请高手指点一二.感激不尽![求助]

Question

请问各位辈:
    我有两个类一个是CMDIChildWnd继承的类,一个是CListView继承的类,我想在CMDIChildWnd类里发出一个消息来使CListView类发生变化,请问该怎么做.小弟初学,希望说的详细一点.感激不尽!

Answer 1

将 CListView 的窗口句柄做成全局变量 g_hWnd::SendMessage(g_hWnd, XXX, XXX, XXX);

Answer 2

#define   OUTPUT_DBCLICK   WM_USER + 100
 cpp filevoid CMDI_XXX::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
CMainFrame *m = (CMainFrame *)AfxGetApp()->m_pMainWnd;
CView *v = m->GetActiveFrame()->GetActiveView();
if(v && v->IsKindOf(RUNTIME_CLASS(CView)))
::SendMessage(v->m_hWnd, OUTPUT_DBCLICK, NULL, NULL);

CListBox::OnLButtonDblClk(nFlags, point);
}///////////////////////////////////////////
Head fileafx_msg void OnOutputDbClick(WPARAM wParam, LPARAM lParam);cpp fileBEGIN_MESSAGE_MAP(CGs510View, CRichEditView)
//{{AFX_MSG_MAP(CGs510View)
         ......
ON_MESSAGE(OUTPUT_DBCLICK, OnOutputDbClick)
//}}AFX_MSG_MAP
// Standard printing commands
         .........
END_MESSAGE_MAP()
void CView_XXX::OnOutputDbClick(WPARAM wParam, LPARAM lParam)
{
       处理消息
}