Extracts date and time parts from value, and sets timestamp's contents
value
timestamp
Accepted date format is "YYYY-MM-DD HH:MM:SS[.ms][TZ]" where TZ is +hour or -hour
a pointer to a GdaTimeStamp structure which will be filled
GdaTimeStamp
a string
true if value has been sucessfuly parsed as a valid timestamp (see valid)
true