public void Show(Int32Rect rpRect)
{
var rMainWindowHandle = new WindowInteropHelper(App.Current.MainWindow).Handle;
if (r_HwndSource == null)
{
var rParam = new HwndSourceParameters(nameof(ScreenshotToolOverlayWindow))
{
Width = 0,
Height = 0,
PositionX = 0,
PositionY = 0,
WindowStyle = 0,
UsesPerPixelOpacity = true,
HwndSourceHook = WndProc,
ParentWindow = rMainWindowHandle,
};
r_HwndSource = new HwndSource(rParam) { SizeToContent = SizeToContent.Manual, RootVisual = this };
}
var rBrowserWindowHandle = ServiceManager.GetService<IBrowserService>().Handle;
NativeStructs.RECT rBrowserWindowRect;
NativeMethods.User32.GetWindowRect(rBrowserWindowHandle, out rBrowserWindowRect);
var rHorizontalRatio = rBrowserWindowRect.Width / GameConstants.GameWidth;
var rVerticalRatio = rBrowserWindowRect.Height / GameConstants.GameHeight;
rpRect.X = (int)(rpRect.X * rHorizontalRatio);
rpRect.Y = (int)(rpRect.Y * rVerticalRatio);
rpRect.Width = (int)(rpRect.Width * rHorizontalRatio);
rpRect.Height = (int)(rpRect.Height * rVerticalRatio);
NativeMethods.User32.SetWindowPos(r_HwndSource.Handle, IntPtr.Zero, rBrowserWindowRect.Left + rpRect.X, rBrowserWindowRect.Top + rpRect.Y, rpRect.Width, rpRect.Height, NativeEnums.SetWindowPosition.SWP_NOZORDER | NativeEnums.SetWindowPosition.SWP_NOACTIVATE | NativeEnums.SetWindowPosition.SWP_SHOWWINDOW);
}
private void App_OnStartup(object sender, StartupEventArgs e)
{
var mode = e.Args.Any() ? e.Args[0] : "/s";
// Preview mode--display in little window in Screen Saver dialog
// (Not invoked with Preview button, which runs Screen Saver in
// normal /s mode).
if (mode.ToLower().StartsWith("/p"))
{
m_winSaver = new MainWindow();
Int32 previewHandle = Convert.ToInt32(e.Args[1]);
//WindowInteropHelper interopWin1 = new WindowInteropHelper(win);
//interopWin1.Owner = new IntPtr(previewHandle);
var pPreviewHnd = new IntPtr(previewHandle);
var lpRect = new RECT();
Win32API.GetClientRect(pPreviewHnd, ref lpRect);
var sourceParams = new HwndSourceParameters("sourceParams")
{
PositionX = 0,
PositionY = 0,
Height = lpRect.Bottom - lpRect.Top,
Width = lpRect.Right - lpRect.Left,
ParentWindow = pPreviewHnd,
WindowStyle = (int)(WindowStyles.WS_VISIBLE | WindowStyles.WS_CHILD | WindowStyles.WS_CLIPCHILDREN)
};
m_winWpfContent = new HwndSource(sourceParams);
m_winWpfContent.Disposed += winWPFContent_Disposed;
m_winWpfContent.RootVisual = m_winSaver.Grid;
// ReSharper disable once CSharpWarnings::CS4014
m_winSaver.StartAnimation();
}
// Normal screensaver mode. Either screen saver kicked in normally,
// or was launched from Preview button
else if (mode.ToLower().StartsWith("/s"))
{
var win = new MainWindow { WindowState = WindowState.Maximized };
win.Show();
}
// Config mode, launched from Settings button in screen saver dialog
else if (mode.ToLower().StartsWith("/c"))
{
var win = new SettingsWindow();
win.Show();
}
// If not running in one of the sanctioned modes, shut down the app
// immediately (because we don't have a GUI).
else
{
Current.Shutdown();
}
}
public MessageWindow()
{
HwndSourceParameters sourceParams = new HwndSourceParameters()
{
ParentWindow = HWND_MESSAGE
};
Source = new HwndSource(sourceParams);
Handle = Source.Handle;
}
public override void Show()
{
var parameters = new HwndSourceParameters(this.Name)
{
Width = 1,
Height = 1,
WindowStyle = 0x800000,
};
this.Show(parameters);
}
public override void Show()
{
var parameters = new HwndSourceParameters(ProductInfo.Title)
{
Width = 1,
Height = 1,
WindowStyle = (int)WS.BORDER,
};
this.Show(parameters);
}
private void Application_Startup(object sender, StartupEventArgs e)
{
var controller = new MainController();
// Preview mode--display in little window in Screen Saver dialog
// (Not invoked with Preview button, which runs Screen Saver in
// normal /s mode).
var argSwitch = e.Args[0].ToLower();
if (argSwitch.StartsWith("/p"))
{
this.winSaver = new MainWindow(controller);
var previewHandle = Convert.ToInt32(e.Args[1]);
var previewHnd = new IntPtr(previewHandle);
var rect = new RECT();
Win32API.GetClientRect(previewHnd, ref rect);
var sourceParams = new HwndSourceParameters("sourceParams")
{
PositionX = 0,
PositionY = 0,
Height = rect.Bottom - rect.Top,
Width = rect.Right - rect.Left,
ParentWindow = previewHnd,
WindowStyle =
(int)(WindowStyles.WS_VISIBLE | WindowStyles.WS_CHILD | WindowStyles.WS_CLIPCHILDREN)
};
this.winWpfContent = new HwndSource(sourceParams);
this.winWpfContent.Disposed += this.winWPFContent_Disposed;
this.winWpfContent.RootVisual = this.winSaver.Content as Visual;
}
else if (argSwitch.StartsWith("/s"))
{
// Normal screensaver mode. Either screen saver kicked in normally,
// or was launched from Preview button
var win = new MainWindow(controller) { WindowState = WindowState.Maximized };
win.Show();
}
else if (argSwitch.StartsWith("/c"))
{
controller.ShowSettings.Execute(null);
}
else
{
// If not running in one of the sanctioned modes, shut down the app
// immediately (because we don't have a GUI).
Current.Shutdown();
}
}
internal static void CreateHostHwnd(IntPtr parentHwnd)
{
// Set up the parameters for the host hwnd.
HwndSourceParameters parameters = new HwndSourceParameters("Visual Hit Test", _width, _height);
parameters.WindowStyle = WS_VISIBLE | WS_CHILD;
parameters.SetPosition(0, 24);
parameters.ParentWindow = parentHwnd;
parameters.HwndSourceHook = new HwndSourceHook(ApplicationMessageFilter);
// Create the host hwnd for the visuals.
myHwndSource = new HwndSource(parameters);
// Set the hwnd background color to the form's background color.
myHwndSource.CompositionTarget.BackgroundColor = System.Windows.Media.Brushes.OldLace.Color;
}
protected override HandleRef BuildWindowCore(HandleRef hwndParent)
{
var param = new HwndSourceParameters("GeminiClippingHwndHost", (int) Width, (int) Height)
{
ParentWindow = hwndParent.Handle,
WindowStyle = NativeMethods.WS_VISIBLE | NativeMethods.WS_CHILD,
};
_source = new HwndSource(param)
{
RootVisual = Content
};
return new HandleRef(null, _source.Handle);
}
internal static void CreateHostHwnd(IntPtr parentHwnd)
{
// Set up the parameters for the host hwnd.
var parameters = new HwndSourceParameters("Visual Hit Test", Width, Height)
{
WindowStyle = WsVisible | WsChild
};
parameters.SetPosition(0, 24);
parameters.ParentWindow = parentHwnd;
parameters.HwndSourceHook = ApplicationMessageFilter;
// Create the host hwnd for the visuals.
MyHwndSource = new HwndSource(parameters);
// Set the hwnd background color to the form's background color.
MyHwndSource.CompositionTarget.BackgroundColor = Brushes.OldLace.Color;
}
public BrowserWrapper(string rpUri)
{
r_BrowserProviders = new List<IBrowserProvider>();
var rBrowserPath = Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "Browsers");
foreach (var rBrowser in Directory.EnumerateFiles(rBrowserPath, "*.dll"))
{
FileSystem.Unblock(rBrowser);
var rAssembly = Assembly.LoadFile(rBrowser);
var rTypes = rAssembly.GetTypes().Where(r => r.GetInterface(typeof(IBrowserProvider).FullName) != null);
foreach (var rType in rTypes)
{
r_BrowserProviders.Add((IBrowserProvider)rAssembly.CreateInstance(rType.FullName));
}
}
BridgeReady = new ManualResetEventSlim(false);
InitializeComponent();
r_Uri = rpUri;
r_Zoom = 1.0;
Bridge = new Bridge<IBrowserWrapper, IBrowserHost>(this, r_Uri + "Browser", "Browser");
Bridge.Connect(r_Uri + "BrowserHost");
BridgeReady.Set();
r_BrowserProvider = r_BrowserProviders.First();
Container.Content = Browser = r_BrowserProvider.GetBrowser();
var rParameters = new HwndSourceParameters(string.Format("Dentan.Browser({0})", r_BrowserProvider.BrowserName)) { WindowStyle = 0 };
r_HwndSource = new HwndSource(rParameters) { SizeToContent = SizeToContent.Manual };
r_HwndSource.CompositionTarget.BackgroundColor = Color.FromRgb(0x59, 0x59, 0x59);
NativeMethods.User32.SetWindowLongPtr(r_HwndSource.Handle, NativeConstants.GetWindowLong.GWL_STYLE,
(IntPtr)(NativeEnums.WindowStyle.WS_CHILD | NativeEnums.WindowStyle.WS_CLIPCHILDREN));
NativeMethods.User32.SetWindowPos(r_HwndSource.Handle, IntPtr.Zero, 0, 0, 0, 0,
NativeEnums.SetWindowPosition.SWP_FRAMECHANGED | NativeEnums.SetWindowPosition.SWP_NOMOVE | NativeEnums.SetWindowPosition.SWP_NOSIZE | NativeEnums.SetWindowPosition.SWP_NOZORDER);
r_HwndSource.RootVisual = this;
Bridge.Proxy.Attach(r_HwndSource.Handle);
Browser.FlashExtracted += UpdateSize;
}
private void InitHwndSource()
{
var mousePos = Mouse.GetPosition(null);
var activeScreen = Screen.FromPoint(new Point((int)mousePos.X, (int)mousePos.Y));
var parameters = new HwndSourceParameters("SelectionShadow", activeScreen.Bounds.Width, activeScreen.Bounds.Height)
{
UsesPerPixelOpacity = true,
PositionX = 0,
PositionY = 0,
WindowStyle = (int)(WS.POPUP | WS.VISIBLE | WS.CLIPCHILDREN | WS.CLIPSIBLINGS),
ExtendedWindowStyle = (int)(WS_EX.TOPMOST | WS_EX.NOPARENTNOTIFY | WS_EX.TOOLWINDOW),
};
_hwndSource = new HwndSource(parameters)
{
RootVisual = InitRootVisual()
};
}
protected override void Initialize()
{
if (_source == null)
{
ThrowIfNoControl();
HwndSourceParameters p = new HwndSourceParameters();
p.WindowStyle = (int)(WindowStyles.Child | WindowStyles.Visible | WindowStyles.ClipSiblings);
p.ParentWindow = _parentHandle;
p.Width = Math.Abs(_bounds.Left - _bounds.Right);
p.Height = Math.Abs(_bounds.Top - _bounds.Bottom);
_source = new HwndSource(p);
_source.CompositionTarget.BackgroundColor = Brushes.WhiteSmoke.Color;
_source.RootVisual = (Visual)Control.Content;
}
UpdatePlacement();
}
/// <summary>
/// Compare two HwndSourceParameters blocks.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public bool Equals(HwndSourceParameters obj)
{
return((this._classStyleBits == obj._classStyleBits) &&
(this._styleBits == obj._styleBits) &&
(this._extendedStyleBits == obj._extendedStyleBits) &&
(this._x == obj._x) &&
(this._y == obj._y) &&
(this._width == obj._width) &&
(this._height == obj._height) &&
(this._name == obj._name) &&
(this._parent == obj._parent) &&
(this._hwndSourceHook == obj._hwndSourceHook) &&
(this._adjustSizingForNonClientArea == obj._adjustSizingForNonClientArea) &&
(this._hasAssignedSize == obj._hasAssignedSize)
// && (this._colorKey == obj._colorKey)
// && (this._opacity == obj._opacity)
// && (this._opacitySpecified == obj._opacitySpecified)
&& (this._usesPerPixelOpacity == obj._usesPerPixelOpacity)
);
}
/// <summary>
/// Open the screensaver in the preview window of the screensaver settings of Windows.
/// </summary>
/// <param name="previewWndHandle">The handle of the parent window for the preview.</param>
public MainWindow(IntPtr previewWndHandle)
: this()
{
System.Drawing.Rectangle parentRect;
User32.GetClientRect(previewWndHandle, out parentRect);
//MessageBox.Show(parentRect.ToString());
HwndSourceParameters sourceParams = new HwndSourceParameters();
sourceParams.PositionX = 0;
sourceParams.PositionY = 0;
sourceParams.Height = parentRect.Height;
sourceParams.Width = parentRect.Width;
sourceParams.ParentWindow = previewWndHandle;
sourceParams.WindowStyle = (int)(WindowStyles.WS_VISIBLE | WindowStyles.WS_CHILD | WindowStyles.WS_CLIPCHILDREN);
HwndSource winWPFContent = new HwndSource(sourceParams);
winWPFContent.Disposed += new EventHandler(winWPFContent_Disposed);
winWPFContent.RootVisual = grid;
Loaded += PreviewModeWindow_Loaded;
shaderControl.InitializeFragmentShader();
}
public void Setup()
{
ITaskbarHelper helper = ServiceLocator.GetTaskbarHelper();
Rectangle rectIcon = CalculateIconRectFromReBar(helper.TaskBarPosition.IsVertical(), helper.ReBarRect, _desiredOffset);
Rectangle rectReBar = CalculateRebarRectWithIcon(helper.TaskBarPosition.IsVertical(), helper.ReBarRect, rectIcon);
var hwndSourceParams = new HwndSourceParameters(WindowName, rectIcon.Width, rectIcon.Height);
hwndSourceParams.PositionX = rectIcon.X;
hwndSourceParams.PositionY = rectIcon.Y;
// 94000C00 is from the Start button
hwndSourceParams.WindowStyle = 0
| (int)WindowsStyleConstants.WS_VISIBLE // 10000000
| (int)WindowsStyleConstants.WS_CLIPSIBLINGS // 04000000
| (int)WindowsStyleConstants.RBS_BANDBORDERS // 00000400
| (int)WindowsStyleConstants.RBS_FIXEDORDER // 00000800
;
hwndSourceParams.ExtendedWindowStyle = 0
| (int)ExtendedWindowsStyleConstants.WS_EX_TOOLWINDOW //0x00000080
| (int)ExtendedWindowsStyleConstants.WS_EX_LAYERED //0x00080000
| (int)ExtendedWindowsStyleConstants.WS_EX_TOPMOST //0x00000008
;
hwndSourceParams.UsesPerPixelOpacity = true;
_hwndSource = new HwndSource(hwndSourceParams);
_hwndSource.AddHook(TaskBarIconHookProc);
_hwndSource.RootVisual = _control;
var dll = ServiceLocator.GetNativeDll(NativeDllPath);
dll.SetupSubclass(_hwndSource.Handle);
UpdateReBarPosition(helper.ReBarHwnd, helper.ScreenToClient(helper.TaskBarHwnd, rectReBar));
_taskBarControl.SetAllowedSize(rectIcon.Width, rectIcon.Height);
UpdateReBarOffset(helper.ReBarHwnd, _desiredOffset);
}
protected override sealed HWND BuildWindowCore(HWND hwndParent)
{
HwndSourceParameters hwndSourceParameters = new HwndSourceParameters();
hwndSourceParameters.WindowStyle = (int)(WS.VISIBLE | WS.CHILD | WS.CLIPSIBLINGS | WS.CLIPCHILDREN);
//hwndSourceParameters.ExtendedWindowStyle = (int)(WS_EX.NOACTIVATE);
hwndSourceParameters.ParentWindow = hwndParent.DangerousGetHandle();
_hwndSource = new HwndSource(hwndSourceParameters);
_hwndSource.SizeToContent = SizeToContent.Manual;
// TODO: make this an option
// On Vista, or when Win7 uses vista-blit, DX content is not
// available via BitBlit or PrintWindow? If WPF is using hardware
// acceleration, anything it renders won't be available either.
// One workaround is to force WPF to use software rendering. Of
// course, this is only a partial workaround since other content
// like XNA or D2D won't work either.
//_hwndSource.CompositionTarget.RenderMode = RenderMode.SoftwareOnly;
// Set the root visual of the HwndSource to an instance of
// HwndSourceHostRoot. Hook it up as a logical child if
// we are on the same thread.
HwndSourceHostRoot root = new HwndSourceHostRoot();
_hwndSource.RootVisual = root;
root.OnMeasure += OnRootMeasured;
AddLogicalChild(_hwndSource.RootVisual);
SetRootVisual(Child);
return new HWND(_hwndSource.Handle);
}
public HwndSource(HwndSourceParameters parameters)
{
}
/// <summary>
/// Compare two HwndSourceParameters blocks.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public bool Equals(HwndSourceParameters obj)
{
return ((this._classStyleBits == obj._classStyleBits)
&& (this._styleBits == obj._styleBits)
&& (this._extendedStyleBits == obj._extendedStyleBits)
&& (this._x == obj._x)
&& (this._y == obj._y)
&& (this._width == obj._width)
&& (this._height == obj._height)
&& (this._name == obj._name)
&& (this._parent == obj._parent)
&& (this._hwndSourceHook == obj._hwndSourceHook)
&& (this._adjustSizingForNonClientArea == obj._adjustSizingForNonClientArea)
&& (this._hasAssignedSize == obj._hasAssignedSize)
// && (this._colorKey == obj._colorKey)
// && (this._opacity == obj._opacity)
// && (this._opacitySpecified == obj._opacitySpecified)
&& (this._usesPerPixelOpacity == obj._usesPerPixelOpacity)
);
}
internal virtual HwndSourceParameters CreateHwndSourceParameters()
{
HwndSourceParameters param = new HwndSourceParameters(Title, NativeMethods.CW_USEDEFAULT, NativeMethods.CW_USEDEFAULT);
param.UsesPerPixelOpacity = AllowsTransparency;
param.WindowStyle = _Style;
param.ExtendedWindowStyle = _StyleEx;
param.ParentWindow = _ownerHandle;
param.AdjustSizingForNonClientArea = true;
param.HwndSourceHook = new HwndSourceHook(WindowFilterMessage); // hook to process window messages
return param;
}
private HotkeyManager()
{
_keyBindings = new WeakReferenceCollection<KeyBinding>();
var parameters = new HwndSourceParameters("Hotkey sink")
{
HwndSourceHook = HandleMessage,
ParentWindow = HwndMessage
};
_source = new HwndSource(parameters);
SetHwnd(_source.Handle);
}
public HwndSource(int classStyle,
int style,
int exStyle,
int x,
int y,
int width,
int height,
string name,
IntPtr parent,
bool adjustSizingForNonClientArea)
{
SecurityHelper.DemandUIWindowPermission();
HwndSourceParameters parameters = new HwndSourceParameters(name, width, height);
parameters.WindowClassStyle = classStyle;
parameters.WindowStyle = style;
parameters.ExtendedWindowStyle = exStyle;
parameters.SetPosition(x, y);
parameters.ParentWindow = parent;
parameters.AdjustSizingForNonClientArea = adjustSizingForNonClientArea;
Initialize(parameters);
}
public IntPtr Create(int classStyle, int style, int exStyle, int x, int y, int width, int height,
string name, IntPtr parent)
{
HwndSourceParameters parameters = new HwndSourceParameters(name, width, height);
parameters.WindowClassStyle = classStyle;
parameters.WindowStyle = style;
parameters.ExtendedWindowStyle = exStyle;
parameters.SetPosition(x, y);
parameters.ParentWindow = parent;
parameters.HwndSourceHook = HwndSourceHook;
return Create(parameters);
}
private IntPtr Create(HwndSourceParameters parameters)
{
DisposeHWndSource();
_hwndSource = new HwndSource(parameters);
_hwndSource.RootVisual = _decorator;
(_hwndSource as IKeyboardInputSink).KeyboardInputSite = (ElementContainerInternal as IKeyboardInputSite);
return _hwndSource.Handle;
}
public HwndSource(
int classStyle,
int style,
int exStyle,
int x,
int y,
string name,
IntPtr parent)
{
SecurityHelper.DemandUIWindowPermission();
HwndSourceParameters param = new HwndSourceParameters(name);
param.WindowClassStyle = classStyle;
param.WindowStyle = style;
param.ExtendedWindowStyle = exStyle;
param.SetPosition(x, y);
param.ParentWindow = parent;
Initialize(param);
}
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
string[] args = e.Args;
if (args.Length > 0)
{
// Get the 2 character command line argument
string arg = args[0].ToLower(CultureInfo.InvariantCulture).Trim().Substring(0, 2);
switch (arg)
{
case "/o":
//Show the screensaver picking dialog
System.Diagnostics.Process.Start("control.exe", "desk.cpl,screensaver,@screensaver");
this.Shutdown();
break;
case "/c":
// Show the options dialog
Settings settings = new Settings();
settings.Show();
break;
case "/p":
//Show a preview
winPreview = new Main(1);
//A handle to the preview window is passed in
Int32 previewHandle = Convert.ToInt32(args[1]);
IntPtr pPreviewHnd = new IntPtr(previewHandle);
//Use the RECT struct & user32 dll to learn the size of the preview window
RECT lpRect = new RECT();
bool bGetRect = GetClientRect(pPreviewHnd, ref lpRect);
//Make our window fit in it
HwndSourceParameters sourceParams = new HwndSourceParameters("sourceParams");
sourceParams.PositionX = 0;
sourceParams.PositionY = 0;
sourceParams.Height = lpRect.Bottom - lpRect.Top;
sourceParams.Width = lpRect.Right - lpRect.Left;
sourceParams.ParentWindow = pPreviewHnd;
//WindowStyles.WS_VISIBLE | WindowStyles.WS_CHILD | WindowStyles.WS_CLIPCHILDREN
sourceParams.WindowStyle = (int)(0x52000000);
//Start to bind them together
winWPFContent = new HwndSource(sourceParams);
winWPFContent.Disposed += new EventHandler(winWPFContent_Disposed); //Makes sure the preview window exits!!!
//For now, we hide elements that don't scale correctly
//Later, the mainGrid will be able to handle all this for us
winPreview.lblAuthor.Height = 0;
winPreview.lblFeed.Height = 0;
winPreview.lblTitle.Height = 0;
winPreview.imgCore.Margin = new Thickness(1);
//Go!
winWPFContent.RootVisual = winPreview.mainGrid;
break;
case "/s":
// Show screensaver form
ShowScreensaver();
break;
default:
System.Windows.Application.Current.Shutdown();
break;
}
}
else
{
// If no arguments were passed in, show the screensaver
ShowScreensaver();
}
}
/// <summary>
/// Show our Preview user control in the little window provided by the Screen Saver control panel.
/// </summary>
/// <param name="hWnd">The hWnd passed to us by the Screen Saver control panel.</param>
private void ShowPreview(IntPtr hWnd)
{
Log("ShowPreview(): Entered.");
Log(" ShowPreview(): cpl hWnd passed to us = " + hWnd);
if (NativeMethods.IsWindow(hWnd))
{
// Get the rect of the desired parent
int error = 0;
System.Drawing.Rectangle ParentRect = new System.Drawing.Rectangle();
NativeMethods.SetLastErrorEx(0, 0);
Log(" ShowPreview(): Let's Get the ClientRect of that puppy:");
Log(" ShowPreview(): Calling GetClientRect(" + hWnd + ")...");
bool fSuccess = NativeMethods.GetClientRect(hWnd, ref ParentRect);
error = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
Log(" ShowPreview(): GetClientRect() returned bool = " + fSuccess + ", rect = " + ParentRect.ToString());
Log(" GetLastError() returned: " + error.ToString());
Log(" ");
// Create the HwndSource which will host our Preview user control
Log(" ShowPreview(): Let's build a new HwndSource (src), and attach it to the cpl window:");
HwndSourceParameters parameters = new HwndSourceParameters();
parameters.WindowStyle = NativeMethods.WindowStyles.WS_CHILD | NativeMethods.WindowStyles.WS_VISIBLE;
parameters.SetPosition(0, 0); // in theory, our child will use values relative to parents position
parameters.SetSize(ParentRect.Width, ParentRect.Height);
parameters.ParentWindow = hWnd;
HwndSource src = new HwndSource(parameters);
#if DEBUG
// Let's see what Windows thinks
Log(" ShowPreview(): Attached it. Let's see what Windows thinks:");
Log(" ShowPreview(): Calling GetParent(src.Handle)...");
NativeMethods.SetLastErrorEx(0, 0);
IntPtr handle = IntPtr.Zero;
handle = NativeMethods.GetParent(src.Handle);
error = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
Log(" ShowPreview(): GetParent() returned: " + handle.ToString());
Log(" GetLastError() returned: " + error.ToString());
Log(" ");
#endif
// Create the user control and attach it
Log(" ShowPreview(): Creating the user control (Preview)");
PreviewControl Preview = new PreviewControl();
Log(" ShowPreview(): setting src.RootVisual to user control...");
src.RootVisual = Preview;
Preview.Visibility = Visibility.Visible;
#if DEBUG
// Let's find out what Windows thinks
Log(" ShowPreview(): Set it. Let's see what Windows thinks the HwndSource for Preview is:");
HwndSource hs = (HwndSource)HwndSource.FromVisual(Preview);
Log(" ShowPreview(): HwndSource.FromVisual(Preview) is: " + HwndSource.FromVisual(Preview));
Log(" ShowPreview(): Let's see what Windows thinks the parent hWnd of Preview is:");
Log(" ShowPreview(): Calling GetParent((HwndSource)HwndSource.FromVisual(Preview).handle)...");
NativeMethods.SetLastErrorEx(0, 0);
IntPtr ucHandle = IntPtr.Zero;
handle = NativeMethods.GetParent(hs.Handle);
error = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
Log(" ShowPreview(): GetParent() returned: " + handle.ToString());
Log(" GetLastError() returned: " + error.ToString());
Log(" ");
Log(" ShowPreview(): Is the src window visible?");
Log(" ShowPreview(): Calling IsWindowVisible(src.Handle)...");
NativeMethods.SetLastErrorEx(0, 0);
bool fVisible = NativeMethods.IsWindowVisible(src.Handle);
error = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
Log(" ShowPreview(): IsWindowVisible() returned: " + fVisible.ToString());
Log(" GetLastError() returned: " + error.ToString());
Log(" ");
#endif
// Let's hook into src's message pump
Log(" ShowPreview(): Let's hook into src's message pump");
// TODO: determine if we need to hook into message pump
}
else
{
Log(" ShowPreview(): Invalid hWnd passed: " + hWnd.ToString());
throw new ArgumentException("Invalid hWnd passed to ShowPreview(): " + hWnd.ToString());
}
Log("ShowPreview(): exiting.");
}
private void InitHwndSource()
{
if(m_hwndSource != null) return;
int classStyle = 0;
int style = 0;
int styleEx = Win32.WS_EX_NOACTIVATE;
HwndSourceParameters parameters = new HwndSourceParameters()
{
UsesPerPixelOpacity = true,
WindowClassStyle = classStyle,
WindowStyle = style,
ExtendedWindowStyle = styleEx,
PositionX = (int)(m_parentBoundingBox.X + m_boundingBox.X),
PositionY = (int)(m_parentBoundingBox.Y + m_boundingBox.Y),
Width = (int)(m_boundingBox.Width),
Height = (int)(m_boundingBox.Height)
};
m_hwndSource = new HwndSource(parameters);
m_hwndSource.RootVisual = m_hwndAdornmentRoot;
m_hwndSource.AddHook(WndProc);
m_shown = false;
}
/// <summary>
/// Convert the framework element to a Window Handle so it can be serialized.
/// </summary>
/// <param name="frameworkElement">The framework element to convert to a Window Handle.</param>
/// <returns>The Window Handle that is hosting the framework element.</returns>
static long CreateWindowHandle(Visual frameworkElement)
{
// ReSharper disable InconsistentNaming
const int WS_VISIBLE = 0x10000000;
// ReSharper restore InconsistentNaming
var parameters = new HwndSourceParameters(String.Format("NewWindowHost{0}", Guid.NewGuid()), 1, 1);
parameters.WindowStyle &= ~WS_VISIBLE;
var intPtr = new HwndSource(parameters)
{
RootVisual = frameworkElement
}.Handle;
return intPtr.ToInt64();
}
public HwndSource(HwndSourceParameters parameters)
{
Initialize(parameters);
}
public HwndSource(HwndSourceParameters parameters)
{
}
protected override sealed HWND BuildWindowOverride(HWND hwndParent)
{
HwndSourceParameters hwndSourceParameters = new HwndSourceParameters();
hwndSourceParameters.WindowStyle = (int)(WS.VISIBLE | WS.CHILD | WS.CLIPSIBLINGS | WS.CLIPCHILDREN);
hwndSourceParameters.ParentWindow = hwndParent.DangerousGetHandle();
_hwndSource = new HwndSource(hwndSourceParameters);
_hwndSource.SizeToContent = SizeToContent.Manual;
// Set the root visual of the HwndSource to an instance of
// HwndSourceHostRoot. Hook it up as a logical child if
// we are on the same thread.
HwndSourceHostRoot root = new HwndSourceHostRoot();
_hwndSource.RootVisual = root;
root.OnMeasure += OnRootMeasured;
AddLogicalChild(_hwndSource.RootVisual);
SetRootVisual(Child);
return new HWND(_hwndSource.Handle);
}
private void Initialize(HwndSourceParameters parameters)
{
_mouse = new SecurityCriticalDataClass<HwndMouseInputProvider>(new HwndMouseInputProvider(this));
_keyboard = new SecurityCriticalDataClass<HwndKeyboardInputProvider>(new HwndKeyboardInputProvider(this));
_layoutHook = new HwndWrapperHook(LayoutFilterMessage);
_inputHook = new HwndWrapperHook(InputFilterMessage);
_hwndTargetHook = new HwndWrapperHook(HwndTargetFilterMessage);
_publicHook = new HwndWrapperHook(PublicHooksFilterMessage);
// When processing WM_SIZE, LayoutFilterMessage must be invoked before
// HwndTargetFilterMessage. This way layout will be updated before resizing
// HwndTarget, resulting in single render per resize. This means that
// layout hook should appear before HwndTarget hook in the wrapper hooks
// list. If this is done the other way around, first HwndTarget resize will
// force re-render, then layout will be updated according to the new size,
// scheduling another render.
HwndWrapperHook[] wrapperHooks = { _hwndTargetHook, _layoutHook, _inputHook, null };
if (null != parameters.HwndSourceHook)
{
// In case there's more than one delegate, add these to the event storage backwards
// so they'll get invoked in the expected order.
Delegate[] handlers = parameters.HwndSourceHook.GetInvocationList();
for (int i = handlers.Length -1; i >= 0; --i)
{
_hooks += (HwndSourceHook)handlers[i];
}
wrapperHooks[3] = _publicHook;
}
_restoreFocusMode = parameters.RestoreFocusMode;
_acquireHwndFocusInMenuMode = parameters.AcquireHwndFocusInMenuMode;
// A window must be marked WS_EX_LAYERED if (and only if):
// 1) it is not a child window
// -- AND --
// 2) a color-key is specified
// 3) or an opacity other than 1.0 is specified
// 4) or per-pixel alpha is requested.
if((parameters.WindowStyle & NativeMethods.WS_CHILD) == 0 &&
( //parameters.ColorKey != null ||
//!MS.Internal.DoubleUtil.AreClose(parameters.Opacity, 1.0) ||
parameters.UsesPerPixelOpacity))
{
parameters.ExtendedWindowStyle |= NativeMethods.WS_EX_LAYERED;
}
else
{
parameters.ExtendedWindowStyle &= (~NativeMethods.WS_EX_LAYERED);
}
_constructionParameters = parameters;
_hwndWrapper = new HwndWrapper(parameters.WindowClassStyle,
parameters.WindowStyle,
parameters.ExtendedWindowStyle,
parameters.PositionX,
parameters.PositionY,
parameters.Width,
parameters.Height,
parameters.WindowName,
parameters.ParentWindow,
wrapperHooks);
_hwndTarget = new HwndTarget(_hwndWrapper.Handle);
//_hwndTarget.ColorKey = parameters.ColorKey;
//_hwndTarget.Opacity = parameters.Opacity;
_hwndTarget.UsesPerPixelOpacity = parameters.UsesPerPixelOpacity;
if(_hwndTarget.UsesPerPixelOpacity)
{
_hwndTarget.BackgroundColor = Colors.Transparent;
// Prevent this window from being themed.
UnsafeNativeMethods.CriticalSetWindowTheme(new HandleRef(this, _hwndWrapper.Handle), "", "");
}
_constructionParameters = null;
if (!parameters.HasAssignedSize)
_sizeToContent = SizeToContent.WidthAndHeight;
_adjustSizingForNonClientArea = parameters.AdjustSizingForNonClientArea;
_treatAncestorsAsNonClientArea = parameters.TreatAncestorsAsNonClientArea;
// Listen to the UIContext.Disposed event so we can clean up.
// The HwndTarget cannot work without a MediaContext which
// is disposed when the UIContext is disposed. So we need to
// dispose the HwndTarget and also never use it again (to
// paint or process input). The easiest way to do this is to just
// dispose the HwndSource at the same time.
_weakShutdownHandler = new WeakEventDispatcherShutdown(this, this.Dispatcher);
// Listen to the HwndWrapper.Disposed event so we can clean up.
// The HwndTarget cannot work without a live HWND, and since
// the HwndSource represents an HWND, we make sure we dispose
// ourselves if the HWND is destroyed out from underneath us.
_hwndWrapper.Disposed += new EventHandler(OnHwndDisposed);
_stylus = new SecurityCriticalDataClass<HwndStylusInputProvider>(new HwndStylusInputProvider(this));
// WM_APPCOMMAND events are handled thru this.
_appCommand = new SecurityCriticalDataClass<HwndAppCommandInputProvider>(new HwndAppCommandInputProvider(this));
// Register the top level source with the ComponentDispatcher.
if (parameters.TreatAsInputRoot)
{
_weakPreprocessMessageHandler = new WeakEventPreprocessMessage(this, false);
}
AddSource();
// Register dropable window.
// The checking CallerHasPermissionWithAppDomainOptimization will call RegisterDropTarget
// safely without the security exception in case of no unmanaged code permission.
// So RegisterDropTarget will be called safely in case of having the unmanged code permission.
// Otherwise, the security exception cause System.Printing to be instatiated which will
// load system.drawing module.
if (_hwndWrapper.Handle != IntPtr.Zero &&
SecurityHelper.CallerHasPermissionWithAppDomainOptimization(new SecurityPermission(SecurityPermissionFlag.UnmanagedCode)))
{
// This call is safe since DragDrop.RegisterDropTarget is checking the unmanged
// code permission.
DragDrop.RegisterDropTarget(_hwndWrapper.Handle);
_registeredDropTargetCount++;
}
}