问题
Is it possible to load a DLL with C and use its functions?
I am new in C, and I am trying to search some good references on the internet for this; but I can't find any.
Any help would be appreciated!
I am using GNU GCC in Code::Blocks on Windows 7, 64 Bit.
回答1:
HMODULE hModule = LoadLibrary(<dll file name>) followed by GetProcAddress(hModule, <function name>) will do this job using the WinAPI.
An example could be found here.
回答2:
I think you should investigate the LoadLibrary function.
http://msdn.microsoft.com/en-us/library/ms684175.aspx
Loads the specified module into the address space of the calling process. The specified module may cause other modules to be loaded.
回答3:
Building a DLL using MinGW, here are some instructions:
First, you need to mark your functions for export, so they can be used by callers of the DLL. To do this, modify them so they look like (for example)
__declspec( dllexport ) int add2(int num){
return num + 2;
}
then, assuming your functions are in a file called funcs.c, you can compile them:
gcc -shared -o mylib.dll funcs.c
The -shared flag tells gcc to create a DLL.
For a free IDE which will automate all the flags etc. needed to build DLLs, take a look at the excellent Code::Blocks, which works very well with MinGW.
Also, see the article Creating a MinGW DLL for Use with Visual Basic on the MinGW Wiki.
来源：https://stackoverflow.com/questions/13034728/load-dll-library