ExportPublicKey Method
Exports the public key of the current key.
procedure ExportPublicKey(FileName: String; useAsciiArmor: Boolean);
Remarks
This method exports the public key of the currently selected Key. The FileName parameter specifies the file on disk to which the public key will be written. The UseAsciiArmor parameter determines whether or not ASCII armoring is used when writing the key to disk.
Note: When UseAsciiArmor is set to True the VersionHeader setting may also be set to specify your own header value.