internal int WidgetFuncCallback(WidgetMessage inMessage, WidgetID inWidget, IntPtr inParam1, IntPtr inParam2)
{
if (!IsEnabled)
{
return(0);
}
return(HandleMessageCore(inMessage, inWidget, inParam1, inParam2));
}
static int StandardWidgetCallback(WidgetMessage inmessage, WidgetID inwidget, IntPtr inparam1, IntPtr inparam2)
{
try
{
if (TryGetById(inwidget, out var widget) && widget is StandardWidget standardWidget)
{
return(standardWidget.HandleMessage(inmessage, inparam1, inparam2).ToInt());
}
}
finally
{
if (inmessage == WidgetMessage.Destroy)
{
Unregister(inwidget);
}
}
return(0);
}
private Widget(WidgetID id)
{
Id = id;
IsRoot = WidgetsAPI.GetParentWidget(id) == id;
}
/// <summary>
/// Low-level message handling routine.
/// </summary>
/// <remarks>
/// You should generally prefer overriding <see cref="HandleMessage"/> as it provides higher-level abstraction.
/// </remarks>
/// <param name="message">The message.</param>
/// <param name="widgetId">The widget ID.</param>
/// <param name="param1">The first message parameter.</param>
/// <param name="param2">The second message parameter.</param>
/// <returns>1 if the message was handled; 0 otherwise.</returns>
/// <seealso cref="HandleMessage"/>
protected virtual int HandleMessageCore(WidgetMessage message, WidgetID widgetId, IntPtr param1, IntPtr param2)
{
var widget = Widget.GetOrCreate(widgetId);
return(HandleMessage(message, widget, param1, param2).ToInt());
}