public static IAsyncResult BeginShowMessageBox(
PlayerIndex player,
string title,
string text,
IEnumerable <string> buttons,
int focusButton,
MessageBoxIcon icon,
AsyncCallback callback,
Object state
)
{
#if WINDOWS_PHONE
// Call the Microsoft implementation of BeginShowMessageBox using an alias.
return(MsXna_Guide.BeginShowMessageBox(
(MsXna_PlayerIndex)player,
title, text,
buttons, focusButton,
(MsXna_MessageBoxIcon)icon,
callback, state));
#else
// TODO: GuideAlreadyVisibleException
if (IsVisible)
{
throw new Exception("The function cannot be completed at this time: the Guide UI is already active. Wait until Guide.IsVisible is false before issuing this call.");
}
if (player != PlayerIndex.One)
{
throw new ArgumentOutOfRangeException("player", "Specified argument was out of the range of valid values.");
}
if (title == null)
{
throw new ArgumentNullException("title", "This string cannot be null or empty, and must be less than 256 characters long.");
}
if (text == null)
{
throw new ArgumentNullException("text", "This string cannot be null or empty, and must be less than 256 characters long.");
}
if (buttons == null)
{
throw new ArgumentNullException("buttons", "Value can not be null.");
}
ShowMessageBoxDelegate smb = ShowMessageBox;
return(smb.BeginInvoke(title, text, buttons, focusButton, icon, callback, smb));
#endif
}
private static Task <int?> PlatformShow(string title, string description, List <string> buttons)
{
tcs = new TaskCompletionSource <int?>();
MsXna_Guide.BeginShowMessageBox(MsXna_PlayerIndex.One, title, description, buttons, 0, MsXna_MessageBoxIcon.None,
ar =>
{
var result = MsXna_Guide.EndShowMessageBox(ar);
if (!tcs.Task.IsCompleted)
{
tcs.SetResult(result);
}
},
null);
return(tcs.Task);
}
public static IAsyncResult BeginShowMessageBox(
MGXna_Framework.PlayerIndex player,
string title,
string text,
IEnumerable <string> buttons,
int focusButton,
MessageBoxIcon icon,
AsyncCallback callback,
Object state
)
{
#if WINDOWS_PHONE
// Call the Microsoft implementation of BeginShowMessageBox using an alias.
return(MsXna_Guide.BeginShowMessageBox(
(MsXna_PlayerIndex)player,
title, text,
buttons, focusButton,
(MsXna_MessageBoxIcon)icon,
callback, state));
#elif !WINDOWS_UAP
// TODO: GuideAlreadyVisibleException
if (IsVisible)
{
throw new Exception("The function cannot be completed at this time: the Guide UI is already active. Wait until Guide.IsVisible is false before issuing this call.");
}
if (player != PlayerIndex.One)
{
throw new ArgumentOutOfRangeException("player", "Specified argument was out of the range of valid values.");
}
if (title == null)
{
throw new ArgumentNullException("title", "This string cannot be null or empty, and must be less than 256 characters long.");
}
if (text == null)
{
throw new ArgumentNullException("text", "This string cannot be null or empty, and must be less than 256 characters long.");
}
if (buttons == null)
{
throw new ArgumentNullException("buttons", "Value can not be null.");
}
ShowMessageBoxDelegate smb = ShowMessageBox;
return(smb.BeginInvoke(title, text, buttons, focusButton, icon, callback, smb));
#else
var tcs = new TaskCompletionSource <int?>(state);
var task = Task.Run <int?>(() => ShowMessageBox(title, text, buttons, focusButton, icon));
task.ContinueWith(t =>
{
// Copy the task result into the returned task.
if (t.IsFaulted)
{
tcs.TrySetException(t.Exception.InnerExceptions);
}
else if (t.IsCanceled)
{
tcs.TrySetCanceled();
}
else
{
tcs.TrySetResult(t.Result);
}
// Invoke the user callback if necessary.
if (callback != null)
{
callback(tcs.Task);
}
});
return(tcs.Task);
#endif
}