St.ThemeNode.get_length

### Method

# St ThemeNodeget_length

#### Declaration [src]

    gdouble
    st_theme_node_get_length (
      StThemeNode* node,
      const char* property_name
    )

#### Description [src]

Generically looks up a property containing a single length value. When specific getters (like st_theme_node_get_border_width()) exist, they should be used instead. They are cached, so more efficient, and have handling for shortcut properties and other details of CSS.

Unlike `st_theme_node_get_color()` and st_theme_node_get_double(), this does not print a warning if the property is not found; it just returns 0.

See also st_theme_node_lookup_length(), which provides more options. The returned value is in physical pixels, as opposed to logical pixels.

#### Parameters

`property_name`

  Type: `const char*`

  The name of the length property.

  The data is owned by the caller of the method.
  The value is a NUL terminated UTF-8 string.

#### Return value

Type: `gdouble`

The length, in pixels, or 0 if the property was not found.