VerifyFile Method
Verifies an enveloped or enveloping signature contained in a file.
Syntax
int VerifyFile(const QString& qsSourceFile, const QString& qsDestFile);
Remarks
Use this method to verify an enveloped or enveloping signature and extract the original signed message to another file.
The validation result is stored in SignatureValidationResult property.
Specify the public verification key in Key property before commencing the validation.
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.)