Help on Errors Please

Started by
10 comments, last by phear- 16 years, 3 months ago
Quote:Original post by Akul
Quote:Original post by pulpfist
Feel free to ask once you got visual c++ up and running...


Lol... Yeah. Can you direct me to a decent tutorial in basic game development with the Microsoft Visual C++ 2008? Or should it be very similar?

Also, similar error from Microsoft Visual C++ 2008:

1>TestProject1.obj : error LNK2019: unresolved external symbol _DirectDrawCreate@12 referenced in function "bool __cdecl DirectDrawInit(struct HWND__ *)" (?DirectDrawInit@@YA_NPAUHWND__@@@Z)
1>H:\My Documents\Visual Studio 2008\Projects\TestProject1\Debug\TestProject1.exe : fatal error LNK1120: 1 unresolved externals
1>Build log was saved at "file://h:\My Documents\Visual Studio 2008\Projects\TestProject1\TestProject1\Debug\BuildLog.htm"


Setting up Visual C++ to use DirectX SDK:

Go to: Tools -> Options -> Projects and solutions -> VC++ Directories.

Select Include files from the drop down list at the upper right corner and add the DirectX SDK include directory to the list.

Select Library files from the drop down list and add the DirectX SDK lib\x86 directory to the list.

The above is system wide configurations and need to be done only once.

For each project you must also add the DirectX lib files to your project properties.
Go to: Project -> properties -> configuration properties -> linker -> input, and add (in this case) ddraw.lib to the space separated list of additional dependencies.

See if that helps...
Advertisement
You can do what pulpfist said or you may use pragma to add it, such as:

#pragma comment( lib, "ddraw" )#pragma comment( lib, "dguid" )


Which will make the linker search for ddraw and dguid both in the project folder and in the main lib folders you have set up (which pulpfist showed you how to update).

Also, you don't actually try to use the directx init function from your main() function.
And besides that you are going to use the Windows SDK in order to actually use WinMain() to get several variables which are needed for DirectX.

Take a look at this code for more help on setting up directx/windows.

// include the basic windows header files and the Direct3D header file#include <windows.h>#include <windowsx.h>#include <d3d9.h>// include the Direct3D Library file#pragma comment (lib, "d3d9.lib")// global declarationsLPDIRECT3D9 d3d;    // the pointer to our Direct3D interfaceLPDIRECT3DDEVICE9 d3ddev;    // the pointer to the device class// function prototypesvoid initD3D(HWND hWnd);    // sets up and initializes Direct3Dvoid render_frame(void);    // renders a single framevoid cleanD3D(void);    // closes Direct3D and releases memory// the WindowProc function prototypeLRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);// the entry point for any Windows programint 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 = (WNDPROC)WindowProc;    wc.hInstance = hInstance;    wc.hCursor = LoadCursor(NULL, IDC_ARROW);    wc.hbrBackground = (HBRUSH)COLOR_WINDOW;    wc.lpszClassName = L"WindowClass";    RegisterClassEx(&wc);    hWnd = CreateWindowEx(NULL,                          L"WindowClass",                          L"Our First Direct3D Program",                          WS_OVERLAPPEDWINDOW,                          300, 300,                          640, 480,                          NULL,                          NULL,                          hInstance,                          NULL);    ShowWindow(hWnd, nCmdShow);    // set up and initialize Direct3D    initD3D(hWnd);    // enter the main loop:    MSG msg;    while(TRUE)    {        DWORD starting_point = GetTickCount();        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))        {            if (msg.message == WM_QUIT)                break;            TranslateMessage(&msg);            DispatchMessage(&msg);        }        render_frame();        while ((GetTickCount() - starting_point) < 25);    }    // clean up DirectX and COM    cleanD3D();    return msg.wParam;}// this is the main message handler for the programLRESULT 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 usevoid initD3D(HWND hWnd){    d3d = Direct3DCreate9(D3D_SDK_VERSION);    // create the Direct3D interface    D3DPRESENT_PARAMETERS d3dpp;    // create a struct to hold various device information    ZeroMemory(&d3dpp, sizeof(d3dpp));    // clear out the struct for use    d3dpp.Windowed = TRUE;    // program windowed, not fullscreen    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;    // discard old frames    d3dpp.hDeviceWindow = hWnd;    // set the window to be used by Direct3D    // 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);    return;}// this is the function used to render a single framevoid render_frame(void){    // clear the window to a deep blue    d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 40, 100), 1.0f, 0);    d3ddev->BeginScene();    // begins the 3D scene    // do 3D rendering on the back buffer here    d3ddev->EndScene();    // ends the 3D scene    d3ddev->Present(NULL, NULL, NULL, NULL);   // displays the created frame on the screen    return;}// this is the function that cleans up Direct3D and COMvoid cleanD3D(void){    d3ddev->Release();    // close and release the 3D device    d3d->Release();    // close and release Direct3D    return;}


Code is from DirectXTutorial.com
__________________________________________
Eugene Alfonso
GTP | Twitter | SFML | OS-Dev

This topic is closed to new replies.

Advertisement