Take screenshot with directX?

[Dampy]

Hi, I am trying to take a screenshot using directX.
I have tried to compile some samples and read some articles but I can´t get it to work.

The problem is the 2 functions that saves the surface to a file, SurfaceLoader.Save() and D3DXSaveSurfaceToFile().

When I try to use surfaceloader.save I get the error: “error: `SurfaceLoader' undeclared (first use this function)”.

And then the function D3DXSaveSurfaceToFile that almost all uses in there examples and articles, when I try to use it I get the error: “main.cpp: undefined reference to `D3DXSaveSurfaceToFileA@20'”

I hope that someone can tell me how to get one of the functions to work, or how to work around the problem. like saving the surface to a GDI's BITMAP and then save it.

#include <windows.h>
#include <iostream.h>
#include <dx9/d3d9.h>
#include <dx9/d3dx9.h>
#include <dx9/D3dx9tex.h>

IDirect3DDevice9*	g_pd3dDevice=NULL;
IDirect3DSurface9*	g_pSurface=NULL;

using namespace std;

int WINAPI WinMain (HINSTANCE hThisInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpszArgument,
                    int nFunsterStil)

{
    g_pd3dDevice->CreateOffscreenPlainSurface(200, 300, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &g_pSurface, NULL);
    g_pd3dDevice->GetFrontBufferData(0, g_pSurface);
    //this
    SurfaceLoader.Save("Screenshot.bmp", 0, g_pSurface);
    //or???
    D3DXSaveSurfaceToFile("Screenshot.bmp",D3DXIFF_BMP,g_pSurface,NULL,NULL);
    
    g_pSurface->Release();
    return 0;
}

EDIT:
I use: DEV-C++, C++, dxsdk_aug2005