TDx_Draw::CreateClipper() Reference

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TDx_Draw_Library v1.90 Component Reference

Component: TDX_DRAW::CREATECLIPPER()

[ TDx_Draw ] [ next: CreatePalette() ] [ prev: Create() ]

public:
virtual bool __fastcall CreateClipper( TDx_DrawClipper* pClipper );

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DESCRIPTION

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The TDx_Draw::CreateClipper method will create a clipper that can be attached to a surface and used in TDx_DrawSurface::Blt() and TDx_DrawSurface::UpdateOverlay() operations.

If you must use a clipper that is independent of a TDx_Draw component, use the DirectDrawCreateClipper function and pass in the 'Internal_LPDIRECTDRAWCLIPPER_Ptr' property of a TDx_DrawClipper component that has been placed on your form.

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

PARAMETERS

Top See Also

Clipper
The Clipper parameter will reference the newly created clipper if the method returns successfully.