LPDDHAL_WAITFORVERTICALBLANK (Windows CE 5.0)

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This callback function helps the application synchronize itself with the vertical blanking interval (VBI).

typedef DWORD (* LPDDHAL_WAITFORVERTICALBLANK)(  LPDDHAL_WAITFORVERTICALBLANKDATA lpwfvbd);

Parameters

• lpwfvbd
  [in, out] Pointer to a DDHAL_WAITFORVERTICALBLANKDATA structure that contains the vertical blank information.

Return Values

Returns one of the following values:

• DDHAL_DRIVER_HANDLED
• DDHAL_DRIVER_NOTHANDLED

Remarks

An example implementation of this callback function, WaitForVerticalBlank32, can be found in the IGS sample driver source code.

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

DirectDraw Display Driver Callback Functions | DDHAL_WAITFORVERTICALBLANKDATA | DDHAL_DRIVER_HANDLED | DDHAL_DRIVER_NOTHANDLED

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