TreeModelFilterModifyFunc

A function which calculates display values from raw values in the model. It must fill @value with the display value for the column @column in the row indicated by @iter.

Since this function is called for each data access, it’s not a particularly efficient operation.

• param model the GtkTreeModelFilter

• param iter a GtkTreeIter pointing to the row whose display values are determined

• param value A GValue which is already initialized for with the correct type for the column @column.

• param column the column whose display value is determined