IXpsOMTileBrush::SetTransformLookup method

發行項
06/01/2017

Sets the lookup key name of a shared matrix transform that will be used as the transform for this brush. The shared matrix transform that is referenced by the lookup key is stored in the resource dictionary.

Syntax

HRESULT SetTransformLookup(
  [in] LPCWSTR key
);

Parameters

key [in]
A string variable that contains the lookup key name of a shared matrix transform in the resource dictionary. If a lookup key has already been set, a NULL pointer will clear it.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the table that follows. For information about XPS document API return values that are not listed in this table, see XPS Document Errors.

Return code	Description
S_OK	The method succeeded.
XPS_E_INVALID_RESOURCE_KEY	According to the XML Paper Specification, the value of lookup is not a valid lookup key string.
XPS_E_INVALID_LOOKUP_TYPE	The lookup key name in key references an object that is not a geometry.
XPS_E_LOOKUP_NOT_FOUND	No object could be found with a key name that matched the value passed in key.

Remarks

The transform is applied before the brush image is rendered in the path, stroke, or glyph that is using the tile brush. The tile brush has only one transform, which can be local or remote.

After you call SetTransformLookup, the local transform is released and GetTransformLocal returns a NULL pointer in the transform parameter. The table that follows explains the relationship between the local and lookup values of this property.

Most recent method called	Object that is returned in transform by GetTransform	Object that is returned in transform by GetTransformLocal	String that is returned in key by GetTransformLookup
SetTransformLocal	The transform that is set by SetTransformLocal.	The transform that is set by SetTransformLocal.	NULL pointer.
SetTransformLookup (this method)	The transform which is retrieved—using a lookup key that matches the key that is set by SetTransformLookup— from the resource directory.	NULL pointer.	The lookup key that is set by SetTransformLookup.
Neither SetTransformLocal nor SetTransformLookup has been called yet.	NULL pointer.	NULL pointer.	NULL pointer.

Requirements

Minimum supported client	Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista [desktop apps \| Windows Store apps]
Minimum supported server	Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008 [desktop apps \| Windows Store apps]
Header	Xpsobjectmodel.h
IDL	XpsObjectModel.idl

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