How to statically load against a DLL in Symbian OS Application?

[micojade]

For dynamically loading against DLL in Symbian OS Application, we use dlopen, dlsym, etc API function, but what is statically loading agaist DLL in Symbian OS Application? How to do a statically loading against DLL in Symbian OS??
Please can you give me some help!!

[skumar_rao]

Include lib in your MMP file.

[micojade]

Include lib in your MMP file.

Thank you!!! Does the lib always will be generated once I build out the corresponding DLL file? Where is it located? Please kindly give me information on this!

[skumar_rao]

only when you use EXPORTUNFROZEN in your MMP File.

[micojade]

only when you use EXPORTUNFROZEN in your MMP File.

Thanks! I will check with it. Does that mean, once I put *.lib file in the mmp, my App code will statically loads the DLL and i can directly call the APIs defined in the DLL file?

[skumar_rao]

yes. you can use the DLL Functions as any Static Lib Functions.

[micojade]

yes. you can use the DLL Functions as any Static Lib Functions.

It is very strange! I suppose it works, but when I in my App code to include the DLL file related header file, and also links the *.lib file in the MMP file, I did a direct API call such as LoadInside1() in my APP code, I do the build project, it gives the following build error,

Undefined symbol: 'void LoadInside1(char const *, char *) (?LoadInside1@@YAXPBDPAD@Z)'

Is there something wrong??

[skumar_rao]

I assume that you are using EXPORT IMPORT in CPP and H of your DLL code.

[micojade]

I assume that you are using EXPORT IMPORT in CPP and H of your DLL code.

Yes!! Should I remove IMPORT and EXPORT from the DLL's H and CPP file? I just did the remove, but building the App project still gives me the same error. I missed anything??

[skumar_rao]

No you must int remove EXPORT IMPORT.
I suggest you do a clean build.

[micojade]

No you must int remove EXPORT IMPORT.
I suggest you do a clean build.

“No you must int remove EXPORT IMPORT.” Or you mean I must keep the IMPORT and EXPORT?? Or remove them?

[skumar_rao]

You must keep IMPORT and EXPORT.

[vasant21]

This thread has some discussion about generating import library.

[micojade]

This thread has some discussion about generating import library.

Before anything else, I have quick question here,
1. For freeze operation,why in the .def file, before the functional name to be exported, there may be a ? sometimes, and othertimes, there is no ? beforehead.

2. Why does it have two forms after the ordinal number in the def file, sometimes it is NONAME; sometimes it is NONAME ABSENT;

Why is there such different thing for one same operation of freezing??

[mateen_maldar]

Hi,

check in your sdk help for

Symbian OS guide » P.I.P.S. » P.I.P.S. Guide » Porting Using P.I.P.S. » Dynamic Link Libraries

to know more about Dynamic Link Libraries

Regards,
Mateen Maldar