/// <summary>
/// Runs the dialog.
/// </summary>
/// <param name="owner">The owner.</param>
/// <returns></returns>
private DialogResult RunDialog(IWin32Window owner)
{
_ownerWindow = owner;
InitializeDialog();
//show the dialog
bool result = this.DialogType == VersionFileDialogType.OpenFileDialog ? NativeMethods.GetOpenFileName(ref openFileName) : NativeMethods.GetSaveFileName(ref openFileName);
if (!result)
{
int ret = NativeMethods.CommDlgExtendedError();
if (ret != 0)
{
throw new ApplicationException("Couldn't show file open dialog - " + ret.ToString());
}
return(DialogResult.Cancel);
}
if (_selectedVersionIndex < 0 && this.VersionIsRequired)
{
throw new VersionNotSelectedException();
}
this.charBuffer = null;
if (openFileName.lpstrFile != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(openFileName.lpstrFile);
}
return(DialogResult.OK);
}
/// <summary>
/// Gets the multiselect files.
/// </summary>
/// <param name="charBuffer">The char buffer.</param>
/// <returns></returns>
private string[] GetMultiselectFiles(NativeMethods.CharBuffer charBuffer)
{
string text1 = charBuffer.GetString();
string text2 = charBuffer.GetString();
if (text2.Length == 0)
{
return(new string[] { text1 });
}
if (text1[text1.Length - 1] != '\\')
{
text1 = text1 + @"\";
}
ArrayList list1 = new ArrayList();
while (true)
{
if ((text2[0] != '\\') && (((text2.Length <= 3) || (text2[1] != ':')) || (text2[2] != '\\')))
{
text2 = text1 + text2;
}
list1.Add(text2);
text2 = charBuffer.GetString();
if (text2.Length <= 0)
{
string[] textArray1 = new string[list1.Count];
list1.CopyTo(textArray1, 0);
return(textArray1);
}
}
}
/// <summary>
/// Initializes the dialog.
/// </summary>
private void InitializeDialog()
{
openFileName = new OpenFileName();
this.charBuffer = NativeMethods.CharBuffer.CreateBuffer(0x2000);
openFileName.lStructSize = Marshal.SizeOf(openFileName);
openFileName.lpstrFilter = Filter.Replace('|', '\0') + '\0';
openFileName.lpstrFile = this.charBuffer.AllocCoTaskMem();
openFileName.nMaxFile = 0x2000;
if (_fileNames != null && _fileNames.Length > 0 && !string.IsNullOrEmpty(_fileNames[0]))
{
openFileName.lpstrFileTitle = System.IO.Path.GetFileName(_fileNames[0]) + new string ( '\0', 512 );
}
else
{
openFileName.lpstrFileTitle = new string ( '\0', 512 );
}
openFileName.nMaxFileTitle = openFileName.lpstrFileTitle.Length;
if (this.DialogType == VersionFileDialogType.OpenFileDialog && string.IsNullOrEmpty(this._title))
{
openFileName.lpstrTitle = "Open File";
}
else if (this.DialogType == VersionFileDialogType.SaveFileDialog && string.IsNullOrEmpty(this._title))
{
openFileName.lpstrTitle = "Save File As...";
}
else
{
openFileName.lpstrTitle = this._title;
}
if (this.DialogType == VersionFileDialogType.OpenFileDialog && string.IsNullOrEmpty(this.OkButtonText))
{
this.OkButtonText = "&Open";
}
else if (this.DialogType == VersionFileDialogType.SaveFileDialog && string.IsNullOrEmpty(this.OkButtonText))
{
this.OkButtonText = "&Save";
}
if (string.IsNullOrEmpty(this.CancelButtonText))
{
this.CancelButtonText = "&Cancel";
}
openFileName.lpstrDefExt = _defaultExt;
//position the dialog above the active window
openFileName.hwndOwner = _ownerWindow != null ? _ownerWindow.Handle : IntPtr.Zero;
//we need to find out the active screen so the dialog box is
//centred on the correct display
_activeScreen = Screen.FromControl(Form.ActiveForm);
SetDialogFlags();
//this is where the hook is set. Note that we can use a C# delegate in place of a C function pointer
openFileName.lpfnHook = new WndHookProc(HookProc);
//if we're running on Windows 98/ME then the struct is smaller
if (System.Environment.OSVersion.Platform != PlatformID.Win32NT)
{
openFileName.lStructSize -= 12;
}
}
