EncryptFile Method
Encrypts a file.
Syntax
int EncryptFile(const QString& qsSourceFile, const QString& qsDestFile);
Remarks
Use this method to encrypt a file and save the protected message to another file.
Specify encryption keys in EncryptingKeys property, and/or encryption password via Passphrase property.
Error Handling
This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)