set_header

Description:

public void set_header (DBusMessageHeaderField header_field, Variant? value)

Sets a header field on this.

If value is floating, this assumes ownership of value.

this	A DBusMessage.
header_field	A 8-bit unsigned integer (typically a value from the DBusMessageHeaderField enumeration)
value	A Variant to set the header field or null to clear the header field.