public string BrowseDestination(Window owner, string destination, string extension)
{
using (var dialog = new FileSaveDialog())
{
GetFilePathInfo(destination, out var folderPath, out var fileName, out var fileExtension);
dialog.SetClientGuid(new Guid("486640B6-B311-4EFD-A15F-616F51FAAF5B"));
dialog.SetDefaultFolder(Environment.GetFolderPath(Environment.SpecialFolder.Desktop));
dialog.SetTitle("Destination file of the image to be created");
dialog.SetOkButtonLabel("Select");
dialog.SetCancelButtonLabel("Cancel");
dialog.SetFileNameLabel("Destination file :");
dialog.SetDefaultExtension(extension.Substring(1));
dialog.SetFileTypes($"Image files (*{extension})|*{extension}|All files (*.*)|*.*");
dialog.SetFileTypeIndex(fileExtension == null || fileExtension.Equals(extension, StringComparison.OrdinalIgnoreCase) ? 1 : 2);
dialog.DontAddToRecent = true;
if (fileName != null)
{
dialog.SetFileName(fileName);
}
if (PathHelper.DirectoryExists(folderPath))
{
dialog.SetFolder(folderPath);
}
return(dialog.ShowDialog(owner) == true?dialog.GetResult() : null);
}
}
int NativeInterfaces.IFileDialogEvents.OnFileOk(NativeInterfaces.IFileDialog pfd)
{
int hr = NativeConstants.S_OK;
NativeInterfaces.IShellItem shellItem = null;
if (NativeMethods.SUCCEEDED(hr))
{
hr = FileSaveDialog.GetResult(out shellItem);
}
if (!NativeMethods.SUCCEEDED(hr))
{
throw Marshal.GetExceptionForHR(hr);
}
string pathName = null;
try
{
shellItem.GetDisplayName(NativeConstants.SIGDN.SIGDN_FILESYSPATH, out pathName);
}
finally
{
if (shellItem != null)
{
try
{
Marshal.ReleaseComObject(shellItem);
}
catch (Exception)
{
}
shellItem = null;
}
}
string pathNameResolved = ResolveName(pathName);
NativeInterfaces.IOleWindow oleWindow = (NativeInterfaces.IOleWindow)pfd;
try
{
IntPtr hWnd = IntPtr.Zero;
oleWindow.GetWindow(out hWnd);
Win32Window win32Window = new Win32Window(hWnd, oleWindow);
// File name/path validation
if (hr >= 0)
{
try
{
// Verify that these can be parsed correctly
string fileName = Path.GetFileName(pathNameResolved);
string dirName = Path.GetDirectoryName(pathNameResolved);
}
catch (Exception ex)
{
if (!FileDialogUICallbacks.ShowError(win32Window, pathNameResolved, ex))
{
throw;
}
hr = NativeConstants.S_FALSE;
}
}
if (hr >= 0)
{
// Overwrite existing file
if (!OverwritePrompt)
{
hr = NativeConstants.S_OK;
}
else if (File.Exists(pathNameResolved))
{
FileOverwriteAction action = FileDialogUICallbacks.ShowOverwritePrompt(win32Window, pathNameResolved);
switch (action)
{
case FileOverwriteAction.Cancel:
hr = NativeConstants.S_FALSE;
break;
case FileOverwriteAction.Overwrite:
hr = NativeConstants.S_OK;
break;
default:
throw new InvalidEnumArgumentException();
}
}
}
}
catch (Exception)
{
}
finally
{
try
{
Marshal.ReleaseComObject(oleWindow);
}
catch (Exception)
{
}
oleWindow = null;
}
return(hr);
}
