IXpsOMVisual::SetOpacityMaskBrushLookup method
Sets the lookup key name of a shared opacity mask brush in a resource dictionary.
Syntax
HRESULT SetOpacityMaskBrushLookup(
[in] LPCWSTR key
);
Parameters
- key [in]
The lookup key name of the opacity mask brush in the dictionary. A NULL pointer clears the previously assigned key name.
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
After you call SetOpacityMaskBrushLookup, the local opacity mask brush is released and GetOpacityMaskBrushLocal returns a NULL pointer in the opacityMaskBrush 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 opacityMaskBrush by GetOpacityMaskBrush | Object that is returned in opacityMaskBrush by GetOpacityMaskBrushLocal | String that is returned in key by GetOpacityMaskBrushLookup |
|---|---|---|---|
The local opacity mask brush that is set by SetOpacityMaskBrushLocal. |
The local opacity mask brush that is set by SetOpacityMaskBrushLocal. |
NULL pointer. |
|
SetOpacityMaskBrushLookup (this method) |
The shared opacity mask brush that gets retrieved—with a lookup key that matches the key that is set by SetOpacityMaskBrushLookup—from the resource directory. |
NULL pointer. |
The lookup key that is set by SetOpacityMaskBrushLookup. |
Neither SetOpacityMaskBrushLocal nor SetOpacityMaskBrushLookup 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 |