MetroFramework.Controls.MetroTextBox.PromptedTextBox.WndProc C# (CSharp) Method

            protected override void WndProc(ref Message m)
            {
                base.WndProc(ref m);
                if (((m.Msg == WM_PAINT) || (m.Msg == OCM_COMMAND)) && (drawPrompt && !GetStyle(ControlStyles.UserPaint)))
                {
                    DrawTextPrompt();
                }
            }