当前窗口控制（显示、隐藏、破坏）

void clicked()
{
    Dialog          Dialog      = new Dialog("Destroy Content Pane Window");
    DialogField     dlgHide     = Dialog.addField(typeid(Noyes),"Hide Content Pane Window");
    DialogField     dlgShow     = Dialog.addField(typeid(Noyes),"Show Content Pane Window");
    DialogField     dlgDestroy  = Dialog.addField(typeid(Noyes),"Destroy Content Pane Window");
    hWnd            hWnd;
    HWND            contentPane;
    #WinApi
;

    Dialog.doInit();
    dlgDestroy.value(1);
    if (!Dialog.run())
        return ;
    if (dlgHide.value() && dlgShow.value() && dlgDestroy.value())
        throw error("Please choose one of checkbox!");
    contentPane = WinApi::findWindowEx(WinAPI::findWindowEx(infolog.hWnd(), 0, 'MDIClient', ''),0,'ContentFrame','' );
    if (contentPane)
    {
        if (dlgHide.value())
            WinApi::ShowWindow(contentPane, #SW_HIDE); //#SW_SHOW //#SW_HIDE
        if (dlgShow.value())
            WinApi::ShowWindow(contentPane, #SW_SHOW); //#SW_SHOW //#SW_HIDE
        if (dlgDestroy.value())
            WinApi::destroyWindow(contentPane);//forever disable to be ContentPane
　　}
}