TDx_DrawSurface::ChangeUniquenessValue() Reference

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TDx_Draw_Library v1.90 Component Reference

Component: TDX_DRAWSURFACE::CHANGEUNIQUENESSVALUE()

[ TDx_DrawSurface ] [ next: Create() ] [ prev: BltFast() ]

public:
virtual bool __fastcall ChangeUniquenessValue();

Description
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DESCRIPTION

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The TDx_DrawSurface::ChangeUniquenessValue method will manually update the surface's uniqueness value.

The uniqueness value is usually updated whenever the surface contents change.

If the method call fails, the OnError event will be triggered with one of the following values:
DDERR_EXCEPTION
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS