Layout being called when the mouse hovers over a button.

[Nick Munday]

For some reason, hovering the mouse over a button on a header causes multiple layout calls. Running 2.51 using Office 2007 Blue pallete.

The only reason I noticed was that the layout engine I wrote had a small defect which caused the panel to resize itself 1 pixel smaller on each layout. Hovering the mouse over the button caused the panel to start shrinking pixel by pixel.

[Phil Wright]

Moving the mouse over the button will cause multiple layout events to occur. As the content of the button (the image, text and extra text) is drawn separately from the background and border it means moving the mouse can cause multiple layouts to occurs. This should not be a problem unless you have a bug in your layout code!