private void ShowErrorDialog(IWin32Window parent, string caption, string message, string details)
{
using (TraceSources.IapDesktop.TraceMethod().WithParameters(caption, message, details))
{
var config = new UnsafeNativeMethods.TASKDIALOGCONFIG()
{
cbSize = (uint)Marshal.SizeOf(typeof(UnsafeNativeMethods.TASKDIALOGCONFIG)),
hwndParent = parent.Handle,
dwFlags = 0,
dwCommonButtons = UnsafeNativeMethods.TASKDIALOG_COMMON_BUTTON_FLAGS.TDCBF_OK_BUTTON,
pszWindowTitle = "An error occured",
MainIcon = TaskDialogIcons.TD_ERROR_ICON,
pszMainInstruction = caption,
pszContent = message,
pszExpandedInformation = details.ToString()
};
UnsafeNativeMethods.TaskDialogIndirect(
ref config,
out int buttonPressed,
out int radioButtonPressed,
out bool verificationFlagPressed);
}
}
public int ShowOptionsTaskDialog(
IWin32Window parent,
IntPtr mainIcon,
string windowTitle,
string mainInstruction,
string content,
string details,
IList <string> optionCaptions,
string verificationText,
out bool verificationFlagPressed)
{
// The options to show.
var options = optionCaptions
.Select(caption => Marshal.StringToHGlobalUni(caption))
.ToArray();
// Wrap each option by a TASKDIALOG_BUTTON_RAW structure and
// marshal them one by one into a native memory buffer.
var buttonsBuffer = Marshal.AllocHGlobal(
Marshal.SizeOf <UnsafeNativeMethods.TASKDIALOG_BUTTON_RAW>() * options.Length);
var currentButton = buttonsBuffer;
for (int i = 0; i < options.Length; i++)
{
Marshal.StructureToPtr <UnsafeNativeMethods.TASKDIALOG_BUTTON_RAW>(
new UnsafeNativeMethods.TASKDIALOG_BUTTON_RAW()
{
nButtonID = ButtonIdOffset + i, // Add offset to avoid conflict with IDOK/IDCANCEL.
pszButtonText = options[i]
},
currentButton,
false);
currentButton += Marshal.SizeOf <UnsafeNativeMethods.TASKDIALOG_BUTTON_RAW>();
}
try
{
var config = new UnsafeNativeMethods.TASKDIALOGCONFIG()
{
cbSize = (uint)Marshal.SizeOf(typeof(UnsafeNativeMethods.TASKDIALOGCONFIG)),
hwndParent = parent.Handle,
dwFlags = UnsafeNativeMethods.TASKDIALOG_FLAGS.TDF_USE_COMMAND_LINKS,
dwCommonButtons = UnsafeNativeMethods.TASKDIALOG_COMMON_BUTTON_FLAGS.TDCBF_OK_BUTTON |
UnsafeNativeMethods.TASKDIALOG_COMMON_BUTTON_FLAGS.TDCBF_CANCEL_BUTTON,
pszWindowTitle = windowTitle,
MainIcon = mainIcon,
pszMainInstruction = mainInstruction,
pszContent = content,
pButtons = buttonsBuffer,
cButtons = (uint)options.Length,
pszExpandedInformation = details,
pszVerificationText = verificationText
};
UnsafeNativeMethods.TaskDialogIndirect(
ref config,
out int buttonPressed,
out int radioButtonPressed,
out verificationFlagPressed);
if (buttonPressed == UnsafeNativeMethods.IDOK)
{
// Pick first option.
return(0);
}
else if (buttonPressed >= ButtonIdOffset)
{
// Option selected.
return(buttonPressed - ButtonIdOffset);
}
else
{
throw new OperationCanceledException("Task dialog was cancelled");
}
}
finally
{
foreach (var option in options)
{
Marshal.FreeHGlobal(option);
}
Marshal.FreeHGlobal(buttonsBuffer);
}
}