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- Description
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
Flags
The Flags parameter defines flags indicating the enumeration direction.
The described effect applies when the flag is set.
-
DDENUMOVERLAYZ_BACKTOFRONT
Enumerate overlay surfaces from back to front.
DDENUMOVERLAYZ_FRONTTOBACK
Enumerate overlay surfaces from front to back.
The Context parameter references an application defined object passed to the TDx_DrawSurface::EnumSurfacesCallback() event for each overlay surface enumerated.
- See Also
- Top
TDx_Draw_Library v2.00 Component Reference
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[ TDx_DrawSurface::EnumOverlayZOrders() ] [ next: Flip() ] [ prev: EnumAttachedSurfaces() ] public:
virtual bool __fastcall EnumOverlayZOrders( dword pFlags, void* pContext );
TDX_DRAWSURFACE::ENUMOVERLAYZORDERS()
[ component method ]
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