为什么CDialogBar显示后，按钮是灰色的？
BEGIN_MESSAGE_MAP(CLeftDlgBar, CDialogBar) ON_UPDATE_COMMAND_UI(IDC_BUTTON1,OnUpdateButton1) END_MESSAGE_MAP() void CLeftDlgBar::OnUpdateButton1(CCmdUI* pCmdUI) { pCmdUI->Enable(TRUE); //using...
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