How can I get HINSTANCE from a DLL?

Microsoft linker specific

#include "windows.h"
EXTERN_C IMAGE_DOS_HEADER __ImageBase;
#pragma warning(disable: 4047)
HINSTANCE hInstance = (HINSTANCE)&__ImageBase;
#pragma warning(default: 4047)

An excerpt from the book Windows Via C/C++ [1]

Note As it turns out, HMODULEs and HINSTANCEs are exactly the same thing. If the documentation for a function indicates that an HMODULE is required, you can pass an HINSTANCE and vice versa. There are two data types because in 16-bit Windows HMODULEs and HINSTANCEs identified different things

[1] Richter, Jeffery and Nasarre, Christophe, Windows Via C/C++, 5th ed, Redmond: Microsoft Press 2008, pp. 74