Thread: Making C DLL using MSVC++ 2005

ok lets say we will use dll's then

in MyProgram.h
the code goes:

Code:

int foo(int *num);
int foo2(int *gum);

what do i have to do with these files?
resource.h
stdafx.h
assemblyinfo.cpp
stdafx.cpp

assemblyinfo.cpp does not appear in native dlls.
They ONLY appear in dotNet projects.
In short, you have the wrong type of project!

stdafx.cpp/stdafx.h are for PCH, which you can use or ignore. They're very simply to use, really.
Resource.h is for resources, if you have any. Dialogs, menus, icons, etc.

Yes, you must create an appropriate project.
All native projects, non-dotNet, are located under Win32.

Also, here's a DLL tutorial:
http://cboard.cprogramming.com/showp...9&postcount=16
It's for C++, though, but works fine for C.

Make SURE you have a proper project!

What errors?

Code:

1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2059: syntax error : ','
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2059: syntax error : ')'

EDIT: ok for that to make sense I will have to post the actual functions (im not supposed to :P)

Code:

// Error display function
__declspec(dllexport) void DisplayError(Int32 error);
//
// Callbacks
__declspec(dllexport) int AnalogueCardInit(SessHandle *Sess, InterHandle *Inter, int *Width, int *Height, uInt8 *image1D, uInt8 **image2D);
__declspec(dllexport) int AnalogueCardClose(SessHandle *Sess, InterHandle *Inter);
__declspec(dllexport) int AnalogueCardSnap(SessHandle Sid, uInt8 *ImaqBuffer, uInt32 top, uInt32 left, uInt32 height, uInt32 width);

__declspec(dllexport) void DisplayError(error);

missing type for the parameter

if i include the data types i get many more errors: I guess i will post those too. I thought it would be good to deal with one set of errors first but that might have been a bad idea

Code:

1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(2) : error C2146: syntax error : missing ')' before identifier 'error'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(2) : error C2061: syntax error : identifier 'error'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(2) : error C2059: syntax error : ';'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(2) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2143: syntax error : missing ';' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2059: syntax error : 'type'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2143: syntax error : missing ';' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(6) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2146: syntax error : missing ')' before identifier 'Sid'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2061: syntax error : identifier 'Sess'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2059: syntax error : ';'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2059: syntax error : ','
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(7) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(95) : warning C4142: benign redefinition of type
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(95) : error C2370: 'InterHandle' : redefinition; different storage class
1>        c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.h(5) : see declaration of 'InterHanle'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1274) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1274) : error C2081: 'InterHandle' : name in formal parameter list illegal
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1274) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1274) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1275) : error C2146: syntax error : missing ')' before identifier 'ifid'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1275) : error C2061: syntax error : identifier 'ifid'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1275) : error C2059: syntax error : ';'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1275) : error C2059: syntax error : ','
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1275) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1326) : error C2146: syntax error : missing ')' before identifier 'ifid'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1326) : error C2061: syntax error : identifier 'ifid'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1326) : error C2059: syntax error : ';'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\niimaq.h(1326) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(113) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(113) : error C2081: 'InterHandle' : name in formal parameter list illegal
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(113) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(113) : error C2059: syntax error : 'type'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(113) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(193) : error C2143: syntax error : missing ')' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(193) : error C2081: 'InterHandle' : name in formal parameter list illegal
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(193) : error C2143: syntax error : missing '{' before '*'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(193) : error C2059: syntax error : ')'
1>c:\documents and settings\desktop\imaq code\1.0\1.0.2dv3\dlltest\aquisition.c(194) : error C2054: expected '(' to follow 'Inter'

Have you defined all these types:
Int32, SessHandle, InterHandle, uInt8?
My guess is you haven't included proper headers because the compiler is (probably) barking at them.

Is your compiler a dog?

No, an army sergeant that makes you knock it down when you forget to include headers