Description: Appends a colored message to the global screen log.
Calling convention: CIP_AddScreenLog("MessageText": String, [MessageColor: Integer])
Parameters:
MessageText: text to append; NULL returns NULL without logging.
MessageColor: optional TColor integer; omitted or NULL uses black.
Returns: NULL for NULL MessageText; otherwise undefined because no success value is assigned.
Availability: Default; requires the global application form.
Example:
CIP_AddScreenLog("Import completed", 32768);