GtkSource.Region.subtract_region

### Method

# GtkSource Regionsubtract_region

#### Declaration [src]

    void
    gtk_source_region_subtract_region (
      GtkSourceRegion* region,
      GtkSourceRegion* region_to_subtract
    )

#### Description [src]

Subtracts `region_to_subtract` from `region`.

`region_to_subtract` is not modified.

#### Parameters

`region_to_subtract` | `GtkSourceRegion`
| The `GtkSourceRegion` to subtract from `region`, or `NULL`.
| The argument can be `NULL`.
| The data is owned by the caller of the function.