Compile Error using DLL

[dzeek]

I'm getting the following compile error when trying to use a DLL and .h file that was provided to me. I can't seem to figure out what is causing the error. Any help would be appreciated.

Error file

Code: QB64: [Select]

1. In file included from ..\\temp\\regsf.txt:2,
2.                  from qbx.cpp:1076:
3. D:/STITCHORI/Windows/v1/DPPanoMakerProDLLMain.h:8:29: error: expected constructor, destructor, or type conversion before '(' token
4.  #define DLL_EXPORT _declspec(dllexport)
5.                              ^
6. D:/STITCHORI/Windows/v1/DPPanoMakerProDLLMain.h:16:12: note: in expansion of macro 'DLL_EXPORT'
7.  extern "C" DLL_EXPORT int ProMakePanoramaBuf(int threadNum, int memType, void* hRawFileReader, const char* outputDir, const char* fileNo,
8.             ^~~~~~~~~~
9. compilation terminated due to -Wfatal-errors.
10.  

My QB64 Program:

Code: QB64: [Select]

1. _TITLE "STITCH v1 - Stitch ORI files"
2.  
3. DECLARE DYNAMIC LIBRARY ".\PanoMakerPro"
4. END DECLARE
5.  
6. DECLARE LIBRARY ".\DPPanoMakerProDLLMain"
7.     FUNCTION ProInitRawFileReader& (fileBuf AS STRING, BYVAL fileSize)
8.     FUNCTION ProMakePanoramaBuf& (BYVAL threadNum AS INTEGER, BYVAL memType AS INTEGER, BYVAL hRawFileReader, outputDir AS STRING, fileNo AS STRING, BYVAL hdrSel AS INTEGER, BYVAL outputType AS INTEGER, BYVAL colorMode AS INTEGER, BYVAL extendMode AS INTEGER, BYVAL outputJpgType AS INTEGER, BYVAL outputQuality AS INTEGER, BYVAL stitchMode AS INTEGER, BYVAL gyroMode AS INTEGER, BYVAL templateMode AS INTEGER, templateFileName AS STRING, BYVAL logoAngle AS DOUBLE, BYVAL luminance AS DOUBLE, BYVAL contrastRatio AS DOUBLE, BYVAL gammaMode AS INTEGER, BYVAL wbMode AS INTEGER, BYVAL wbConfB AS DOUBLE, BYVAL wbConfG AS DOUBLE, BYVAL wbConfR AS DOUBLE, BYVAL saturation AS DOUBLE, dbgData AS STRING)
9. END DECLARE
10.  
11. DIM outputDir AS STRING
12. DIM fileNo AS STRING
13. DIM dbgData AS STRING
14. DIM result AS LONG
15. DIM handle AS LONG
16. DIM fileBuf AS STRING
17. DIM fileSize AS LONG
18.  
19.  
20. outputDir = ".\"
21. fileNo = "2020-05-18_07.20.51"
22.  
23. F% = FREEFILE
24. fileBuf = ""
25. OPEN fileNo + ".ori" FOR BINARY AS #F%
26. WHILE NOT EOF(F%)
27.     GET #F%, , Dat$
28.     fileBuf = fileBuf + Dat$
29. WEND
30. CLOSE F%
31.  
32. fileSize = LEN(fileBuf)
33.  
34. handle = ProInitRawFileReader(fileBuf, fileSize)
35. result = ProMakePanoramaBuf(4, 0, handle, outputDir, fileNo, 10, 0, 1, 0, 1, 90, 0, 0, 0, "", -1, 1.2, 1.3, 1, 0, 1.0, 1.0, 1.0, 1.0, dbgData)
36.  
37. END
38.  

DPPanoMakerProDLLMain.h file

Code: QB64: [Select]

1. //#ifndef EXE_OUT
2.  
3. #ifndef __PANOMAKERPRODLLMAIN_H__
4. #define __PANOMAKERPRODLLMAIN_H__
5.  
6. #if defined WIN32
7.  
8. #define DLL_EXPORT _declspec(dllexport)
9.  
10. #else
11.  
12. #define DLL_EXPORT __attribute__ ((visibility("default")))
13.  
14. #endif
15.  
16. extern "C" DLL_EXPORT int ProMakePanoramaBuf(int threadNum, int memType, void* hRawFileReader, const char* outputDir, const char* fileNo,
17.         int hdrSel, int outputType, int colorMode, int extendMode, int outputJpgType, int outputQuality, int stitchMode, int gyroMode, int templateMode, const char* templateFileName,
18.         double logoAngle, double luminance, double contrastRatio, int gammaMode, int wbMode, double wbConfB, double wbConfG, double wbConfR, double saturation, unsigned char* dbgData);
19.  
20. extern "C" DLL_EXPORT void* ProInitRawFileReader(unsigned char* fileBuf, int fileSize);
21.  
22. extern "C" DLL_EXPORT int ProUpdateRawFileReader(void* hRawFileReader, int bufWrPos);
23.  
24. extern "C" DLL_EXPORT int ProCleanRawFileReader(void* hRawFileReader);
25.  
26. extern "C" DLL_EXPORT double ProGetProgress(double lastProgress, unsigned char* dbgData);
27.  
28. #endif
29.  
30. //#endif
31.  

[jack]

have you tried without the C(++) header and only with the dll?

[luke]

"_declspec(dllexport)" is MSVC-specific syntax. QB64 always uses gcc/clang, so just fiddle with that #if on line 6 to use the other version (the __attribute__ one).

Then you can deal with whatever the next error is :)

[dzeek]

"_declspec(dllexport)" is MSVC-specific syntax. QB64 always uses gcc/clang, so just fiddle with that #if on line 6 to use the other version (the __attribute__ one).

Then you can deal with whatever the next error is :)

Thanks. That worked.