/// <summary>
/// Dispose TaskDialog Resources
/// </summary>
/// <param name="disposing">If true, indicates that this is being called via Dispose rather than via the finalizer.</param>
public void Dispose(bool disposing)
{
if (!disposed)
{
disposed = true;
if (disposing)
{
// Clean up managed resources.
if (nativeDialog != null && nativeDialog.ShowState == DialogShowState.Showing)
{
nativeDialog.NativeClose(TaskDialogResult.Cancel);
}
buttons = null;
radioButtons = null;
commandLinks = null;
}
// Clean up unmanaged resources SECOND, NTD counts on
// being closed before being disposed.
if (nativeDialog != null)
{
nativeDialog.Dispose();
nativeDialog = null;
}
if (staticDialog != null)
{
staticDialog.Dispose();
staticDialog = null;
}
}
}
internal void UpdateProgressBarRange()
{
AssertCurrentlyShowing();
// Build range LPARAM - note it is in REVERSE intuitive order.
long range = NativeTaskDialog.MakeLongLParam(
settings.ProgressBarMaximum,
settings.ProgressBarMinimum);
SendMessageHelper(TaskDialogNativeMethods.TaskDialogMessages.SetProgressBarRange, 0, range);
}
private TaskDialogResult ShowCore()
{
TaskDialogResult result;
try
{
// Populate control lists, based on current
// contents - note we are somewhat late-bound
// on our control lists, to support XAML scenarios.
SortDialogControls();
// First, let's make sure it even makes
// sense to try a show.
ValidateCurrentDialogSettings();
// Create settings object for new dialog,
// based on current state.
NativeTaskDialogSettings settings = new NativeTaskDialogSettings();
ApplyCoreSettings(settings);
ApplySupplementalSettings(settings);
// Show the dialog.
// NOTE: this is a BLOCKING call; the dialog proc callbacks
// will be executed by the same thread as the
// Show() call before the thread of execution
// contines to the end of this method.
nativeDialog = new NativeTaskDialog(settings, this);
nativeDialog.NativeShow();
// Build and return dialog result to public API - leaving it
// null after an exception is thrown is fine in this case
result = ConstructDialogResult(nativeDialog);
footerCheckBoxChecked = nativeDialog.CheckBoxChecked;
}
finally
{
CleanUp();
nativeDialog = null;
}
return(result);
}
// Analyzes the final state of the NativeTaskDialog instance and creates the
// final TaskDialogResult that will be returned from the public API
private static TaskDialogResult ConstructDialogResult(NativeTaskDialog native)
{
Debug.Assert(native.ShowState == DialogShowState.Closed, "dialog result being constructed for unshown dialog.");
TaskDialogResult result = TaskDialogResult.Cancel;
TaskDialogStandardButtons standardButton = MapButtonIdToStandardButton(native.SelectedButtonId);
// If returned ID isn't a standard button, let's fetch
if (standardButton == TaskDialogStandardButtons.None)
{
result = TaskDialogResult.CustomButtonClicked;
}
else
{
result = (TaskDialogResult)standardButton;
}
return(result);
}