TerSetHdrRow

Set the header row for a table.

bool TerSetHdrRow( CellId, set, repaint)

`int CellId;`	A cell id for a cell in the row. Set to 0 to assume the current table row.
`bool set;`	Set to true to turn the current table row (or selected rows) into a header row. Set to false to remove this attribute.
`bool repaint;`	Set to true to repaint the screen after this operation

Return Value: This function returns true when successful.