将CVI程序打包成DLL，在VC中调用时出现的问题！(已经解决)

xz_guan

将CVI程序打包成DLL，在VC中调用，调用后，DLL会显示程序面板。

现在的问题是，可以编译生成DLL，无报错，但编译主程序时，显示如下错误：

The callback function, TransmitCB, specified in the UIR file, is not a    known function. If you are using an external compiler, you must include     the UIR callbacks object or source file in the executable or DLL
各位有没有碰到过这样的问题呢？

胆生毛

你先在cvi中调用你生成的dll，测试看是否成功。如果成功，就是在VC中调用的问题。先测试通过再说。有没有将UIR文件也打包到DLL中呢？

xz_guan

将UIR文件打包进dll了，出问题的提示信息是这样的：


源文件中调用的函数：

1. 
   
2. 
   
3. int __stdcall browsedll(void)    //在头文件中有申明为导出函数
   
4. {
   
5. if ((panelHandle = LoadPanelEx (0, "browse client.uir", PANEL,__CVIUserHInst))< 0)
   
6. return -1;
   
7. CmtNewThreadPool (5, &poolHandle);
   
8. DisplayPanel (panelHandle);
   
9. SetSleepPolicy(VAL_SLEEP_MORE);
   
10. SetActiveCtrl (panelHandle, PANEL_STRING);
    
11. RunUserInterface ();
    
12. /*DisconnectFromTCPServer (g_hconversation1);*/
    
13. DiscardPanel (panelHandle);
    
14. CloseCVIRTE();/*释放dll所占用的内存*/
    
15. return 0;
    
16. }
    
17. 
    
18. int __stdcall DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
    
19. {
    
20. switch (fdwReason)
    
21. {
    
22. case DLL_PROCESS_ATTACH:
    
23. if (InitCVIRTE (hinstDLL, 0, 0) == 0)
    
24. return 0; /* out of memory */
    
25. break;
    
26. case DLL_PROCESS_DETACH:
    
27. CloseCVIRTE ();
    
28. break;
    
29. }
    
30. return 1;
    
31. }
    
32. 
    
33. int __stdcall DllEntryPoint (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
    
34. {
    
35. /* Included for compatibility with Borland */
    
36. 
    
37. return DllMain (hinstDLL, fdwReason, lpvReserved);
    
38. }
    

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VC++中调用DLL的程序代码：

1. 
   
2. HINSTANCE hDLL; // Handle to DLL
   
3. void Ccvitestctr::InitDll()
   
4. {
   
5. typedef int (CALLBACK* LPFNDLLFUNC1)(void);
   
6. 
   
7. 
   
8. LPFNDLLFUNC1 lpfnDllFunc1; // Function pointer
   
9. 
   
10. int uReturnVal;
    
11. 
    
12. hDLL = LoadLibrary("browseclient.dll");
    
13. ::MessageBox(NULL,"动态库！", "提示信息", MB_OK | MB_ICONINFORMATION);
    
14. 
    
15. if (hDLL != NULL)
    
16. {
    
17. lpfnDllFunc1 = (LPFNDLLFUNC1)GetProcAddress(hDLL, "browsedll");
    
18. if (!lpfnDllFunc1)
    
19. {
    
20. ::MessageBox(NULL,"加载动态库不成功！", "提示信息", MB_OK | MB_ICONINFORMATION);
    
21. // handle the error
    
22. FreeLibrary(hDLL);
    
23. }
    
24. else
    
25. {
    
26. // call the function
    
27. uReturnVal = lpfnDllFunc1();
    
28. }
    
29. }
    
30. else
    
31. {
    
32. ::MessageBox(NULL,"调用动态库不成功！", "提示信息", MB_OK | MB_ICONINFORMATION);
    
33. 
    
34. }
    
35. }
    

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最后是打包成CAB，放在网页中使用

CVI的界面可以显示出来，但是提示调用回调函数出错，不知是什么原因。求指教~