/// <summary>
/// Specifies a common dialog box.
/// </summary>
/// <param name="hwndOwner">A value that represents the window handle of the owner window for the common dialog box.</param>
/// <returns><see langword="true" /> if the file could be opened; otherwise, <see langword="false" />.</returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
if (_downlevelDialog != null)
{
return(_downlevelDialog.ShowDialog(hwndOwner == IntPtr.Zero ? null : new API.WindowHandleWrapper(hwndOwner)) == DialogResult.OK);
}
API.IFileDialog dialog = null;
try
{
dialog = new API.NativeFileOpenDialog();
SetDialogProperties(dialog);
int result = dialog.Show(hwndOwner);
if (result < 0)
{
if ((uint)result == (uint)API.HRESULT.ERROR_CANCELLED)
{
return(false);
}
else
{
throw System.Runtime.InteropServices.Marshal.GetExceptionForHR(result);
}
}
GetResult(dialog);
return(true);
}
finally
{
if (dialog != null)
{
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dialog);
}
}
}
/// <summary>
/// Specifies a common dialog box.
/// </summary>
/// <param name="hwndOwner">A value that represents the window handle of the owner window for the common dialog box.</param>
/// <returns><see langword="true" /> if the file could be opened; otherwise, <see langword="false" />.</returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
if( _downlevelDialog != null )
return _downlevelDialog.ShowDialog(hwndOwner == IntPtr.Zero ? null : new API.WindowHandleWrapper(hwndOwner)) == DialogResult.OK;
API.IFileDialog dialog = null;
try
{
dialog = new API.NativeFileOpenDialog();
SetDialogProperties(dialog);
int result = dialog.Show(hwndOwner);
if( result < 0 )
{
if( (uint)result == (uint)API.HRESULT.ERROR_CANCELLED )
return false;
else
throw System.Runtime.InteropServices.Marshal.GetExceptionForHR(result);
}
GetResult(dialog);
return true;
}
finally
{
if( dialog != null )
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dialog);
}
}
