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IDirectDraw7::DuplicateSurface method (ddraw.h)

  • Article

Duplicates a DirectDrawSurface object.

Syntax

HRESULT DuplicateSurface(
  [in]  LPDIRECTDRAWSURFACE7 unnamedParam1,
  [out] LPDIRECTDRAWSURFACE7 *unnamedParam2
);

Parameters

[in] unnamedParam1

Address of the IDirectDrawSurface7 interface for the surface to be duplicated.

[out] unnamedParam2

Address of a variable to contain an IDirectDrawSurface7 interface pointer for the newly duplicated DirectDrawSurface object.

Return value

If the method succeeds, the return value is DD_OK.

If it fails, the method can return one of the following error values:

  • DDERR_CANTDUPLICATE
  • DDERR_INVALIDOBJECT
  • DDERR_INVALIDPARAMS
  • DDERR_OUTOFMEMORY
  • DDERR_SURFACELOST

Remarks

DuplicateSurface creates a new DirectDrawSurface object that points to the same surface memory as an existing DirectDrawSurface object. This duplicate can be used just like the original object. The surface memory is released after the last object referring to it is released. A primary surface, 3-D surface, or implicitly created surface cannot be duplicated.

Requirements

Requirement Value
Target Platform Windows
Header ddraw.h
Library Ddraw.lib
DLL Ddraw.dll

See also

IDirectDraw7