VC 窗体非客户区的绘制 OnNcPaint(UINT message, WPARAM wParam, LPARAM lParam)
voidCSkinAndLangDlg::OnNcPaint(UINTmessage,WPARAMwParam,LPARAMlParam)
{
HDCWindowDC=::GetWindowDC(m_hWnd);
////取得整个窗体矩形
RECTWindowRect;
GetWindowRect(&WindowRect);
OffsetRect(&WindowRect,-WindowRect.l