Imports ComPDFKit.NativeMethod Imports System Imports System.Xml Imports ComPDFKit.NativeMethod.CPDFSDKVerifier Public NotInheritable Class SDKLicenseHelper Public Shared Function LicenseVerify() As Boolean If Not LoadNativeLibrary() Then Return False End If Dim verifyResult As LicenseErrorCode = CPDFSDKVerifier.LicenseVerify("license_key_windows.txt", True) Return (verifyResult <> LicenseErrorCode.E_LICENSE_SUCCESS) End Function End Class