protected override IntPtr CreateWindow(int x, int y, int width, int height, string title, IntPtr parentHandle)
{
// Set ex style similiar to wpf
var value1 = (ExtendedWindowStyle)Functions.SetWindowLong(
parentHandle, -20, (int)(ExtendedWindowStyle.WindowEdge | ExtendedWindowStyle.ApplicationWindow));
// Set style similiar to wpf, without ClipChildren -> flicker
var value2 = (WindowStyle)Functions.SetWindowLong(
parentHandle, -16, (int)(WindowStyle.ClipSiblings | WindowStyle.ClipChildren | WindowStyle.Caption | WindowStyle.SystemMenu | WindowStyle.ThickFrame | WindowStyle.Group | WindowStyle.TabStop));
var wc = new ExtendedWindowClass();
wc.Size = ExtendedWindowClass.SizeInBytes;
wc.Style = ClassStyle.OwnDC | ClassStyle.HorizontalRedraw | ClassStyle.VerticalRedraw;
wc.Instance = Instance;
wc.WndProc = WindowProcedureDelegate;
wc.ClassName = ClassName;
wc.Icon = IntPtr.Zero;
wc.IconSm = IntPtr.Zero;
//wc.Background = IntPtr.Zero;
wc.Background = Functions.CreateSolidBrush((uint)System.Drawing.ColorTranslator.ToWin32(System.Drawing.Color.Green));
wc.Cursor = Functions.LoadCursor();
ushort atom = Functions.RegisterClassEx(ref wc);
if (atom == 0)
{
throw new Exception(String.Format("Failed to register window class. Error: {0}", Marshal.GetLastWin32Error()));
}
IntPtr window_name = Marshal.StringToHGlobalAuto(title);
IntPtr handle = Functions.CreateWindowEx(
0, ClassName, window_name, WindowStyle.Visible | WindowStyle.Child | WindowStyle.ClipChildren | WindowStyle.ClipSiblings,
x, y, width, height,
parentHandle, IntPtr.Zero, Instance, IntPtr.Zero);
if (handle == IntPtr.Zero)
{
throw new Exception(String.Format("Failed to create window. Error: {0}", Marshal.GetLastWin32Error()));
}
return(handle);
}
public static extern ushort RegisterClassEx(ref ExtendedWindowClass window_class);
