c_gtk_tree_view_column_cell_get_size

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GtkTreeViewColumn* treeColumn, GdkRectangle* cellArea, int* xOffset, int* yOffset, int* width, int* height) c_gtk_tree_view_column_cell_get_size;

Meta