private void WmDpiChanged(ref Message m)
{
var oldDeviceDpi = _deviceDpi;
var newDeviceDpi = Win32.SignedHIWORD(m.WParam);
var suggestedRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
ScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
_deviceDpi = newDeviceDpi;
var maxSizeState = MaximumSize;
var minSizeState = MinimumSize;
MinimumSize = Size.Empty;
MaximumSize = Size.Empty;
User32.SetWindowPos(Handle, IntPtr.Zero, suggestedRect.left, suggestedRect.top, suggestedRect.Width, suggestedRect.Height, SetWindowPosFlags.SWP_NOZORDER | SetWindowPosFlags.SWP_NOACTIVATE);
var scaleFactor = (float)newDeviceDpi / oldDeviceDpi;
MinimumSize = DpiHelper.CalcScaledSize(minSizeState, new SizeF(scaleFactor, scaleFactor));
MaximumSize = DpiHelper.CalcScaledSize(maxSizeState, new SizeF(scaleFactor, scaleFactor));
OnWmDpiChanged(oldDeviceDpi, newDeviceDpi, suggestedRect.ToRectangle());
}
protected override void OnCreateControl()
{
base.OnCreateControl();
if (!DesignMode)
{
if (ScaleFactor != 1.0f)
{
Scale(new SizeF(ScaleFactor, ScaleFactor));
}
var currentScreenScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
var primaryScreenScaleFactor = DpiHelper.GetScreenDpi(Screen.PrimaryScreen) / 96f;
if (primaryScreenScaleFactor != 1.0f)
{
Font = new Font(Font.FontFamily, (float)Math.Round(Font.Size / primaryScreenScaleFactor), Font.Style);
}
Font = new Font(Font.FontFamily, (float)Math.Round(Font.Size * currentScreenScaleFactor), Font.Style);
CorrectFormPostion();
}
_isLoaded = true;
}
protected override void OnHandleCreated(EventArgs e)
{
ScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
base.OnHandleCreated(e);
CheckResetDPIAutoScale(true);
CorrectFormPostion();
}
protected override bool GetScreenPoint(CefBrowser browser, int viewX, int viewY, ref int screenX, ref int screenY)
{
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(_owner.HostWindowHandle);
var pt = new POINT((int)(viewX * scaleFactor), (int)(viewY * scaleFactor));
User32.ClientToScreen(_owner.HostWindowHandle, ref pt);
screenX = pt.x;
screenY = pt.y;
return(true);
}
private void WmDpiChanged(ref Message m)
{
var oldDeviceDpi = _deviceDpi;
var newDeviceDpi = Win32.SignedHIWORD(m.WParam);
var suggestedRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
ScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
_deviceDpi = newDeviceDpi;
User32.SetWindowPos(Handle, IntPtr.Zero, suggestedRect.left, suggestedRect.top, suggestedRect.Width, suggestedRect.Height, SetWindowPosFlags.SWP_NOZORDER | SetWindowPosFlags.SWP_NOACTIVATE);
OnWmDpiChanged(oldDeviceDpi, newDeviceDpi, suggestedRect.ToRectangle());
}
protected override bool GetScreenInfo(CefBrowser browser, CefScreenInfo screenInfo)
{
var handle = _owner.HostWindowHandle;
var screen = Screen.FromHandle(handle);
screenInfo.DeviceScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(handle);
GetViewRect(browser, out var rectView);
screenInfo.Rectangle = rectView;
screenInfo.AvailableRectangle = rectView;//new CefRectangle(screen.WorkingArea.X, screen.WorkingArea.Y, screen.WorkingArea.Width, screen.WorkingArea.Height);
return(true);
}
protected override void GetViewRect(CefBrowser browser, out CefRectangle rect)
{
var handle = _owner.HostWindowHandle;
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(handle);
var clientRect = new RECT();
rect = new CefRectangle();
User32.GetClientRect(handle, ref clientRect);
rect.X = rect.Y = 0;
if (User32.IsIconic(handle) || clientRect.Width == 0 || clientRect.Height == 0)
{
var placement = new WINDOWPLACEMENT();
User32.GetWindowPlacement(_owner.HostWindowHandle, ref placement);
clientRect = placement.rcNormalPosition;
rect.Width = (int)(clientRect.Width / scaleFactor);
rect.Height = (int)(clientRect.Height / scaleFactor);
}
else
{
rect.Width = (int)(clientRect.Width / scaleFactor);
rect.Height = (int)(clientRect.Height / scaleFactor);
}
if (clientRect.Width != _view_width || clientRect.Height != _view_height)
{
_view_width = clientRect.Width;
_view_height = clientRect.Height;
DiscardDeviceResources();
}
}
private void CorrectFormPostion()
{
if (StartPosition == FormStartPosition.CenterParent && Owner != null)
{
Location = new Point(Owner.Location.X + Owner.Width / 2 - Width / 2,
Owner.Location.Y + Owner.Height / 2 - Height / 2);
}
else if (StartPosition == FormStartPosition.CenterScreen || (StartPosition == FormStartPosition.CenterParent && Owner == null))
{
var currentScreen = Screen.FromPoint(MousePosition);
var initScreen = Screen.FromHandle(Handle);
var w = RealFormRectangle.Width;
var h = RealFormRectangle.Height;
var screenLeft = 0;
var screenTop = 0;
if (DpiHelper.IsPerMonitorV2Awareness)
{
var factor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
//var screenDpi = DpiHelper.GetScreenDpiFromPoint(MousePosition);
//var screenScaleFactor = (screenDpi / 96f) / ScaleFactor;
var bounds = GetScaledBounds(RealFormRectangle, new SizeF(factor, factor), BoundsSpecified.Size);
w = bounds.Width;
h = bounds.Height;
}
if (currentScreen.DeviceName != initScreen.DeviceName)
{
}
screenLeft += currentScreen.WorkingArea.Left;
screenTop += currentScreen.WorkingArea.Top;
User32.SetWindowPos(Handle, IntPtr.Zero, screenLeft + (currentScreen.WorkingArea.Width - w) / 2, screenTop + (currentScreen.WorkingArea.Height - h) / 2, RealFormRectangle.Width, RealFormRectangle.Height, SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOZORDER);
}
}
protected override void OnHandleCreated(EventArgs e)
{
try
{
UxTheme.SetWindowTheme(Handle, string.Empty, string.Empty);
User32.DisableProcessWindowsGhosting();
ScaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(Handle);
}
catch { }
base.OnHandleCreated(e);
CheckResetDPIAutoScale(true);
ResumeLayout();
}
protected override void OnDraggableRegionsChanged(CefBrowser browser, CefFrame frame, CefDraggableRegion[] regions)
{
if (_owner.WebView.DraggableRegion != null)
{
_owner.WebView.DraggableRegion.Dispose();
_owner.WebView.DraggableRegion = null;
}
if (regions.Length > 0)
{
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(_owner.WebView.BrowserHost.GetWindowHandle());
//DpiHelper.GetScaleFactorForCurrentWindow(_owner.WebView.BrowserHost.GetWindowHandle());
//var targetRegion = _core.DraggableRegion = new Region();
foreach (var region in regions)
{
var rect = new Rectangle((int)(region.Bounds.X * scaleFactor), (int)(region.Bounds.Y * scaleFactor), (int)(region.Bounds.Width * scaleFactor), (int)(region.Bounds.Height * scaleFactor));
if (_owner.WebView.DraggableRegion == null)
{
_owner.WebView.DraggableRegion = new Region(rect);
}
else
{
if (region.Draggable)
{
_owner.WebView.DraggableRegion.Union(rect);
}
else
{
_owner.WebView.DraggableRegion.Exclude(rect);
}
}
}
}
}
protected override void OnPaint(CefBrowser browser, CefPaintElementType type, CefRectangle[] dirtyRects, IntPtr buffer, int width, int height)
{
if (width <= 0 || height <= 0)
{
return;
}
var handle = _owner.HostWindowHandle;
CreateDeviceResource();
_renderTarget.BeginDraw();
if (type == CefPaintElementType.View)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (!_isPopupShown)
{
_renderTarget.Clear(Color.Transparent);
}
_renderTarget.DrawBitmap(bmp);
bmp.Dispose();
}
else if (type == CefPaintElementType.Popup)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (_cachedPopupImage != null)
{
_cachedPopupImage.Dispose();
_cachedPopupImage = null;
GC.Collect();
}
_cachedPopupImage = _renderTarget.CreateSharedBitmap(bmp, new BitmapProperties
{
PixelFormat = new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)
});
bmp.Dispose();
}
if (_cachedPopupImage != null && _isPopupShown && _popupRect.HasValue)
{
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(_owner.HostWindowHandle);
var x = _popupRect.Value.X * scaleFactor;
var y = _popupRect.Value.Y * scaleFactor;
var popupWidth = _popupRect.Value.Width * scaleFactor;
var popupHeight = _popupRect.Value.Height * scaleFactor;
var right = x + popupWidth;
var bottom = y + popupHeight;
_renderTarget.DrawBitmap(_cachedPopupImage, new Vortice.RawRectF(x, y, right, bottom), 1f, BitmapInterpolationMode.Linear, new Vortice.RawRectF(0, 0, popupWidth, popupHeight));
}
if (_renderTarget.EndDraw().Failure)
{
DiscardDeviceResources();
}
unsafe
{
var rect = new RECT();
User32.GetWindowRect(handle, ref rect);
var newLocation = new POINT(rect.left, rect.top);
var newSize = new SIZE(rect.Width, rect.Height);
var zeroPoint = new POINT(0, 0);
if (rect.Width == 0 || rect.Height == 0)
{
return;
}
var blend = new BLENDFUNCTION
{
BlendOp = AcSrcOver,
BlendFlags = 0,
SourceConstantAlpha = 255,
AlphaFormat = AcSrcAlpha
};
var ulwi = new UPDATELAYEREDWINDOWINFO
{
cbSize = Marshal.SizeOf(typeof(UPDATELAYEREDWINDOWINFO)),
hdcDst = _screenDC,
pptDst = &newLocation,
psize = &newSize,
hdcSrc = _memDC,
pptSrc = &zeroPoint,
//crKey = new COLORREF(0),
pblend = &blend,
dwFlags = BlendFlags.ULW_ALPHA,
prcDirty = null
};
User32.UpdateLayeredWindowIndirect(_owner.HostWindowHandle, ref ulwi);
}
GC.Collect();
}
protected override void OnPaint(CefBrowser browser, CefPaintElementType type, CefRectangle[] dirtyRects, IntPtr buffer, int width, int height)
{
if (width <= 0 || height <= 0)
{
return;
}
CreateDeviceResource();
_renderTarget.BeginDraw();
if (type == CefPaintElementType.View)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (!_isPopupShown)
{
_renderTarget.Clear(Color.Transparent);
}
_renderTarget.DrawBitmap(bmp);
bmp.Dispose();
}
else if (type == CefPaintElementType.Popup)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (_cachedPopupImage != null)
{
_cachedPopupImage.Dispose();
_cachedPopupImage = null;
GC.Collect();
}
_cachedPopupImage = _renderTarget.CreateSharedBitmap(bmp, new BitmapProperties
{
PixelFormat = new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)
});
bmp.Dispose();
}
//var layer = _renderTarget.CreateLayer();
//var layerParameter = new LayerParameters
//{
// ContentBounds = new Vortice.RawRectF(0, 0, width, height),
// Opacity = 1
//};
//_renderTarget.PushLayer(ref layerParameter, layer);
if (_cachedPopupImage != null && _isPopupShown && _popupRect.HasValue)
{
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(_owner.HostWindowHandle);
var x = _popupRect.Value.X * scaleFactor;
var y = _popupRect.Value.Y * scaleFactor;
var popupWidth = _popupRect.Value.Width * scaleFactor;
var popupHeight = _popupRect.Value.Height * scaleFactor;
var right = x + popupWidth;
var bottom = y + popupHeight;
_renderTarget.DrawBitmap(_cachedPopupImage, new Vortice.RawRectF(x, y, right, bottom), 1f, BitmapInterpolationMode.Linear, new Vortice.RawRectF(0, 0, popupWidth, popupHeight));
}
//_renderTarget.PopLayer();
//layer.Dispose();
if (_renderTarget.EndDraw().Failure)
{
DiscardDeviceResources();
}
}
