/// <summary>
/// Shows the TaskDialog.
/// </summary>
/// <returns>TaskDialogResult.</returns>
public TaskDialogResult Show()
{
result = TaskDialogResult.Cancel;
TaskDialogConfiguration nativeConfig = new TaskDialogConfiguration();
nativeConfig.size = (uint)Marshal.SizeOf(nativeConfig);
nativeConfig.parentHandle = hWndOwner;
nativeConfig.commonButtons = TaskDialogResult.Cancel;
nativeConfig.content = text;
nativeConfig.windowTitle = caption;
nativeConfig.mainInstruction = instructionText;
nativeConfig.taskDialogFlags = TaskDialogOptions.AllowCancel | TaskDialogOptions.ShowProgressBar | TaskDialogOptions.PositionRelativeToWindow | TaskDialogOptions.EnableHyperlinks;
nativeConfig.callback = new TaskDialogCallback(DialogProc);
// 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
// continues to the end of this method.
showState = TaskDialogShowState.Showing;
using (new EnableThemingInScope(true)) { // Here is the way we use "vanilla" P/Invoke to call TaskDialogIndirect().
TaskDialogIndirect(
nativeConfig,
out selectedButtonId,
IntPtr.Zero,
IntPtr.Zero);
}
showState = TaskDialogShowState.Closed;
// Build and return dialog result to public API - leaving it
// null after an exception is thrown is fine in this case
if ((TaskDialogCommonButtonReturnId)selectedButtonId == TaskDialogCommonButtonReturnId.Ok)
{
result = TaskDialogResult.Ok;
}
// Reset progress bar.
ProgressBarState = TaskDialogProgressBarState.Normal;
ProgressBarValue = progressBarMinimum;
// Free up strings.
if (updatedStrings != null)
{
for (int i = 0; i < updatedStrings.Length; i++)
{
if (updatedStrings[i] != IntPtr.Zero)
{
Marshal.FreeHGlobal(updatedStrings[i]);
updatedStrings[i] = IntPtr.Zero;
}
}
}
return(result);
}
/// <summary>
/// Close TaskDialog with a given TaskDialogResult
/// </summary>
/// <param name="result">TaskDialogResult to return from the Show() method</param>
/// <exception cref="InvalidOperationException">if TaskDialog is not showing.</exception>
public void Close(TaskDialogResult result)
{
if (!NativeDialogShowing)
{
throw new InvalidOperationException();
}
showState = TaskDialogShowState.Closing;
int id = (int)TaskDialogCommonButtonReturnId.Cancel;
if (result == TaskDialogResult.Ok)
{
id = (int)TaskDialogCommonButtonReturnId.Ok;
}
SendMessageHelper(TaskDialogMessage.ClickButton, id, 0);
}
/// <summary>
/// Displays a TaskDialog-based error dialog with the error icon.
/// </summary>
/// <param name="title">The dialog's title.</param>
/// <param name="text">The dialog's body.</param>
/// <returns>TaskDialogResult.</returns>
public TaskDialogResult ShowError(string title, string text)
{
result = TaskDialogResult.No;
TaskDialogConfiguration nativeConfig = new TaskDialogConfiguration();
Icon = TaskDialogStandardIcon.Error;
nativeConfig.size = (uint)Marshal.SizeOf(nativeConfig);
nativeConfig.parentHandle = hWndOwner;
nativeConfig.commonButtons = TaskDialogResult.Ok;
nativeConfig.content = text;
nativeConfig.windowTitle = title;
nativeConfig.mainInstruction = instructionText;
nativeConfig.taskDialogFlags = TaskDialogOptions.AllowCancel | TaskDialogOptions.PositionRelativeToWindow;
nativeConfig.callback = new TaskDialogCallback(DialogProc);
showState = TaskDialogShowState.Showing;
using (new EnableThemingInScope(true)) { // Here is the way we use "vanilla" P/Invoke to call TaskDialogIndirect().
TaskDialogIndirect(
nativeConfig,
out selectedButtonId,
IntPtr.Zero,
IntPtr.Zero);
}
showState = TaskDialogShowState.Closed;
if ((TaskDialogCommonButtonReturnId)selectedButtonId == TaskDialogCommonButtonReturnId.Ok)
{
result = TaskDialogResult.Ok;
}
// Free up strings.
if (updatedStrings != null)
{
for (int i = 0; i < updatedStrings.Length; i++)
{
if (updatedStrings[i] != IntPtr.Zero)
{
Marshal.FreeHGlobal(updatedStrings[i]);
updatedStrings[i] = IntPtr.Zero;
}
}
}
return(result);
}
/// <summary>
/// Displays a TaskDialog-based error dialog with the error icon.
/// </summary>
/// <param name="title">The dialog's title.</param>
/// <param name="text">The dialog's body.</param>
/// <returns>TaskDialogResult.</returns>
public TaskDialogResult ShowError( string title, string text )
{
result = TaskDialogResult.No;
TaskDialogConfiguration nativeConfig = new TaskDialogConfiguration();
Icon = TaskDialogStandardIcon.Error;
nativeConfig.size = (uint) Marshal.SizeOf( nativeConfig );
nativeConfig.parentHandle = hWndOwner;
nativeConfig.commonButtons = TaskDialogResult.Ok;
nativeConfig.content = text;
nativeConfig.windowTitle = title;
nativeConfig.mainInstruction = instructionText;
nativeConfig.taskDialogFlags = TaskDialogOptions.AllowCancel | TaskDialogOptions.PositionRelativeToWindow;
nativeConfig.callback = new TaskDialogCallback( DialogProc );
showState = TaskDialogShowState.Showing;
using ( new EnableThemingInScope( true ) ) { // Here is the way we use "vanilla" P/Invoke to call TaskDialogIndirect().
TaskDialogIndirect(
nativeConfig,
out selectedButtonId,
IntPtr.Zero,
IntPtr.Zero );
}
showState = TaskDialogShowState.Closed;
if ( (TaskDialogCommonButtonReturnId) selectedButtonId == TaskDialogCommonButtonReturnId.Ok ) {
result = TaskDialogResult.Ok;
}
// Free up strings.
if ( updatedStrings != null ) {
for ( int i = 0; i < updatedStrings.Length; i++ ) {
if ( updatedStrings[i] != IntPtr.Zero ) {
Marshal.FreeHGlobal( updatedStrings[i] );
updatedStrings[i] = IntPtr.Zero;
}
}
}
return result;
}
/// <summary>
/// Shows the TaskDialog.
/// </summary>
/// <returns>TaskDialogResult.</returns>
public TaskDialogResult Show()
{
result = TaskDialogResult.Cancel;
TaskDialogConfiguration nativeConfig = new TaskDialogConfiguration();
nativeConfig.size = (uint) Marshal.SizeOf( nativeConfig );
nativeConfig.parentHandle = hWndOwner;
nativeConfig.commonButtons = TaskDialogResult.Cancel;
nativeConfig.content = text;
nativeConfig.windowTitle = caption;
nativeConfig.mainInstruction = instructionText;
nativeConfig.taskDialogFlags = TaskDialogOptions.AllowCancel | TaskDialogOptions.ShowProgressBar | TaskDialogOptions.PositionRelativeToWindow | TaskDialogOptions.EnableHyperlinks;
nativeConfig.callback = new TaskDialogCallback( DialogProc );
// 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
// continues to the end of this method.
showState = TaskDialogShowState.Showing;
using ( new EnableThemingInScope( true ) ) { // Here is the way we use "vanilla" P/Invoke to call TaskDialogIndirect().
TaskDialogIndirect(
nativeConfig,
out selectedButtonId,
IntPtr.Zero,
IntPtr.Zero );
}
showState = TaskDialogShowState.Closed;
// Build and return dialog result to public API - leaving it
// null after an exception is thrown is fine in this case
if ( (TaskDialogCommonButtonReturnId) selectedButtonId == TaskDialogCommonButtonReturnId.Ok ) {
result = TaskDialogResult.Ok;
}
// Reset progress bar.
ProgressBarState = TaskDialogProgressBarState.Normal;
ProgressBarValue = progressBarMinimum;
// Free up strings.
if ( updatedStrings != null ) {
for ( int i = 0; i < updatedStrings.Length; i++ ) {
if ( updatedStrings[i] != IntPtr.Zero ) {
Marshal.FreeHGlobal( updatedStrings[i] );
updatedStrings[i] = IntPtr.Zero;
}
}
}
return result;
}
/// <summary>
/// Close TaskDialog with a given TaskDialogResult
/// </summary>
/// <param name="result">TaskDialogResult to return from the Show() method</param>
/// <exception cref="InvalidOperationException">if TaskDialog is not showing.</exception>
public void Close( TaskDialogResult result )
{
if ( !NativeDialogShowing ) throw new InvalidOperationException();
showState = TaskDialogShowState.Closing;
int id = (int) TaskDialogCommonButtonReturnId.Cancel;
if ( result == TaskDialogResult.Ok ) id = (int) TaskDialogCommonButtonReturnId.Ok;
SendMessageHelper( TaskDialogMessage.ClickButton, id, 0 );
}
