Changes the contents of a property on a window.
window |
a Window |
property |
the property to change |
type |
the new type for the property. If |
format |
the new format for the property. If |
mode |
a value describing how the new data is to be combined with the current data. |
data |
the data (a `guchar *` `gushort *`, or `gulong *`, depending on |
nelements |
the number of elements of size determined by the format, contained in |