ImportFromFile Method
Loads key from file.
Syntax
int ImportFromFile(const QString& qsPath, const QString& qsPassword);
Remarks
Use this method to read a key stored in a file. Path specifies the full path to the file, Password is a password to decrypt the private key.
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.)