private IntPtr OverridenWndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
{
var msg = (WM)uMsg;
var originalRet = User32Methods.CallWindowProc(originalWndProc, hWnd, uMsg, wParam, lParam);
switch (msg)
{
case WM.LBUTTONDOWN:
{
var mousePoint = new System.Drawing.Point(lParam.ToInt32());
var dragHandler = browser.DragHandler as CefSharpDragHandler;
if (dragHandler.DragRegion.IsVisible(mousePoint))
{
// Release the capture of browser window and send a caption drag to the main window
User32Methods.ReleaseCapture();
User32Methods.SendMessage(mainHandle, (uint)WM.NCLBUTTONDOWN, new IntPtr(2), IntPtr.Zero);
}
break;
}
case WM.NCHITTEST:
{
// If we hit a non client area (our overlapped frame) then we'll force an NCHITTEST to bubble back up to the main process
IntPtr hitTest = HitTestNCA(hWnd, wParam, lParam);
if (hitTest != IntPtr.Zero)
{
return(new IntPtr(-1));
}
break;
}
}
return(originalRet);
}
private IntPtr WndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
{
_prevWndProc = User32Helpers.GetWindowLongPtr(hWnd, WindowLongFlags.GWLP_USERDATA);
var msg = (WM)uMsg;
switch (msg)
{
case WM.LBUTTONDOWN:
if (_forwardAction != null)
{
if (IsCursorInDraggableRegion(hWnd, lParam))
{
Message message = new Message();
message.Hwnd = hWnd;
message.Value = uMsg;
message.WParam = wParam;
message.LParam = lParam;
_forwardAction(message);
return(IntPtr.Zero);
}
}
break;
}
return(User32Methods.CallWindowProc(_prevWndProc, hWnd, uMsg, wParam, lParam));
}
private IntPtr OverridenWndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
{
var msg = (WM)uMsg;
var originalRet = User32Methods.CallWindowProc(originalWndProc, hWnd, uMsg, wParam, lParam);
switch (msg)
{
case WM.NCHITTEST:
{
// If we hit a non client area (our overlapped frame) then we'll force an NCHITTEST to bubble back up to the main process
IntPtr hitTest = HitTestNCA(hWnd, wParam, lParam);
if (hitTest != IntPtr.Zero)
{
return(new IntPtr(-1));
}
break;
}
}
return(originalRet);
}
protected virtual void OnMessageDefault(ref WindowMessage msg)
{
msg.SetResult(User32Methods.CallWindowProc(this.m_baseWindowProcPtr, msg.Hwnd, (uint)msg.Id, msg.WParam,
msg.LParam));
}
