Retrieves the current text size group for the tool shell. Tool items must not call this function directly, but rely on gtk_tool_item_get_text_size_group() instead. Since 2.20
the current text size group of shell. [transfer none]
See Implementation
Retrieves the current text size group for the tool shell. Tool items must not call this function directly, but rely on gtk_tool_item_get_text_size_group() instead. Since 2.20