#include <d3dx9.h> problems

[S_Grimm]

Right, Im working on learning DirectX (Because DirectX is more frequently updated and allows sound and input from joysticks), but i keep getting an error when trying to compile this code:

c++:

// include the basic windows header files and the Direct3D header file #include <windows.h> #include <windowsx.h> #define D3D_SDK_VERSION 32 #define D3D9b_SDK_VERSION 31 #include <d3d9.h> #include <d3dx9.h> //This line here // define the screen resolution #define SCREEN_WIDTH 800 #define SCREEN_HEIGHT 600 // include the Direct3D Library file #pragma comment (lib, "d3d9.lib") #pragma comment (lib, "d3dx9.lib") // global declarations LPDIRECT3D9 d3d;    // the pointer to our Direct3D interface LPDIRECT3DDEVICE9 d3ddev;    // the pointer to the device class LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL;    // the pointer to the vertex buffer // function prototypes void initD3D(HWND hWnd);    // sets up and initializes Direct3D void render_frame(void);    // renders a single frame void cleanD3D(void);    // closes Direct3D and releases memory void init_graphics(void);    // 3D declarations struct CUSTOMVERTEX {FLOAT X, Y, Z, RHW; DWORD COLOR;}; #define CUSTOMFVF (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) // the WindowProc function prototype LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); // the entry point for any Windows program int WINAPI WinMain(HINSTANCE hInstance,                    HINSTANCE hPrevInstance,                    LPSTR lpCmdLine,                    int nCmdShow) {     HWND hWnd;     WNDCLASSEX wc;     ZeroMemory(&wc, sizeof(WNDCLASSEX));     wc.cbSize = sizeof(WNDCLASSEX);     wc.style = CS_HREDRAW | CS_VREDRAW;     wc.lpfnWndProc = WindowProc;     wc.hInstance = hInstance;     wc.hCursor = LoadCursor(NULL, IDC_ARROW);     wc.lpszClassName = "WindowClass";     RegisterClassEx(&wc);     hWnd = CreateWindowEx(0,                           "WindowClass",                           "Our Direct3D Program",                           WS_OVERLAPPEDWINDOW,                           0, 0,                           SCREEN_WIDTH, SCREEN_HEIGHT,                           NULL,                           NULL,                           hInstance,                           NULL);     ShowWindow(hWnd, nCmdShow);     // set up and initialize Direct3D     initD3D(hWnd);     // enter the main loop:     MSG msg;     while(TRUE)     {         while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))         {             TranslateMessage(&msg);             DispatchMessage(&msg);         }         if(msg.message == WM_QUIT)             break;         render_frame();     }     // clean up DirectX and COM     cleanD3D();     return msg.wParam; } // this is the main message handler for the program LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {     switch(message)     {         case WM_DESTROY:             {                 PostQuitMessage(0);                 return 0;             } break;     }     return DefWindowProc (hWnd, message, wParam, lParam); } // this function initializes and prepares Direct3D for use void initD3D(HWND hWnd) {     d3d = Direct3DCreate9(D3D_SDK_VERSION);     D3DPRESENT_PARAMETERS d3dpp;     ZeroMemory(&d3dpp, sizeof(d3dpp));     d3dpp.Windowed = TRUE;     d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;     d3dpp.hDeviceWindow = hWnd;     d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;     d3dpp.BackBufferWidth = SCREEN_WIDTH;     d3dpp.BackBufferHeight = SCREEN_HEIGHT;     // create a device class using this information and the info from the d3dpp stuct     d3d->CreateDevice(D3DADAPTER_DEFAULT,                       D3DDEVTYPE_HAL,                       hWnd,                       D3DCREATE_SOFTWARE_VERTEXPROCESSING,                       &d3dpp,                       &d3ddev);     init_graphics();    // call the function to initialize the triangle } // this is the function used to render a single frame void render_frame(void) {     d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);     d3ddev->BeginScene();         // select which vertex format we are using         d3ddev->SetFVF(CUSTOMFVF);         // select the vertex buffer to display         d3ddev->SetStreamSource(0, v_buffer, 0, sizeof(CUSTOMVERTEX));         // copy the vertex buffer to the back buffer         d3ddev->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);     d3ddev->EndScene();     d3ddev->Present(NULL, NULL, NULL, NULL); } // this is the function that cleans up Direct3D and COM void cleanD3D(void) {     v_buffer->Release();    // close and release the vertex buffer     d3ddev->Release();    // close and release the 3D device     d3d->Release();    // close and release Direct3D } // this is the function that puts the 3D models into video RAM void init_graphics(void) {     // create the vertices using the CUSTOMVERTEX struct     CUSTOMVERTEX vertices[] =     {         { 400.0f, 62.5f, 0.5f, 1.0f, D3DCOLOR_XRGB(0, 0, 255), },         { 650.0f, 500.0f, 0.5f, 1.0f, D3DCOLOR_XRGB(0, 255, 0), },         { 150.0f, 500.0f, 0.5f, 1.0f, D3DCOLOR_XRGB(255, 0, 0), },     };     // create a vertex buffer interface called v_buffer     d3ddev->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX),                                0,                                CUSTOMFVF,                                D3DPOOL_MANAGED,                                &v_buffer,                                NULL);     VOID* pVoid;    // a void pointer     // lock v_buffer and load the vertices into it     v_buffer->Lock(0, 0, (void**)&pVoid, 0);     memcpy(pVoid, vertices, sizeof(vertices));     v_buffer->Unlock(); }

if i comment

c++:

#include <d3dx9.h>

then all my problems go away.

Im compiling with mingw32 using -ld3d9 -ld3dx9

Any help appriciated

[DemonWasp]

...and what errors are you getting?

Incidentally, OpenGL is just the Graphics Library. There's also OpenAL (Audio Library) and I believe there's something like OpenIL (Input Library). Frequency of update doesn't mean a whole lot when OpenGL tends to have features months ahead of DX, too. Just for thought, you're welcome to continue DX work, of course.

[S_Grimm]

Never mind. I figured it out. I needed some extra code xD