(CEGUI)如何创建控件 ------ScrollablePane(滚动区域)

    CEGUI::Window* d_root;     

    CEGUI::ScrollablePane* d_pane;

    // 创建滚动区
    d_pane = static_cast<ScrollablePane*>(d_wm->createWindow("WindowsLook/ScrollablePane"));
    d_pane->setArea(URect(UDim(0,0),bar_bottom,UDim(0.8,0),UDim(0.8,0)));

    // 关闭自动滚动
    d_pane->setContentPaneAutoSized(false);

    // 滚动区域大小
    d_pane->setContentPaneArea(CEGUI::Rect(0,0,1000,500));
    d_root->addChildWindow(d_pane);