user: How do I use Region(bpy_struct) in Blender? Include parameters, examples, warnings and best practices.

assistant: # Region(bpy_struct)

base class — [`bpy_struct`](bpy.types.bpy_struct.html#bpy.types.bpy_struct "bpy.types.bpy_struct")

*class* bpy.types.Region(*bpy_struct*)
:   Region in a subdivided screen area

    active_panel_category
    :   The current active panel category, may be Null if the region does not support this feature (NOTE: these categories are generated at runtime, so list may be empty at initialization, before any drawing took place)

        - `UNSUPPORTED`
          Not Supported – This region does not support panel categories.

        Type:
        :   enum in [`'UNSUPPORTED'`], default `'UNSUPPORTED'`

    alignment
    :   Alignment of the region within the area

        - `NONE`
          None – Don’t use any fixed alignment, fill available space.
        - `TOP`
          Top.
        - `BOTTOM`
          Bottom.
        - `LEFT`
          Left.
        - `RIGHT`
          Right.
        - `HORIZONTAL_SPLIT`
          Horizontal Split.
        - `VERTICAL_SPLIT`
          Vertical Split.
        - `FLOAT`
          Float – Region floats on screen, does not use any fixed alignment.
        - `QUAD_SPLIT`
          Quad Split – Region is split horizontally and vertically.

        Type:
        :   enum in [`'NONE'`, `'TOP'`, `'BOTTOM'`, `'LEFT'`, `'RIGHT'`, `'HORIZONTAL_SPLIT'`, `'VERTICAL_SPLIT'`, `'FLOAT'`, `'QUAD_SPLIT'`], default `'NONE'`, (readonly)

    data
    :   Region specific data (the type depends on the region type)

        Type:
        :   [`AnyType`](bpy.types.AnyType.html#bpy.types.AnyType "bpy.types.AnyType"), (readonly)

    height
    :   Region height

        Type:
        :   int in [0, 32767], default 0, (readonly)

    type
    :   Type of this region

        Type:
        :   enum in [Region Type Items](bpy_types_enum_items/region_type_items.html#rna-enum-region-type-items), default `'WINDOW'`, (readonly)

    view2d
    :   2D view of the region

        Type:
        :   [`View2D`](bpy.types.View2D.html#bpy.types.View2D "bpy.types.View2D"), (readonly, never None)

    width
    :   Region width

        Type:
        :   int in [0, 32767], default 0, (readonly)

    x
    :   The window relative vertical location of the region

        Type:
        :   int in [-inf, inf], default 0, (readonly)

    y
    :   The window relative horizontal location of the region

        Type:
        :   int in [-inf, inf], default 0, (readonly)

    tag_redraw()
    :   tag_redraw

    tag_refresh_ui()
    :   tag_refresh_ui

    *classmethod* bl_rna_get_subclass(*id*, *default=None*, */*)
    :   Parameters:
        :   **id** (*str*) – The RNA type identifier.

        Returns:
        :   The RNA type or default when not found.

        Return type:
        :   [`bpy.types.Struct`](bpy.types.Struct.html#bpy.types.Struct "bpy.types.Struct") subclass

    *classmethod* bl_rna_get_subclass_py(*id*, *default=None*, */*)
    :   Parameters:
        :   **id** (*str*) – The RNA type identifier.

        Returns:
        :   The class or default when not found.

        Return type:
        :   [type](#bpy.types.Region.type "bpy.types.Region.type")