UpdateOverlay (Windows CE 5.0)

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This callback function repositions or modifies the visual attributes of an overlay surface.

DWORD UpdateOverlay(LPDDHAL_UPDATEOVERLAYDATA puod);

Parameters

• puod
  [in, out] Pointer to a DDHAL_UPDATEOVERLAYDATA structure that the driver uses to update the overlay surface.

Return Values

Returns one of the following values:

• DDHAL_DRIVER_HANDLED
• DDHAL_DRIVER_NOTHANDLED

Remarks

DirectDraw passes color-key information to the UpdateOverlay callback function only if DDCAPS_OVERLAYCANTCLIP in DDCAPS.dwCaps is TRUE.

Requirements

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Ddrawi.h.
Link Library: Developer implemented.

See Also

DirectDrawSurface Callback Functions | DDCAPS | DDHAL_UPDATEOVERLAYDATA | DDHAL_DRIVER_HANDLED | DDHAL_DRIVER_NOTHANDLED

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