IDXTransform Interface

IID_IDXTransform

{30A5FB78-E11F-11D1-9064-00C04FD9189D}

The IDXTransform interface is used to set up a transform and cause it to produce its graphics output. This interface is exposed on all Microsoft DirectX Transform objects created with the IDXTransformFactory::CreateTransform method.

Remarks

MSDN documentation: IDXTransform.
 

Methods in VTable order

IUnknown Methods

Description

QueryInterface

Returns pointers to supported interfaces.

AddRef

Increments reference count.

Release

Decrements reference count.

IDXBaseObject Members

Description

GetGenerationId

Retrieves the current generation ID for the object.

IncrementGenerationId

Manually increments the object generation ID.

GetObjectSize

Retrieves the size, in bytes, of the data object (for example, a surface or buffer).

IDXTransform Members

Description

SetUp

Defines the input and output data objects used in the transform.

Execute

Executes the transform operation given the specified portion bounds and places the result in the destination data object.

MapBoundsIn2Out

Maps the input coordinate space to the output coordinate space.

MapBoundsOut2In

Maps the output coordinate space to the input coordinate space.

SetMiscFlags

Sets transform flags that specify how to generate the output.

GetMiscFLags

Retrieves flags that describe the behavior of the transform.

GetInOutInfo

Retrieves input or output information about the specified data object, and an optional pointer to it.

SetQuality

Sets the quality level used to render the transform result.

GetQuality

Retrieves the quality level used to render the transform result.

SetUp

FUNCTION IDXTransform_Setup ( _
  BYVAL pthis AS DWORD PTR _
, BYVAL punkInputs AS DWORD PTR _
, BYVAL ulNumInputs AS DWORD _
, BYVAL punkOutputs AS DWORD PTR _
, BYVAL ulNumOutputs AS DWORD _
, BYVAL dwFlags AS DWORD _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[6] USING IDXTransform_Setup (pthis, punkInputs, ulNumInputs, punkOutputs, ulNumOutputs, dwFlags) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

Execute

FUNCTION IDXTransform_Execute ( _
  BYVAL pthis AS DWORD PTR _
, BYREF pRequestID AS GUID _
, BYREF pClipBnds AS DXBNDS _
, BYREF pPlacement AS DXVEC _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[7] USING IDXTransform_Execute (pthis, pRequestID, pClipBnds, pPlacement) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION

MapBoundsIn2Out

FUNCTION IDXTransform_MapBoundsIn2Out ( _
  BYVAL pthis AS DWORD PTR _
, BYREF pInBounds AS DXBNDS _
, BYVAL ulNumInBnds AS DWORD _
, BYVAL ulOutIndex AS DWORD _
, BYREF pOutBounds AS DXBNDS _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[8] USING IDXTransform_MapBoundsIn2Out (pthis, pInBounds, ulNumInBnds, ulOutIndex, pOutBounds) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION

MapBoundsOut2In

FUNCTION IDXTransform_MapBoundsOut2In ( _
  BYVAL pthis AS DWORD PTR _
, BYVAL ulOutIndex AS DWORD _
, BYREF pOutBounds AS DXBNDS _
, BYVAL ulInIndex AS DWORD _
, BYREF pInBounds AS DXBNDS _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[9] USING IDXTransform_MapBoundsOut2In (pthis, ulOutIndex, pOutBounds, ulInIndex, pInBounds) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

SetMiscFlags

FUNCTION IDXTransform_SetMiscFlags ( _
  BYVAL pthis AS DWORD PTR _
, BYVAL dwMiscFlags AS DWORD _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[10] USING IDXTransform_SetMiscFlags (pthis, dwMiscFlags) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

GetMiscFlags

FUNCTION IDXTransform_GetMiscFlags ( _
  BYVAL pthis AS DWORD PTR _
, BYREF pdwMiscFlags AS DWORD _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[11] USING IDXTransform_GetMiscFlags (pthis, pdwMiscFlags) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

GetInOutInfo

FUNCTION IDXTransform_GetInOutInfo ( _
  BYVAL pthis AS DWORD PTR _
, BYVAL bIsOutput AS LONG _
, BYVAL ulIndex AS DWORD _
, BYREF pdwFlags AS DWORD _
, BYREF pIDs AS GUID _
, BYREF pcIDs AS DWORD _
, BYREF ppUnkCurrentObject AS DWORD _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[12] USING IDXTransform_GetInOutInfo (pthis, bIsOutput, ulIndex, pdwFlags, pIDs, pcIDs, ppUnkCurrentObject) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

SetQuality

FUNCTION IDXTransform_SetQuality ( _
  BYVAL pthis AS DWORD PTR _
, BYVAL fQuality AS SINGLE _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[13] USING IDXTransform_SetQuality (pthis, fQuality) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION
 

SetQuality

FUNCTION IDXTransform_GetQuality ( _
  BYVAL pthis AS DWORD PTR _
, BYREF fQuality AS SINGLE _
  ) AS LONG

  LOCAL HRESULT AS LONG
  CALL DWORD @@pthis[14] USING IDXTransform_GetQuality(pthis, fQuality) TO HRESULT
  FUNCTION = HRESULT

END FUNCTION