### Method

# Gtk Widget measure

#### Declaration [src]

    void
    gtk_widget_measure (
      GtkWidget* widget,
      GtkOrientation orientation,
      int for_size,
      int* minimum,
      int* natural,
      int* minimum_baseline,
      int* natural_baseline
    )

#### Description [src]

Measures `widget` in the orientation `orientation` and for the given `for_size`.

As an example, if `orientation` is `GTK_ORIENTATION_HORIZONTAL` and `for_size` is 300, this functions will compute the minimum and natural width of `widget` if it is allocated at a height of 300 pixels.

See GtkWidget’s geometry management section for a more details on implementing `GtkWidgetClass.measure()`.

#### Parameters

`orientation`

  Type: `GtkOrientation`

  The orientation to measure.

`for_size`

  Type: `int`

  Size for the opposite of `orientation`, i.e. if `orientation` is `GTK_ORIENTATION_HORIZONTAL`, this is the height the widget should be measured with. The `GTK_ORIENTATION_VERTICAL` case is analogous. This way, both height-for-width and width-for-height requests can be implemented. If no size is known, -1 can be passed.

`minimum`

  Type: `int*`

  Location to store the minimum size.

  The argument will be set by the function.
  The argument can be `NULL`.

`natural`

  Type: `int*`

  Location to store the natural size.

  The argument will be set by the function.
  The argument can be `NULL`.

`minimum_baseline`

  Type: `int*`

  Location to store the baseline position for the minimum size, or -1 to report no baseline.

  The argument will be set by the function.
  The argument can be `NULL`.

`natural_baseline`

  Type: `int*`

  Location to store the baseline position for the natural size, or -1 to report no baseline.

  The argument will be set by the function.
  The argument can be `NULL`.