Strategies
In practical terms, there are two strategies for the adoption of DirectX – Wholesale or piecemeal.
Piecemeal is the less invasive strategy. This allows individual forms or panels to start using DirectX related features e.g. new controls or animations, without affecting the remainder of the application. It is worthy of note however that this will enforce a TrueType font to be used, and it may therefore be necessary to change the font for the remainder of the application to ensure consistency.
The wholesale approach simply means that the runtime is switched to use DirectX and that as a result the entire application will render using DirectX.