private native int CRTK_Init(int[] lphRTK);
    private native int CRTK_Term(int hRTK);

    private native int CRTK_ScanCheckForCard(int hRTK);
    private native int CRTK_ScanConfigure(int hRTK,int intOwner);
    private native int CRTK_ScanAcquire(int hRTK,int dwTimeout);
    private native int CRTK_ScanAcquireEx(int hRTK,int dwTimeout,int lpfnCallback,byte[] lpData);
    private native int CRTK_ScanGetDeviceParam(int hRTK,String lpszParamName,String[] lpszBuf);
    private native int CRTK_ScanSetDeviceParam(int hRTK,String lpszParamName,String lpszValue);
    private native int CRTK_ScanCalibrate(int hRTK);

    private native int CRTK_ImageSave(int hRTK,String lpszFilename);
    private native int CRTK_ImageLoad(int hRTK,String lpszFileame);
    private native int CRTK_ImageExport(int hRTK,String lpszFormat,String lpszFilename);
    private native int CRTK_ImageConvert(int hRTK,int lpfnCallback,byte[] lpData);
    private native int CRTK_ImageConvertEx(int hRTK,int lpfnCallback,byte[] lpData,int dwFlags);
    private native int CRTK_ImageDestroy(int hRTK);
    private native int CRTK_ImageSet(int hRTK,int hDIB);
    private native int CRTK_ImageGet(int hRTK,int[] lphDIB);

    private native int CRTK_GetCropRectangle(int hRTK,int[] lpdwLeft,int[] lpdwTop,
                                                int[] lpdwRight,int[] lpdwBottom);
    private native int CRTK_GetSkewAngle(int hRTK,int[] lpdwSkewAngle);
    private native int CRTK_GetRotateAngle(int hRTK,int[] lpdwRotateAngle);
    private native int CRTK_Recognize(int hRTK,int lpfnCallback,byte[] data);
    private native int CRTK_RecognizeEx(int hRTK,int lpfnCallback,byte[] data,int dwFlags);
    private native int CRTK_GetText(int hRTK,String lpszFieldName,String[] lpszBuf);
    private native int CRTK_GetTextEx(int hRTK,String lpszFieldName,String[] lpszBuf,int[] lpdwOCRIndex);
    private native int CRTK_EnumText(int hRTK,String lpszFieldName,int dwIndex,String[] lpszBuf,
                                        String[] lpszType);
    private native int CRTK_EnumTextEx(int hRTK,String lpszFieldName,int dwIndex,String[] lpszBuf,
                                        String[] lpszType,int[] lpdwOCRIndex);
    private native int CRTK_EnumOCRText(int hRTK,int dwIndex,String[] lpszBuf,int[] lpdwLeft,
                                        int[] lpdwTop,int[] lpdwRight,int[] lpdwBottom,int[] lpdwFont,
                                        int[] lpdwPointSize);

    private native int CRTK_DBCreate(int hRTK,String lpszFilename,int[] lphRTKDB);
    private native int CRTK_DBOpen(int hRTK,String lpszFilename,String lpszPassword,int[] lphRTKDB);
    private native int CRTK_DBClose(int hRTKDB);
    private native int CRTK_DBBeginUpdate(int hRTKDB);
    private native int CRTK_DBCommitUpdate(int hRTKDB);
    private native int CRTK_DBCommitUpdateEx(int hRTKDB,int[] lpdwRevision);
    private native int CRTK_DBAbortUpdate(int hRTKDB);
    private native int CRTK_DBGetRevisionNumber(int hRTKDB,int[] lpdwRevision);
    private native int CRTK_DBGetGUID(int hRTKDB,String[] lpszBuf);
    private native int CRTK_DBEnumCategories(int hRTKDB,int dwIndex,String[] lpszBuf);
    private native int CRTK_DBEnumLabels(int hRTKDB,String lpszFieldName,int dwIndex,String[] lpszBuf);
    private native int CRTK_DBEnumChanges(int hRTKDB,int dwStartRevision,int dwIndex,int[] lpdwRevision,
                                            int[] lpdwID,int[] lpdwChangeType,String[] lpszChangeInfo);
    private native int CRTK_DBGetNumberOfCards(int hRTKDB,int[] lpdwResult);
    private native int CRTK_DBGetCard(int hRTKDB,int dwIndex,int[] lpdwID);
    private native int CRTK_DBGetCardByGUID(int hRTKDB,String lpszGUID,int[] lpdwID);
    private native int CRTK_DBGetCardGUID(int hRTKDB,int dwID,String[] lpszBuf);
    private native int CRTK_DBGetValue(int hRTKDB,int dwID,String lpszFieldName,String[] lpszBuf);
    private native int CRTK_DBEnumValue(int hRTKDB,int dwID,String lpszFieldName,int dwIndex,String[] lpszBuf,
                                        String[] lpszLabel);
    private native int CRTK_DBPutValue(int hRTKDB,int dwID,String lpszFieldName,String lpszValue);
    private native int CRTK_DBQueryExists(int hRTKDB,int lpdwID,int[] dwIndex);
    private native int CRTK_DBCreateCard(int hRTKDB,int[] lpdwID,int[] lpdwIndex);
    private native int CRTK_DBCreateCardEx(int hRTKDB,String lpszGUID,int[] lpdwID,int[] lpdwIndex);
    private native int CRTK_DBDeleteCard(int hRTKDB,int dwID);
    private native int CRTK_DBGetNumberOfCategories(int hRTKDB,int[] lpdwResult);
    private native int CRTK_DBGetCategory(int hRTKDB,int dwIndex,int[] lpdwID);
    private native int CRTK_DBGetCategoryName(int hRTKDB,int dwID,String[] lpszBuf);
    private native int CRTK_DBGetCategoryGUID(int hRTKDB,int dwID,String[] lpszBuf);
    private native int CRTK_DBSetCategoryGUID(int hRTKDB,int dwID,String lpszGUID);
    private native int CRTK_DBGetCategoryByName(int hRTKDB,String lpszName,int[] lpdwID);
    private native int CRTK_DBGetCategoryByGUID(int hRTKDB,String lpszGUID,int[] lpdwID);
    private native int CRTK_DBCreateCategory(int hRTKDB,String lpszName,String lpszGUID,
                                             int[] lpdwID,int[] lpdwIndex);
    private native int CRTK_DBDeleteCategory(int hRTKDB,int dwID);
    private native int CRTK_DBRenameCategory(int hRTKDB,int dwID,String lpszName);
    private native int CRTK_DBGetAccuCardStatus(int hRTKDB,int dwID,int[] lpdwStatus);
    private native int CRTK_DBSetAccuCardStatus(int hRTKDB,int dwID,int dwStatus);
    private native int CRTK_DBEnumAccuCardStatus(int hRTKDB,int dwIndex,int[] lpdwID,int[] lpdwStatus);
    private native int CRTK_DBQueryHasImage(int hRTKDB,int dwID);
    private native int CRTK_DBQueryHasImageEx(int hRTKDB,int dwID,int dwIndex);
    private native int CRTK_DBGetImage(int hRTKDB,int dwID,int[] lphDIB);
    private native int CRTK_DBGetImageEx(int hRTKDB,int dwID,int dwIndex,int[] lphDIB);
    private native int CRTK_DBPutImage(int hRTKDB,int dwID,int dwIndex,int hDIB);
    private native int CRTK_GetVersion(int[] lpdwMajor,int[] lpdwMinor);
    private native int CRTK_GetErrorMessage(int dwErrorCode,String[] lpszMsg,String[] lpszRemedy);