private void Hook()
{
var handle = new WindowInteropHelper(this).EnsureHandle();
_monitor = new Monitor(handle);
_window = new Native.Window(handle);
UpdateNonClientBorder();
var source = HwndSource.FromHwnd(handle);
if (source != null)
{
source.AddHook(WndProc);
}
}
private void GetMinMaxInfo(IntPtr lParam)
{
var info = (Interop.MINMAXINFO)Marshal.PtrToStructure(lParam, typeof(Interop.MINMAXINFO));
var monitor = new Monitor(_handle);
monitor.Invalidate();
Taskbar.Invalidate();
var bounds = monitor.Bounds;
var workArea = monitor.WorkArea;
info.ptMaxPosition.x = Math.Abs(bounds.left) + Taskbar.Position == TaskbarPosition.Left && Taskbar.AutoHide ? 1 : 0;
info.ptMaxPosition.y = Math.Abs(bounds.top) + Taskbar.Position == TaskbarPosition.Top && Taskbar.AutoHide ? 1 : 0;
info.ptMaxSize.x = info.ptMaxTrackSize.x = Math.Abs(workArea.right - workArea.left) - (Taskbar.Position == TaskbarPosition.Right && Taskbar.AutoHide ? 1 : 0);
info.ptMaxSize.y = info.ptMaxTrackSize.y = Math.Abs(workArea.bottom - workArea.top) - (Taskbar.Position == TaskbarPosition.Bottom && Taskbar.AutoHide ? 1 : 0);
var source = PresentationSource.FromVisual(this);
if (source != null && source.CompositionTarget != null)
{
if (DoubleUtil.IsNonNegative(MinWidth))
{
info.ptMinTrackSize.x = (int)Math.Ceiling(MinWidth * source.CompositionTarget.TransformFromDevice.M11);
}
if (DoubleUtil.IsNonNegative(MinHeight))
{
info.ptMinTrackSize.y = (int)Math.Ceiling(MinHeight * source.CompositionTarget.TransformFromDevice.M22);
}
if (DoubleUtil.IsNonNegative(MaxWidth))
{
info.ptMaxSize.x = info.ptMaxTrackSize.x = Math.Min(info.ptMaxSize.x, (int)Math.Ceiling(MaxWidth * source.CompositionTarget.TransformFromDevice.M11));
}
if (DoubleUtil.IsNonNegative(MaxHeight))
{
info.ptMaxSize.y = info.ptMaxTrackSize.y = Math.Min(info.ptMaxSize.y, (int)Math.Ceiling(MaxHeight * source.CompositionTarget.TransformFromDevice.M22));
}
}
Marshal.StructureToPtr(info, lParam, true);
}