See also:
https://community.bistudio.com/wiki/lnbSetTooltip
While it is possible to set tooltip on any column, only tooltip from the primary column 0 is displayed for the whole row under cursor, which makes adding tooltips to columns other than 0 impractical.
TEST_Display = findDisplay 46 createDisplay "RscDisplayEmpty"; TEST_ListNBox = TEST_Display ctrlCreate ["RscListNBox", -1]; TEST_ListNBox lnbAddRow ["COL1", "COL2"]; TEST_ListNBox lnbSetTooltip [[0,0],"1"]; TEST_ListNBox lnbSetTooltip [[0,1],"2"];
Notice both are showing "1"
Eh, is that normal that your listbox, has actually 3 columns? the right one just has empty text...