[Haskell-cafe] a minimal Windows program in Haskell?

2 Nov 2008

      How do I make a minimal Windows application in Haskell?  I know there are Win API bindings in the libraries, and of course the ffi lets you call into and out of C, but I have no sense of how to bring it all together.  I can't find any samples either.

Is the Haskell code the "main" application and you just ffi into the Win API?  Or does it ffi into a win_main.c that I write?  Or is the win_main.c the "main" application and it calls into Haskell?

Here is what I am talking about by a "minimal Windows application" (written in psuedo C code).

#define WIN32_LEAN_AND_MEAN
#include 

LRESULT CALLBACK windowsProcedure(..) {
    switch(message) {
        case WM_CLOSE:
            PostQuitMessage(0);
            return 0;
    }
    return DefWindowProc(..);
}

int APIENTRY WinMain(..){
    WNDCLASS window_class;
    RegisterClass(&window_class)
    window = CreateWindow(..);
    ShowWindow(..);

    while(true) {
        /* do whatever */

        while(PeekMessage(..))
            if(msg.message ==  WM_QUIT)
                return msg.wParam;
            else
                DispatchMessage(&msg);
    }        
    return 0;
}

[Haskell-cafe] a minimal Windows program in Haskell?

Nun Aurbiz