public bool?ShowDialog()
{
var openFileName = new OpenFileName();
Window window = Application.Current.Windows.OfType <Window>().Where(w => w.IsActive).FirstOrDefault();
if (window != null)
{
var wih = new WindowInteropHelper(window);
IntPtr hWnd = wih.Handle;
openFileName.hwndOwner = hWnd;
}
openFileName.structSize = Marshal.SizeOf(openFileName);
openFileName.filter = MakeFilterString(Filter);
openFileName.filterIndex = FilterIndex;
openFileName.fileTitle = new string(new char[64]);
openFileName.maxFileTitle = openFileName.fileTitle.Length;
openFileName.initialDir = InitialDirectory;
openFileName.title = Title;
openFileName.defExt = DefaultExt;
openFileName.structSize = Marshal.SizeOf(openFileName);
openFileName.flags |= FOS.NOTESTFILECREATE | FOS.OVERWRITEPROMPT;
if (RestoreDirectory)
{
openFileName.flags |= FOS.NOCHANGEDIR;
}
// lpstrFile
// Pointer to a buffer used to store filenames. When initializing the
// dialog, this name is used as an initial value in the File Name edit
// control. When files are selected and the function returns, the buffer
// contains the full path to every file selected.
char[] chars = new char[FILEBUFSIZE];
for (int i = 0; i < FileName.Length; i++)
{
chars[i] = FileName[i];
}
openFileName.file = new string(chars);
// nMaxFile
// Size of the lpstrFile buffer in number of Unicode characters.
openFileName.maxFile = FILEBUFSIZE;
if (LibWrap.GetSaveFileName(openFileName))
{
FileName = openFileName.file;
return(true);
}
return(false);
}
public static extern bool GetSaveFileName([In, Out] OpenFileName ofn);
