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我在對話框中有一個CTreeCtrl並捕獲TVN_SELCHANGED消息,但執行不會進入處理程序。什麼可能是錯誤的? 我的代碼:不能捕捉TVN_SELCHANGED
BEGIN_MESSAGE_MAP(CMaterParamExtDlg, CDialog)
ON_NOTIFY(TVN_ITEMCHANGING, IDC_MATERIAL_PROP_TREE, OnSelChangingTreeCtrl)
ON_NOTIFY(TVN_ITEMCHANGED, IDC_MATERIAL_PROP_TREE, OnSelChangedTreeCtrl)
END_MESSAGE_MAP()
void CMaterParamExtDlg :: OnSelChangedTreeCtrl (NMHDR* pNMHDR, LRESULT* pResult)
{
if (m_TreeCtrl != 0)
{
HTREEITEM treeitem = m_TreeCtrl->GetSelectedItem();
CString treeitemtext = m_TreeCtrl->GetItemText(treeitem);
MessageBox(treeitemtext);
}
*pResult = 0;
}
void CMaterParamExtDlg :: OnSelChangingTreeCtrl (NMHDR* pNMHDR, LRESULT* pResult)
{
if (m_TreeCtrl != 0)
{
HTREEITEM treeitem = m_TreeCtrl->GetSelectedItem();
CString treeitemtext = m_TreeCtrl->GetItemText(treeitem);
MessageBox(treeitemtext);
}
*pResult = 0;
}
我試圖用的斷點,看是否執行進入處理程序,但沒有任何反應。
樹控件屬性:
CONTROL "",IDC_MATERIAL_PROP_TREE,"SysTreeView32",TVS_HASBUTTONS
| TVS_HASLINES | TVS_LINESATROOT | TVS_DISABLEDRAGDROP
| TVS_TRACKSELECT | WS_BORDER | WS_HSCROLL | WS_TABSTOP,4,4,115,218
您示例中的消息映射不包含「TVN_SELCHANGED」條目。你確定你發佈了正確的代碼嗎? –
@Joachim Pileborg非常感謝。我的消息不匹配。奇怪的是,我沒有注意到它。 – user1260953