WTL中菜单栏及工具栏项状态改变应注意的地方

WTL中菜单栏项和工具栏按钮的状态可通过UISetCheck(int ITEM_ID, int STATE)进行设置

需要注意的是要将需要改变状态的控件ID添加到UI更新映射中

/* MainFrame.h */
class CMainFrame : public CFrameWindowImpl<CMainFrame>,
                   public CUpdateUI<CMainFrame>,
                   public CIdleHandler {
    public:
    .....
    virtual BOOL OnIdle();

    BEGIN_UPDATE_UI_MAP(CMainFrame)
        UPDATE_ELEMENT(ID_XXX, UPDUI_XXXX)
        ....
    END_UPDATE_UI_MAP()
    .....
}

/* MainFrame.cpp */
BOOL CMainFrame::OnIdle() {
    UIUpdateToolBar();
    return FALSE;
}

LRESULT CMainFrame::OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/) {
    ......
    UISetCheck(ID_XXX, 1);
    ......
    return 0;
}