Inside Macintosh: OpenDoc Class Reference /

Part 1 - Classes and Methods / ODCanvas

Invalidate

The Invalidate method adds the specified area to the update shape for this canvas, ensuring that the specified area of this canvas is updated.

void Invalidate (in ODShape shape);

shape

A reference to the shape object defining the area to add to the update shape for this canvas.

DISCUSSION

OpenDoc calls this method internally to mark an area of a canvas that needs updating. Your part typically calls its facet's Invalidate method instead of this method because that method transforms and clips the shape from the coordinate space of the facet to the coordinate space of its canvas.

SEE ALSO

The ODCanvas::Validate method (page 82).
The ODFacet::Invalidate method (page 250).
The ODFrame::Invalidate method (page 325).

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