static int Show(Form owner, string title, TaskDialogCommonIcon icon, string mainInstruction, string content, TaskDialogCommonButtons commonButtons, TaskDialogButton[] buttons)
{
if (buttons.Length > 10)
{
throw new ArgumentOutOfRangeException("buttons", "Maximum number of buttons is 10.");
}
var tdConfig = new TaskDialogConfig();
tdConfig.Size = (uint)Marshal.SizeOf(tdConfig);
Debug.Assert(tdConfig.Size == 160);
tdConfig.Parent = owner.Handle;
tdConfig.Instance = NativeMethods.GetModuleHandle(null);
tdConfig.Flags = TaskDialogFlags.PositionRelativeToWindow | (owner.RightToLeft == RightToLeft.Yes ? TaskDialogFlags.RTLLayout : TaskDialogFlags.None);
tdConfig.CommonButtons = commonButtons;
tdConfig.WindowTitle = title;
tdConfig.MainIcon = new IntPtr((int)icon);
tdConfig.MainInstruction = mainInstruction;
tdConfig.Content = content;
if (buttons.Length > 0)
{
var buttonStructSize = Marshal.SizeOf(typeof(TaskDialogButton));
tdConfig.Buttons = Marshal.AllocHGlobal(buttonStructSize * buttons.Length);
for (var i = 0; i < buttons.Length; i++)
{
Marshal.StructureToPtr(buttons[i], new IntPtr(tdConfig.Buttons.ToInt64() + i * buttonStructSize), false);
}
tdConfig.ButtonCount = (uint)buttons.Length;
}
try {
var button = 0;
var radioButton = 0;
var verificationFlag = false;
var rv = NativeMethods.TaskDialogIndirect(ref tdConfig, out button, out radioButton, out verificationFlag);
if (rv != 0)
{
throw new InvalidOperationException("TaskDialogIndirect failed: " + rv.ToString("X8", CultureInfo.CurrentCulture));
}
return(button);
} finally {
if (buttons.Length > 0)
{
Marshal.FreeHGlobal(tdConfig.Buttons);
}
}
}
public static extern int TaskDialogIndirect(ref TaskDialogConfig pTaskConfig, out int pnButton, out int pnRadioButton, out bool pfVerificationFlagChecked);
