Can display but not write Greek chars in SynEdit!

[Anonymous]

While playing around with the SynEdit control I found out a rather bizare fact :
 If you copy - paste an extract written in Greek in a Synedit control it displays everything perfectly. For example, in a machine running Windows XP Greek,  using "Courier New" as the control's font you  can copy the following :

Λειτουργία    : Κατασκευαστής Αντιγραφής

(Which means :  "Functionality : Copy Constructor")

(You must turn your browsers encoding to GREEK  ISO-8859-7 to be able to see it correctly.)

and then paste it in the SynEdit control and it will be displayed correctly!!!

I would mostly appreciate it if someone could tell me how I can write Greek characters in a SynEdit control as I am developing a C++ IDE and I really need that feature.
Thank you for your time.