AcquireWindowContentTransform

Inside Macintosh: OpenDoc Class Reference /: Part 1 - Classes and Methods / ODFacet

AcquireWindowContentTransform
The AcquireWindowContentTransform method calculates and returns a reference to a transform object that represents the window-content transform of this facet.
ODTransform AcquireWindowContentTransform (
                                 in ODCanvas biasCanvas);
biasCanvas
kODNULL if the geometry is in platform-normal coordinates, otherwise a reference to the canvas object to whose coordinate space the geometry is biased.
return value
A reference to a transform object that represents the window-content transform.

DISCUSSION
The window-content transform describes the content coordinate space of this facet on its window. The window-content transform is calculated by concatenating the internal transform of this facet's frame with this facet's external transform and the internal and external transforms of all containing facets displayed on this facet's window canvas.
This method increments the reference count of the returned transform object. When you have finished using that transform object, you should call its Release method.

SEE ALSO
The ODFacet::AcquireContentTransform method (page 226).
The ODFacet::AcquireWindowFrameTransform method (page 231).
"Canvas Coordinates and Window Coordinates" on page 138 in OpenDoc Programmer's Guide.
"Drawing Directly to the Window" on page 166 in OpenDoc Programmer's Guide.