encpropsform.cpp

著名的SecureBlackBox控件完整源码

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "EncPropsForm.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TfrmEncryptionProps *frmEncryptionProps;
//---------------------------------------------------------------------------
__fastcall TfrmEncryptionProps::TfrmEncryptionProps(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void TfrmEncryptionProps::Initialize(TElPDFDocument* Document)
{
    if (Document->EncryptionHandler != NULL)
    {
        AnsiString AlgStr;
        editHandlerName->Text = Document->EncryptionHandler->GetName(__classid(TElPDFDocument));
        editHandlerDescription->Text = Document->EncryptionHandler->GetDescription(__classid(TElPDFDocument));
        if (Document->EncryptionHandler->StreamEncryptionAlgorithm == SB_ALGORITHM_CNT_RC4)
            AlgStr = (AnsiString)"RC4/" + Document->EncryptionHandler->StreamEncryptionKeyBits + " bits";
        else if (Document->EncryptionHandler->StreamEncryptionAlgorithm == SB_ALGORITHM_CNT_AES128)
            AlgStr = "AES/128 bits";
        else
            AlgStr = "UNKNOWN";
        lEncryptionAlgorithm->Caption = (AnsiString)"Encryption algorithm: " + AlgStr;
        if (Document->EncryptionHandler->EncryptMetadata)
            lMetadataStatus->Caption = "Metadata status: ENCRYPTED";
        else
            lMetadataStatus->Caption = "Metadata status: NOT ENCRYPTED";
        btnDecrypt->Enabled = true;
    }
    else
    {
        editHandlerName->Text = "UNKNOWN";
        editHandlerDescription->Text = "UNKNOWN";
        lMetadataStatus->Caption = "Metadata status: UNKNOWN";
        btnDecrypt->Enabled = false;
    }
}
//---------------------------------------------------------------------------
void __fastcall TfrmEncryptionProps::btnCancelClick(TObject *Sender)
{
  ModalResult = mrCancel;
}
//---------------------------------------------------------------------------
void __fastcall TfrmEncryptionProps::btnDecryptClick(TObject *Sender)
{
  ModalResult = mrOk;
}
//---------------------------------------------------------------------------