如何知道在MDI中当前有多少子窗口？

[m_Csdn]

？？

[small_wei]

int CMainFrame::GetCountCMDIChildWnds()
{
int count = 0;

CMDIChildWnd* pChild = GetNextMDIChildWnd();
while (pChild)
{
count++;
pChild = GetNextMDIChildWnd();
}
return count;

}

CMDIChildWnd* CMainFrame::GetNextMDIChildWnd()
{
if (!m_pWndCurrentChild)
{

m_pWndCurrentChild = m_wndMDIClient.GetWindow(GW_CHILD);
}
else
{

m_pWndCurrentChild=(CMDIChildWnd*)m_pWndCurrentChild->GetWindow(GW_HWNDNEXT);
}

if (!m_pWndCurrentChild)
{

return NULL;
}

// Check the kind of window
if (!m_pWndCurrentChild->GetWindow(GW_OWNER))
{
if (m_pWndCurrentChild->IsKindOf(RUNTIME_CLASS(CMDIChildWnd)))
{
return (CMDIChildWnd*)m_pWndCurrentChild;
}
else
{
return GetNextMDIChildWnd();
}
}
else
{
return GetNextMDIChildWnd();
}
}