private ChromeWidgetMessageInterceptor(IntPtr window, IntPtr childHandle, IFramelessOptions framelessOptions, Action <Message> forwardAction)
{
_parentHandle = window;
_childHandle = childHandle;
_childWndProc = WndProc;
_framelessOptions = framelessOptions;
_childWndProcHandle = Marshal.GetFunctionPointerForDelegate(_childWndProc);
_oldWindProc = NativeMethods.SetWindowLongPtr(_childHandle, (int)WindowLongFlags.GWLP_WNDPROC, _childWndProcHandle);
NativeMethods.SetWindowLongPtr(_childHandle, (int)WindowLongFlags.GWLP_USERDATA, _oldWindProc);
_forwardAction = forwardAction;
}
/// <summary>
/// Asynchronously wait for the Chromium widget window to be created for the given ChromiumWebBrowser,
/// and when created hook into its Windows message loop.
/// </summary>
/// <param name="window">The browser window to intercept Windows messages for.</param>
/// <param name="framelessOptions">The frameless options.</param>
/// <param name="forwardAction">This action will be called whenever a Windows message is received.</param>
internal static void Setup(IntPtr window, IFramelessOptions framelessOptions, Action <Message> forwardAction)
{
Task.Run(() =>
{
try
{
bool foundWidget = false;
while (!foundWidget)
{
if (ChromeWidgetHandleFinder.TryFindHandle(window, out var chromeWidgetHostHandle))
{
foundWidget = true;
new ChromeWidgetMessageInterceptor(window, chromeWidgetHostHandle, framelessOptions, forwardAction);
}
else
{
// Chrome hasn't yet set up its message-loop window.
Thread.Sleep(10);
}
}
}
catch { }
});
}
public static ChromelyConfiguration WithFramelessOptions(this ChromelyConfiguration configuration, IFramelessOptions framelessOptions)
{
if (configuration != null)
{
if (configuration.HostPlacement == null)
{
throw new Exception("HostPlacement cannot be null.");
}
configuration.HostPlacement.FramelessOptions = framelessOptions;
}
return(configuration);
}
