Example: sapgui_grid_deselect_column
In this example, two columns are selected, then one is deselected with sapgui_grid_deselect_column.
char *gridID = "usr/cntlBCALVC_TOOLBAR_D100_C1/shellcont/shell";
....
sapgui_grid_select_columns("Select two columns", gridID, "CONNID", "CITYFROM", LAST );
sapgui_grid_deselect_column("Deselect CONNID", gridID, "CONNID", LAST );