Gdk-4.0.gir

    <function name="property_change"
              c:identifier="gdk_property_change"
              introspectable="0">
      <doc xml:space="preserve">Changes the contents of a property on a window.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="window" transfer-ownership="none">
          <doc xml:space="preserve">a #GdkWindow</doc>
          <type name="Window" c:type="GdkWindow*"/>
        </parameter>
        <parameter name="property" transfer-ownership="none">
          <doc xml:space="preserve">the property to change</doc>
          <type name="Atom" c:type="GdkAtom"/>
        </parameter>
        <parameter name="type" transfer-ownership="none">
          <doc xml:space="preserve">the new type for the property. If @mode is
  %GDK_PROP_MODE_PREPEND or %GDK_PROP_MODE_APPEND, then this
  must match the existing type or an error will occur.</doc>
          <type name="Atom" c:type="GdkAtom"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <doc xml:space="preserve">the new format for the property. If @mode is
  %GDK_PROP_MODE_PREPEND or %GDK_PROP_MODE_APPEND, then this
  must match the existing format or an error will occur.</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter name="mode" transfer-ownership="none">
          <doc xml:space="preserve">a value describing how the new data is to be combined
  with the current data.</doc>
          <type name="PropMode" c:type="GdkPropMode"/>
        </parameter>
        <parameter name="data" transfer-ownership="none">
          <doc xml:space="preserve">the data (a `guchar *`
  `gushort *`, or `gulong *`,
  depending on @format), cast to a `guchar *`.</doc>
          <type name="guint8" c:type="const guchar*"/>
        </parameter>
        <parameter name="nelements" transfer-ownership="none">
          <doc xml:space="preserve">the number of elements of size determined by the format,
  contained in @data.</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
      </parameters>
    </function>