BUG: When signature differs from parent class declaration ("double*" vs. "double e[2]") then the Visual Studio 6 compiler does not call the proper implementation. If the signatures match exactly, then it does. Workaround this compiler bug by making all the *WidgetInteraction methods take double arrays of 2 elements rather than double*... Always be consistent. This commit should fix the failing slider widget tests on the VS6 dashboards.