File 확장자 : " +  temp);

#include "CXUtility.h"

CXUtility util = m_Map.GetUtility();
CString filename = util.FileDialog(_T("이미지 저장", _T("C:\\"), _T("MapImage.png"), _T(""Windows Bitmap Image (*.bmp)|*.BMP|PNG Image (*.png)|*.PNG|Jpeg Image (*.jpg)|*.JPG"));

CString temp = util.ExtractFileExt(filename);
AfxMessageBox(temp);