关于一个扫描仪的动态链接库的问题！

下面是动态链接库的SDK，请教各位大侠，这个动态链接库是不是专门为VC写的？只能用VC来调用？是也好，不是也好，能不能给一个VB或VC调用的简单例子？Avision Scanner Interface Protocol (Win32 DLL and Mac share library)  11/99
@@ Introduction
   This document decribes the Interface Protocol of Avision DLL function call.
   Win32 DLL and Mac share library use the same function call.
   In this document you can find:
   @ Structure and the member description.
   @ The Function Description of the DLL.
   @ How to call the export function of the DLL.
   @ The calling sequences of DLL.@@ Structure Description1> ScannerAbility
typedef struct tagScannerAbility{
   char Model[8];
   char FirmwareVersion[4];
   WORD OpticalRes;
   WORD MaxXRes;
   WORD MaxYRes;
   BYTE DataWidth;
   BYTE Reserved1;
   BYTE ImageType;
   BYTE ScanMethod;
   WORD FlatbedMaxWidth;
   WORD FlatbedMaxLength;
   WORD ADFMaxWidth;
   WORD ADFMaxLength;
   BYTE Reserved2;
   BYTE HalftoneNum;
   BYTE HighShadow;
   BYTE Invert;
   WORD TransparencyMaxWidth;
   WORD TransparencyMaxLength;
   BYTE Reserved3[6];
} SCANNERABILITY;typedef SCANNERABILITY FAR*   LPSCANNERABILITY@ Member Description of struct SCANNERABILITYMember              Sizes         DescriptionModel               8 Bytes       Model Name. ex: AV100C
FirmwareVersion     4 Bytes       Firmware Version. ex: 1.10
OpticalRes          WORD          the Max Optical resolution of this scanner
                                  ex: 300 dpi
MaxXRes             WORD          the Max resolution of horizontal direction
                                  ex: 300 dpi
MaxYRes             WORD          the Max resolution of vertical direction
                                  ex: 600 dpi
DataWidth           BYTE          output image pixel depth of this scanner
                                  bit control list below:
                                  bit        bits per pixel
                                  7          1
                                  6          3
                                  5          4
                                  4          6
                                  3          8
                                  2          12
                                  1          18
                                  0          24
  * For DataWidth more than 24 bits, please refer to ScannerAbilityEx
HasExtendAbility    BYTE          1: Support GetScannerAbilityEx Function
                                  0: No
                                  * If the driver can support GetScannerAbilityEx,
                                  it is better tocall GetScannerAbilityEx to get 
                                  full description of scanner ability. 
ImageType           BYTE          output image type of this scanner
                                  bit control list below:
                                  bit        image type
                                  7          Black/White
                                  6          3-pass Color
                                  5          1-pass Color
                                  others     reserved
ScanMethod          BYTE          scan method of this scanner
                                  bit control list below:
                                  bit        scan method
                                  7          flatbed
                                  6          roller type ADF
                                  5          flatbed with ADF
                                  4          roller without ADF
                                             (scan single page only)
                                  others     reserved
FlatbedMaxWidth     WORD          Max frame width of flatbed type scanner
                                  Max width = 300 * inches
FlatbedMaxLength    WORD          Max frame length of flatbed type scanner
                                  Max length = 300 * inches
ADFMaxWidth         WORD          Max limited width of ADF type scanner
                                  Max width = 300 * inches
ADFMaxLength        WORD          Max limited length of ADF type scanner
                                  Max length = 300 * inches
Reserved2           BYTE          reserved
HalftoneNum         BYTE          the number of build-in halftone pattern of
                                  this scanner
HighShadow          BYTE          0 - scanner can not support Highlight/Shadow
                                  1 - scanner can support Highlight/Shadow
Invert              BYTE          0 - scanner can not support Invert
                                  1 - scanner can support Invert
TransparencyMaxWidth      WORD    Max limited width of XPA type scanner
                                  Max width = 300 * inches
TransparencyMaxLength     WORD    Max limited length of XPA type scanner
                                  Max length = 300 * inches
Reserved3           6 Bytes      reserved
@@ Export Function Description of Device's DLL1> Initialize DriverPrototype    : BOOL WINAPI InitializeDriver(VOID);Description  : This function use to initializes/allocate the DLL internal value.
               This function must be called once before all export function is
               accessed.
               This function can not be called more than once.Return       : TRUE: Function success
               FALSE: Function failParameters   : None.