4.1 步骤4菜单命令的更新控制 4.添加菜单响应函数 Class Name Objects IDs Messages CMenu Test view ID DRAW ENABLE COMMAND 2. CMenu Test View ID DRAW DISABLE COMMAND 3. CMenu Test view ID DRAW Rect UPDATE COMMAND UI 4. CMenu Test view D DRAW ENABLE UPDATE COMMAND UI 5. CMenu Test view ID DRAW DISABLE UPDATE COMMAND UI void CMenu TestView OnUpdate DrawRect(CCmdUI* pcmdUl) pCmdUl->Enable(m Enable步骤4 菜单命令的更新控制 4. 添加 菜单响应函数 Class Name Objects IDs Messages 1. CMenuTestView ID_DRAW_ENABLE COMMAND 2. CMenuTestView ID_DRAW_ DISABLE COMMAND 3. CMenuTestView ID_DRAW_RECT UPDATE_COMMAND_UI 4. CMenuTestView ID_DRAW_ENABLE UPDATE_COMMAND_UI 5. CMenuTestView ID_DRAW_ DISABLE UPDATE_COMMAND_UI 4.1 void CMenuTestView::OnUpdateDrawRect(CCmdUI* pCmdUI) { pCmdUI->Enable(m_Enable); }