private IntPtr _HandleNCCalcSize(WM uMsg, IntPtr wParam, IntPtr lParam, out bool handled)
{
if (_chromeInfo.SacrificialEdge != SacrificialEdge.None)
{
var windowResizeBorderThicknessDevice = DpiHelper.LogicalThicknessToDevice(SystemParameters2.Current.WindowResizeBorderThickness);
var rcClientArea = (RECT)Marshal.PtrToStructure(lParam, typeof(RECT));
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Top))
{
rcClientArea.Top += (int)windowResizeBorderThicknessDevice.Top;
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Left))
{
rcClientArea.Left += (int)windowResizeBorderThicknessDevice.Left;
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Bottom))
{
rcClientArea.Bottom -= (int)windowResizeBorderThicknessDevice.Bottom;
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Right))
{
rcClientArea.Right -= (int)windowResizeBorderThicknessDevice.Right;
}
Marshal.StructureToPtr(rcClientArea, lParam, false);
}
handled = true;
return(new IntPtr((int)WVR.REDRAW));
}
private IntPtr _HandleNCCalcSize(WM uMsg, IntPtr wParam, IntPtr lParam, out bool handled)
{
if (this._chromeInfo.NonClientFrameEdges != NonClientFrameEdges.None)
{
DpiScale dpi = this._window.GetDpi();
Thickness thickness = DpiHelper.LogicalThicknessToDevice(SystemParameters.WindowResizeBorderThickness, dpi.DpiScaleX, dpi.DpiScaleY);
RECT rect = (RECT)Marshal.PtrToStructure(lParam, typeof(RECT));
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 2))
{
rect.Top += (int)thickness.Top;
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 1))
{
rect.Left += (int)thickness.Left;
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 8))
{
rect.Bottom -= (int)thickness.Bottom;
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 4))
{
rect.Right -= (int)thickness.Right;
}
Marshal.StructureToPtr(rect, lParam, false);
}
handled = true;
IntPtr zero = IntPtr.Zero;
if (wParam.ToInt32() != 0)
{
zero = new IntPtr(768);
}
return(zero);
}
private void _ExtendGlassFrame()
{
Assert.IsNotNull(_window);
if (!Utility.IsOSVistaOrNewer)
{
return;
}
if (IntPtr.Zero == _hwnd)
{
return;
}
if (!NativeMethods.DwmIsCompositionEnabled())
{
_hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;
}
else
{
_hwndSource.CompositionTarget.BackgroundColor = Colors.Transparent;
var deviceGlassThickness = DpiHelper.LogicalThicknessToDevice(_chromeInfo.GlassFrameThickness);
if (_chromeInfo.SacrificialEdge != SacrificialEdge.None)
{
var windowResizeBorderThicknessDevice = DpiHelper.LogicalThicknessToDevice(SystemParameters2.Current.WindowResizeBorderThickness);
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Top))
{
deviceGlassThickness.Top -= windowResizeBorderThicknessDevice.Top;
deviceGlassThickness.Top = Math.Max(0, deviceGlassThickness.Top);
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Left))
{
deviceGlassThickness.Left -= windowResizeBorderThicknessDevice.Left;
deviceGlassThickness.Left = Math.Max(0, deviceGlassThickness.Left);
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Bottom))
{
deviceGlassThickness.Bottom -= windowResizeBorderThicknessDevice.Bottom;
deviceGlassThickness.Bottom = Math.Max(0, deviceGlassThickness.Bottom);
}
if (Utility.IsFlagSet((int)_chromeInfo.SacrificialEdge, (int)SacrificialEdge.Right))
{
deviceGlassThickness.Right -= windowResizeBorderThicknessDevice.Right;
deviceGlassThickness.Right = Math.Max(0, deviceGlassThickness.Right);
}
}
var dwmMargin = new MARGINS
{
cxLeftWidth = (int)Math.Ceiling(deviceGlassThickness.Left),
cxRightWidth = (int)Math.Ceiling(deviceGlassThickness.Right),
cyTopHeight = (int)Math.Ceiling(deviceGlassThickness.Top),
cyBottomHeight = (int)Math.Ceiling(deviceGlassThickness.Bottom),
};
NativeMethods.DwmExtendFrameIntoClientArea(_hwnd, ref dwmMargin);
}
}
private void _ExtendGlassFrame()
{
if (!Utility.IsOSVistaOrNewer)
{
return;
}
if (IntPtr.Zero == this._hwnd)
{
return;
}
if (!NativeMethods.DwmIsCompositionEnabled())
{
this._hwndSource.CompositionTarget.BackgroundColor = SystemColors.WindowColor;
return;
}
DpiScale dpi = this._window.GetDpi();
this._hwndSource.CompositionTarget.BackgroundColor = Colors.Transparent;
Thickness thickness = DpiHelper.LogicalThicknessToDevice(this._chromeInfo.GlassFrameThickness, dpi.DpiScaleX, dpi.DpiScaleY);
if (this._chromeInfo.NonClientFrameEdges != NonClientFrameEdges.None)
{
Thickness thickness2 = DpiHelper.LogicalThicknessToDevice(SystemParameters.WindowResizeBorderThickness, dpi.DpiScaleX, dpi.DpiScaleY);
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 2))
{
thickness.Top -= thickness2.Top;
thickness.Top = Math.Max(0.0, thickness.Top);
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 1))
{
thickness.Left -= thickness2.Left;
thickness.Left = Math.Max(0.0, thickness.Left);
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 8))
{
thickness.Bottom -= thickness2.Bottom;
thickness.Bottom = Math.Max(0.0, thickness.Bottom);
}
if (Utility.IsFlagSet((int)this._chromeInfo.NonClientFrameEdges, 4))
{
thickness.Right -= thickness2.Right;
thickness.Right = Math.Max(0.0, thickness.Right);
}
}
MARGINS margins = new MARGINS
{
cxLeftWidth = (int)Math.Ceiling(thickness.Left),
cxRightWidth = (int)Math.Ceiling(thickness.Right),
cyTopHeight = (int)Math.Ceiling(thickness.Top),
cyBottomHeight = (int)Math.Ceiling(thickness.Bottom)
};
NativeMethods.DwmExtendFrameIntoClientArea(this._hwnd, ref margins);
}