public bool ModifyStyleEx(PInvokeWindows.SetWindowLongFlags dwRemove, PInvokeWindows.SetWindowLongFlags dwAdd)
{
int GWL_STYLE = -16;
PInvokeWindows.SetWindowLongFlags dwStyle = (PInvokeWindows.SetWindowLongFlags)PInvokeWindows.GetWindowLongPtr(_hwnd, GWL_STYLE);
PInvokeWindows.SetWindowLongFlags dwNewStyle = (dwStyle & ~dwRemove) | dwAdd;
if (dwStyle == dwNewStyle)
{
return(false);
}
PInvokeWindows.SetWindowLongPtr(_hwnd, GWL_STYLE, (IntPtr)dwNewStyle);
return(true);
}