如何将exe项目用作dll？

Question

I created some project that contains a class ( using them as object instance ). This project was POC to check some possibility -

Now I want to convert this project to dll - and import this dll to some other exe project.

I change the configuration Type of the project to "Dynamic Library ( .dll)" - and compile its ok.

But how I import this dll to my new exe project and use those classes from the other exe ?

Do I need to add some "dllExport" definition in some place on the dll project?

Answer 1

You will need to define a separate entry point for a DLL. An executable has the standard entry point:

int main(int argc, char* argue[], char* envy[]);

However for a Windows DLL, you need to define dllmain which will be called when the module is loaded and unloaded:

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved);

Further reading on Dynamic Link Libraries .