DirectX programming in C?

In the past I have created DirectX applications in the C++ programming language, however, I would like to know if it is possible to do this using the C programming language.

Thanks.

Yes it is possible. DirectX exposes a COM interface and C is capable of consuming them. It won't be a whole boat load of fun though!

The Open Watcom C/C++ compiler comes with DirectX sample applications in both C++ and C. Both work. They are under WATCOM\samples\directx\cpp and WATCOM\samples\directx\c respectively in OW 1.9.

This is what the code looks like in C++:

hr = d3d->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &d3dcaps9);
hr = d3d->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3ddm);
hr = d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, game_window, D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED, &d3dpp, &d3d_dev);

And in C:

hr = IDirect3D9_GetDeviceCaps(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &d3dcaps9);
hr = IDirect3D9_GetAdapterDisplayMode(d3d, D3DADAPTER_DEFAULT, &d3ddm);
hr = IDirect3D9_CreateDevice(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, game_window, D3DCREATE_HARDWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED, &d3dpp, &d3d_dev);

You don't need to do anything special with COM in C as there seem to be enough macros defined that you can just use.

You can use DirectX in C. It has specific macros to simplify the use of the COM interface. However, it's much easier to use C++.

I think that the DirectX libraries have some C++ only components (it's been a while since I've used it and from last I remember it contains classes). Might as well make your life a little easier and do it in C++.

It is possible, but because you lack the higher level functions C++ provides you are making it harder for yourself.

来源：https://stackoverflow.com/questions/4696079/directx-programming-in-c

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