Windows on-screen keyboard application development

Write a Windows application with the following objectives: Provide a highly visible, customizable mini on-screen keyboard - with ONLY: Controller keys (adjustable size, color, and placement). Purpose:... (Budget: £250 - £750 GBP, Jobs: Accessibility, C# Programming, Desktop Application, Software Development, Software Engineering, UI / User Interface, User Interface / IA, Windows API, WPF)