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the TDx_Library
the TDx9_Library
- Description
The TDx_DrawSurface::UpdateOverlayZOrder method will define the z-order for an overlay.
If the method call fails, the OnError event will be triggered with one of the following values:
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS
DDERR_NOTAOVERLAYSURFACE
- Parameters
Flags
The Flags parameter defines flags indicating the z-order position of this overlay, relative to the reference overlay specified in the Reference parameter of this method.
The described effect applies when the flag is set.
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DDOVERZ_INSERTINBACKOF
The overlay is to be positioned directly behind the reference overlay.
DDOVERZ_INSERTINFRONTOF
The overlay is to be positioned directly in front of the reference overlay.
DDOVERZ_MOVEBACKWARD
The overlay is to be moved one position backwards relative to its current position.
DDOVERZ_MOVEFORWARD
The overlay is to be moved one position forwards relative to its current position.
DDOVERZ_SENDTOBACK
The overlay is to be the backmost overlay.
DDOVERZ_SENDTOFRONT
The overlay is to be the foremost overlay.
The Reference parameter references the surface to be used as a relative position.
This parameter need only be set when using DDOVERZ_INSERTINBACKOF or DDOVERZ_INSERTINFRONTOF.
- See Also
- Top
TDx_Draw_Library v1.90 Component Reference
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[ TDx_DrawSurface::UpdateOverlayZOrder() ] [ prev: UpdateOverlay() ] public:
virtual bool __fastcall UpdateOverlayZOrder( dword pFlags, TDx_DrawSurface* pReference );
TDX_DRAWSURFACE::UPDATEOVERLAYZORDER()
[ component method ]
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