TDx_DrawSurface::EnumOverlayZOrders() Reference

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TDx_Draw_Library v1.90 Component Reference

Component: TDX_DRAWSURFACE::ENUMOVERLAYZORDERS()

[ TDx_DrawSurface ] [ next: Flip() ] [ prev: EnumAttachedSurfaces() ]

public:
virtual bool __fastcall EnumOverlayZOrders( dword pFlags, void* pContext );

Description
Parameters
See Also

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DESCRIPTION

Top Parameters See Also

The TDx_DrawSurface::EnumOverlayZOrders method will enumerate overlay surfaces.

Instead of writing a manual callback function, just place your code in the TDx_DrawSurface::OnEnumOverlayZOrders() event.

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

PARAMETERS

Top See Also

Flags
The Flags parameter defines flags indicating the enumeration direction.
The described effect applies when the flag is set.

DDENUMOVERLAYZ_BACKTOFRONT

DDENUMOVERLAYZ_FRONTTOBACK
Enumerate overlay surfaces from front to back.

Context
The Context parameter references an application defined object passed to the TDx_DrawSurface::EnumSurfacesCallback() event for each overlay surface enumerated.