ScreenToGif.Modern.tbSize_KeyDown C# (CSharp) Method

        private void tbSize_KeyDown(object sender, KeyEventArgs e)
        {
            Application.DoEvents();
            if (e.KeyData == Keys.Enter)
            {
                _screenSizeEdit = true;
                int heightTb = Convert.ToInt32(tbHeight.Text);
                int widthTb = Convert.ToInt32(tbWidth.Text);

                int offsetY = this.Height - panelTransparent.Height;
                int offsetX = this.Width - panelTransparent.Width;

                heightTb += offsetY;
                widthTb += offsetX;

                #region Checks if size is smaller than screen size

                if (heightTb > _sizeScreen.Y)
                {
                    heightTb = _sizeScreen.Y;
                    tbHeight.Text = _sizeScreen.Y.ToString();
                }

                if (widthTb > _sizeScreen.X)
                {
                    widthTb = _sizeScreen.X;
                    tbWidth.Text = _sizeScreen.X.ToString();
                }

                #endregion

                this.Size = new Size(widthTb, heightTb);

                _screenSizeEdit = false;
            }
        }