IXpsOMObjectFactory::CreateMatrixTransform method

Creates an IXpsOMMatrixTransform interface that specifies an affine matrix transform.

Syntax

HRESULT CreateMatrixTransform(
  [in]          const XPS_MATRIX            *matrix,
  [out, retval]       IXpsOMMatrixTransform **transform
);

Parameters

• matrix [in]
  The initial matrix to be assigned to the transform.

• transform [out, retval]
  A pointer to the new IXpsOMMatrixTransform interface.

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.

Remarks

The transform specified by this matrix can be applied to the transform property of other XPS objects.

The code example that follows illustrates how this method is used to create a new interface.

IXpsOMMatrixTransform    *newInterface;
// The following value is defined outside of 
// this example.
XPS_MATRIX        newMatrix;

// Note the implicit requirement that CoInitializeEx 
//  has previously been called from this thread.

hr = CoCreateInstance(
    __uuidof(XpsOMObjectFactory),
    NULL,
    CLSCTX_INPROC_SERVER,
    _uuidof(IXpsOMObjectFactory),
    reinterpret_cast<LPVOID*>(&xpsFactory)
    );

if (SUCCEEDED(hr))
{
    hr = xpsFactory->CreateMatrixTransform (
        &newMatrix,
        &newInterface);

    if (SUCCEEDED(hr))
    {
        // use newInterface

        newInterface->Release();
    }
    xpsFactory->Release();
}
else
{
    // evaluate HRESULT error returned in hr
}

Requirements

See also

IXpsOMObjectFactory

IXpsOMMatrixTransform

XPS_MATRIX

XPS Document Errors

XML Paper Specification