Ces.WinForm.UI.CesMessageBox.CesMessage.Show("Hello World...");

    public enum CesMessageBoxIconEnum
    {
        None,
        MessageAsterisk,
        MessageExclamation,
        MessageHandStop,
        MessageInformation,
        MessageQuestion,
        MessageStop,
        MessageSuccess,
        MessageWarning,
        MessageError,
    }

    public enum CesMessageBoxSizeEnum
    {
        Small, //430 * 160
        Medium, //640 * 230
        Large, //890 * 480
    }

    public enum CesMessageBoxButtonsEnum
    {
        Ok,
        OkCancel,
        RetryCancel,
        YesNo,
        YesNoCancel,
        AbortRetryIgnore,
    }

    public enum CesMessageBoxButtonImageEnum
    {
        TextOnly,
        ImageOnly,
        TextAndImage
    }

    public class CesMessageBoxOptions
    {
        public Size _small { get; set; } = new Size(430, 160);
        public Size _medium { get; set; } = new Size(640, 230);
        public Size _large { get; set; } = new Size(890, 480);

        public CesMessageBoxOptions()
        {
            Title = "Message Box";
            Icon = CesMessageBoxIconEnum.MessageInformation;
            Buttons = CesMessageBoxButtonsEnum.Ok;
            TopMost = true;
            Size = CesMessageBoxSizeEnum.Small;
            ButtonImage = CesMessageBoxButtonImageEnum.TextAndImage;
            TextImageRelation = TextImageRelation.ImageAboveText;
            ButtonCaption = new CesMessageBoxButtonCaption();
        }

        public string? Title { get; set; }
        public CesMessageBoxIconEnum Icon { get; set; }
        public CesMessageBoxButtonsEnum Buttons { get; set; }
        public bool TopMost { get; set; }
        public CesMessageBoxSizeEnum Size { get; set; }
        public CesMessageBoxButtonImageEnum ButtonImage { get; set; }
        public System.Windows.Forms.TextImageRelation TextImageRelation { get; set; }
        public CesMessageBoxButtonCaption ButtonCaption { get; set; }
    }

public class CesMessageBoxButtonCaption
{
    public string CesMessageBoxOk { get; set; } = "Ok";
    public string CesMessageBoxYes { get; set; } = "Yes";
    public string CesMessageBoxNo { get; set; } = "No";
    public string CesMessageBoxCancel { get; set; } = "Cancel";
    public string CesMessageBoxRetry { get; set; } = "Retry";
    public string CesMessageBoxAbort { get; set; } = "Abort";
    public string CesMessageBoxIgnore { get; set; } = "Ignore";
    public string CesMessageBoxCopy { get; set; } = "Copy";
}

var opt = new Ces.WinForm.UI.CesMessageBox.CesMessageBoxOptions
{
    Title = "Ces Win UI",
    Icon = Ces.WinForm.UI.CesMessageBox.CesMessageBoxIconEnum.MessageHandStop,
    Buttons = Ces.WinForm.UI.CesMessageBox.CesMessageBoxButtonsEnum.YesNo,
    TopMost = false,
    Size = Ces.WinForm.UI.CesMessageBox.CesMessageBoxSizeEnum.Medium
};

Ces.WinForm.UI.CesMessageBox.CesMessage.Show("Hello World...!", opt);