自定义绘制CProgressBarCtrl win32

我想要一个自定义进度条控件，例如显示一些移动的斜线或像this或在进度条控件内绘制图像。我已经在网上搜索和列表视图为动态子类的自定义绘制的一些例子，但代码不会调用绘画方法：自定义绘制CProgressBarCtrl win32

public: 
    BOOL SubclassWindow(HWND hWnd) 
     { 
      ATLASSERT(m_hWnd==NULL); 
      ATLASSERT(::IsWindow(hWnd)); 
      BOOL bRet = CWindowImpl<CMyProgressControl, CProgressBarCtrl>::SubclassWindow(hWnd); 
      return bRet; 
     } 

    BEGIN_MSG_MAP(CMyProgressControl) 
     CHAIN_MSG_MAP(CCustomDraw<CMyProgressControl>) 
    END_MSG_MAP() 

    DWORD OnPrePaint(int /*idCtrl*/, LPNMCUSTOMDRAW /*lpNMCustomDraw*/) 
    {   
     return CDRF_NOTIFYITEMDRAW; 
    } 
    DWORD OnItemPrePaint(int /*idCtrl*/, LPNMCUSTOMDRAW lpNMCustomDraw) 
    { 
     NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>(lpNMCustomDraw); 

     // This is the prepaint stage for an item. Here's where we set the 
     // item's text color. Our return value will tell Windows to draw the 
     // item itself, but it will use the new color we set here for the background 

     COLORREF crText; 


      crText = RGB(200,200,255); 

     // Store the color back in the NMLVCUSTOMDRAW struct. 
     pLVCD->clrTextBk = crText; 


     // Tell Windows to paint the control itself. 
     return CDRF_DODEFAULT; 
    }

来源

2012-10-19 fire xzanderr