ViewManagerOnAreaSelectionBeginEvent Event

public event ViewAreaSelectionBeginEventHandler OnAreaSelectionBeginEvent

// VIZCore3D.NET Control
private VIZCore3D.NET.VIZCore3DControl vizcore3d;

public void Example()
{
    vizcore3d.View.OnAreaSelectionBeginEvent += View_OnAreaSelectionBeginEvent;
    vizcore3d.View.OnAreaSelectionEndEvent += View_OnAreaSelectionEndEvent;
}

private void View_OnAreaSelectionBeginEvent(object sender, ref EventManager.ViewAreaSelectionBeginEventArgs e)
{
    // Single Language Apply
    e.CustomText = "Drag Selection Box Activated";

    // Multi Language Apply
    LanguageKind language = vizcore3d.Language.GetLanguage();
    switch (language)
    {
        case LanguageKind.UNKNOWN:
            e.CustomText = "Drag Selection Box Activated";
            break;

        case LanguageKind.KOREAN:
            e.CustomText = "Drag 선택 상자 이벤트 커스텀 텍스트 적용";
            break;

        case LanguageKind.ENGLISH:
            e.CustomText = "Apply Drag Selection Box Custom Text";
            break;

        case LanguageKind.CHINESE:
            // Apply Drag Selection Box Custom Text
            e.CustomText = "应用拖动选择框自定义文本";  
            break;

        case LanguageKind.JAPANESE:
            // Apply Drag Selection Box Custom Text
            e.CustomText = "ドラッグ選択ボックスのカスタムテキストを適用";  
            break;

        default:
            e.CustomText = "Drag Selection Box Activated";
            break;
    }
}

private void View_OnAreaSelectionEndEvent(object sender, EventManager.ViewAreaSelectionEndEventArgs e)
{
    MessageBox.Show($"Begin Point : {e.BeginPoint} \nEnd Point : {e.EndPoint}");
}