Suggestion in using DLL

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i have a dll which has some functions.
i should also create a project which reads the data from a file and store those values in a class and those values works wrt the functions present in dll.

later i need to convert that project into dll so that i could use it in windows form.

can anyone tell me this is a good method to work and also the possibility to convert that project to dll so that i can use it in different windows form application

What I have tried:

i have a doubt that main.cpp could be included in the dll.

Posted 4-Dec-17 2:49am

Member 13475664

Updated 4-Dec-17 20:19pm

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Richard MacCutchan · Answer 1 · 2017-12-04T05:57:00

No main.cpp should not get included, that is only for an executable. If you do not understand how to create a DLL then take a look at Walkthrough: Creating and Using a Dynamic Link Library (C++)[^].

[edit]
Go to the link I gave you above and work through it. You need to understand the differences between what happens at:
- the compile stage: define the class and method names for export, and create the actual code that the DLL provides.
- the link stage: links the objects of the DLL into a loadable library.

You then need to understand how to use the DLL. Your executable will need:
- the header file associated with the DLL containing the exported names. The compiler will use those to create external references in the compiled objects.
- the .LIB file that is used to resolve the external references at link time.
- the DLL itself that the loader will access at execution time.
[/edit]

Member 13475664 · Answer 2 · 2017-12-04T20:19:00

Solution 2

can you tell me how to link the library and the .h and .cpp file and convert into dll.
is it possible through cmake target link library.

Posted 4-Dec-17 20:19pm

Member 13475664

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Richard MacCutchan 5-Dec-17 3:15am

See my edit above. Please do not post supplementary questions as Solutions, use the "Have a Question or Comment?" or "Reply" links below other messages.

Member 13475664 5-Dec-17 3:49am

thank you so much i would go through and try to implement