MFC若干小问题解决方案(1)

afx_msg void OnUpdateBtn(CCmdUI* pCmdUI);

ON_UPDATE_COMMAND_UI(IDC_BROWSER,  &ImageInfoView::OnUpdateBtn)

void ImageInfoView::OnUpdateBtn(CCmdUI* pCmdUI)   

{      
    pCmdUI->Enable(true);
}

WPARAM wparam = MAKEWPARAM(SB_THUMBPOSITION, pos);    
pList.SendMessage(WM_VSCROLL, wparam, 0);

extern UINT AFX_WM_PROPERTY_COMMAND_CLICKED;
UINT AFX_WM_PROPERTY_COMMAND_CLICKED = ::RegisterWindowMessage(_T("AFX_WM_PROPERTY_COMMAND_CLICKED"));

afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
ON_WM_LBUTTONUP()      
void CMFCPropertyGridCtrlEx::OnLButtonUp(UINT nFlags, CPoint point) 
{
     CMFCPropertyGridCtrl::OnLButtonUp(nFlags, point);
     CMFCPropertyGridProperty* pProp =  HitTest(point); 
     if (pProp)
     {
         GetOwner ()->SendMessage(AFX_WM_PROPERTY_COMMAND_CLICKED, GetDlgCtrlID (), LPARAM(pProp));
     }
}

ON_REGISTERED_MESSAGE(AFX_WM_PROPERTY_COMMAND_CLICKED, &ImageInfoView::OnPropertyClicked)
LRESULT ImageInfoView::OnPropertyClicked(WPARAM wParam, LPARAM lParam)
{
     CMFCPropertyGridProperty* pProp = (CMFCPropertyGridProperty*)lParam;
     if (pProp)
     {
         //do something
     }
     return 0;
}