ThemeExpressionInfo() function - MapBasic - 2023

Purpose

Returns information about a specific expression for a thematic layer in a map. You can call this function from the MapBasic window in MapInfo Pro.

Syntax

ThemeExpressionInfo ( map_window_id, thematic_layer_id, theme_expression_id,  attribute )

map_window_id is a Map window identifier.

thematic_layer_id is a SmallInt that identifies a thematic layer in a Map.

theme_expression_id is an Integer that identifies an expression id.

attribute is a SmallInt code indicating the type of information to return; see table below.

Return Value

Depends on the attribute parameter.

Description

The attribute parameter can be any value from the table below.

See Also:

ThemeInfo() function

ThemeItemInfo() function