The component SIZEABLEPANE is a container that can be sized by the user vertically.

The sizer is by default positioned at the bottom side. But: by using attributes SIZERATLEFTORTOPSIDE and/or attribute SIZERATRIGHTORBOTTOMSIDE you can explicitly control the number and position of sizers.

The component is both use-able for "big" container areas (similar to one part of a SPLITPANE component) and for "small" sizing areas (e.g. it is internally used wihtin the column header of FIXGRID grid).