MFC CStatic控件在DrawItem中自绘

1.实现PreSubclassWindow

void CStaticHref::PreSubclassWindow()
{
// TODO: Add your specialized code here and/or call the base class


CStatic::PreSubclassWindow();


DWORD dwStyle = GetStyle();  
SetWindowLong(GetSafeHwnd(),GWL_STYLE,dwStyle | SS_OWNERDRAW);
//ModifyStyle(NULL, SS_OWNERDRAW);
}

2.在virtual void DrawItem(LPDRAWITEMSTRUCT /*lpDrawItemStruct*/);中完成相关绘制

3.确保消息映射中不能有：ON_WM_PAINT（也可以直接在OnPaint中绘制）、ON_WM_DRAWITEM消息，否则DrawItem函数不会被调用

注：第二步的是DrawItem而非OnDrawItem。OnDrawItem是ON_WM_DRAWITEM消息的处理函数，是处理子控件发送过来的自绘消息的