SAM_CornerClick is sent to a table window, and a table window column when you click on the title of a row header. The row header is a non-editable column on the left side of a table window. To retrieve the window handle of the column in wParam use SalNumberToWindowHandle. Message Variables hWndForm Window handle of the table window. hWndItem Window handle of the column. wParam Numeric value of the window handle of the column. IParam The context row of the table window. Example Table Window: tbl1 ... Message Actions On SAM_CornerClick Set nContextRowLength = SalNumberToStr( lParam, 0, sContextRow ) Call SalMessageBox( 'You clicked the row header title Context row: ' || sContextRow ,'Info' , MB_Ok )

public const int SAM_CornerClick