private void EnsureExtended()
{
// We completely ignore anything for extending client area in Avalonia Window impl b/c
// we're doing super specialized stuff to ensure the best experience interacting with
// the window and mimic-ing a "modern app"
var marg = new Win32Interop.MARGINS();
// WS_OVERLAPPEDWINDOW
// 0x00C00000L 0x00080000L 不需要标题栏
// 0x00040000L 创建一个具有粗框的窗口可以用来调整窗口的大小
var style = 0x00000000L | 0X00800000L | 0x00020000L | 0x00010000L;
// This is causing the window to appear solid but is completely transparent. Weird...
//Win32Interop.GetWindowLongPtr(Hwnd, -16).ToInt32();
RECT frame = new RECT();
Win32Interop.AdjustWindowRectExForDpi(ref frame,
(int)style, false, 0, (int)(RenderScaling * 96));
marg.topHeight = -frame.top + (_isWindows11 ? 0 : -1);
Win32Interop.DwmExtendFrameIntoClientArea(Handle.Handle, ref marg);
}