How to add gdi32.lib from command line

Question

I have found an example where gdi32.lib should be linked in some way, but I don't know how to do this from GCC command line. All the examples I've found suggest to do this somewhere in project properties in MS Visual Studio or Eclipse.

bsod.cpp:

#include <windows.h>
int main() {
    HDC dc = CreateCompatibleDC (NULL);
    SetLayout (dc, LAYOUT_RTL);
    ScaleWindowExtEx (dc, -2147483647 - 1, -1, 1, 1, NULL);
}

My GCC compiler is from Ruby Development Kit (seems to be MinGW).

Answer 1

Just add this to the link command line:

-lgdi32

So that e.g. your link line will look like

gcc -o executable somemain.o -lgdi32

Make sure the library is specified after anything that needs it.

---

For example, if you have a single C++ source file named myprog.cpp, you would run

g++ -o myprog myprog.cpp -lgdi32

Or seperate the commands

g++ -c myprog.cpp
g++ -o myprog myprog.o -lgdi32

You can add optimization or debug options to the first two commands. The link command doesn't really need anything else.