Ownerdraw按钮的悬停效果

Question

我设置了ownerdraw按钮。我使用Rectangle并使用消息WM_DRAWITEM。并在按钮中，成功判断ON / OFF。但我想将悬停效果添加为css：hover。我想用几秒钟改变颜色。这很难。我搜索了几天。但我找不到解决方案。这是我的第一个问题。我很抱歉英语不好。

我试图抓住鼠标（x，y）。但是我不能。

case WM_MOUSEMOVE:
x = LOWORD(lp); 
y = HIWORD(lp); 


if(buttonlefttop<= x <= buttonlefttop + buttonwidth && buttontoptop<= y 
<= buttontoptop + buttonheight){
            std::cout<<"[INFO] "<<"ON
";
}else{
            std::cout<<"[INFO] "<<"OFF
";
}

case WM_DRAWITEM：hdc =（（LPDRAWITEMSTRUCT）（lp）） - > hDC;

        if (((LPDRAWITEMSTRUCT)(lp))->itemState & ODS_SELECTED) {
            hpen = CreatePen(PS_SOLID, 5, RGB(80, 91, 109));
            hbr = CreateSolidBrush(RGB(80, 91, 109));

            SelectObject(hdc, hpen);
            SelectObject(hdc, hbr);

            std::cout<<"[INFO] ON
";
        }else {
            hpen = CreatePen(PS_SOLID, 5, RGB(73, 147, 120));
            hbr = CreateSolidBrush(RGB(73, 147, 120));

            SelectObject(hdc, hpen);
            SelectObject(hdc, hbr);

            std::cout<<"[INFO] OFF
";
        }
        Rectangle(hdc , 0 , 0 ,
         buttonwidth,buttonheight
        );
        DeleteObject(SelectObject(hdc , GetStockObject(WHITE_BRUSH)));
        return TRUE;

我不能添加hovereffect。