CGapiDisplay

Initialization
OpenDisplay
CreateOffscreenDisplay
CloseDisplay
SetDisplayMode
GetDisplayMode
GetBackBuffer
RenderSystemFont
GetSystemFont
GetSystemFontBorder
DrawDisplayInformation
GetDirectDrawInterface
GetDirectDrawPrimarySurface

HW Operations
GetMonitorFrequency
GetAvailableVidMem
GetHWStatus
SurfacesAreLost
RestoreAllVideoSurfaces

Each frame
Flip
PresentQuarterSize

Helpers
SuspendDisplay
ResumeDisplay
DeviceToLogical