UnlockSupport (Thumbnail Browser Control) example for C++ Builder

void __fastcall TForm1::Button2Click(TObject *Sender)
{
    Boolean bRet;
    bRet = LEADThumb1->IsSupportLocked(L_SUPPORT_OCR);
    if( bRet == true)
        LEADThumb1->UnlockSupport (L_SUPPORT_OCR, "yourstinghere");
}