Okno w OpenGL

[Lunatyk]

Ten program ma rysować i obracać trójkąt, ale nie działa. W Visual'u niezbyt rozumiem te błędy jak nie ma nigdzie podkreślenia.

 

#define WIN32_LEAN_AND_MEAN

#include <Windows.h>
#include <GL/GL.H>
#include <GL/GLU.H>
#include <GL/GLAUX.H>

float angle = 0.0f;
HDC g_HDC;

void SetupPixelFormat (HDC hDC)
{
    int nPixelFormat;

    static PIXELFORMATDESCRIPTOR pfd = {
        sizeof(PIXELFORMATDESCRIPTOR),
        1,
        PFD_DRAW_TO_WINDOW |
        PFD_SUPPORT_OPENGL |
        PFD_DOUBLEBUFFER,
        PFD_TYPE_RGBA,
        32,
        0, 0, 0, 0, 0, 0,
        0,
        0,
        0,
        0, 0, 0, 0,
        16,
        0,
        0,
        PFD_MAIN_PLANE,
        0,
        0, 0, 0 };

    nPixelFormat = ChoosePixelFormat (hDC, &pfd);

    SetPixelFormat (hDC, nPixelFormat, &pfd);
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    static HGLRC hRC;
    static HDC hDC;
    int width, height;

    switch (message)
    {
    case WM_CREATE:

        hDC = GetDC (hwnd);
        g_HDC = hDC;
        SetupPixelFormat (hDC);

        hRC = wglCreateContext (hDC);
        wglMakeCurrent (hDC, hRC);

        return 0;
        break;

    case WM_CLOSE:

        wglMakeCurrent (hDC, NULL);
        wglDeleteContext (hRC);

        PostQuitMessage (0);

        return 0;
        break;

    case WM_SIZE:
        height = HIWORD (lParam);
        width = LOWORD (lParam);

        if (height == 0)
        {
            height = 1;
        }

        glViewport (0, 0, width, height);
        glMatrixMode (GL_PROJECTION);
        glLoadIdentity();

        gluPerspective (45.0f, (GLfloat)width/(GLfloat)height, 1.0f, 1000.0f);
        glMatrixMode (GL_MODELVIEW);
        glLoadIdentity();

        return 0;
        break;

    default:
        break;
    }

    return (DefWindowProc (hwnd, message, wParam, lParam));
}

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
    WNDCLASSEX windowClass;
    HWND hwnd;
    MSG msg;
    bool done;
    LPCWSTR myClass = TEXT ("MojaKlasa");

    windowClass.cbSize = sizeof (WNDCLASSEX);
    windowClass.style = CS_HREDRAW | CS_VREDRAW;
    windowClass.lpfnWndProc = 0;
    windowClass.cbClsExtra = 0;
    windowClass.hInstance = hInstance;
    windowClass.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    windowClass.hCursor = LoadCursor (NULL, IDC_ARROW);
    windowClass.hbrBackground = NULL;
    windowClass.lpszMenuName = NULL;
    windowClass.lpszClassName = myClass;
    windowClass.hIconSm = LoadIcon (NULL, IDI_WINLOGO);

    if (!RegisterClassEx (&windowClass))
        return 0;

    hwnd = CreateWindowEx (NULL,
        myClass,
        TEXT ("Aplikacja OpenGL"),
        WS_OVERLAPPEDWINDOW | WS_VISIBLE |
        WS_SYSMENU | WS_CLIPCHILDREN |
        WS_CLIPSIBLINGS,
        100, 100,
        400, 400,
        NULL,
        NULL,
        hInstance,
        NULL);

    if (!hwnd)
        return 0;

    ShowWindow (hwnd, SW_SHOW);
    UpdateWindow (hwnd);

    done = false;

    while (!done)
    {
        PeekMessage (&msg, hwnd, NULL, NULL, PM_REMOVE);

        if (msg.message == WM_QUIT)
        {
            done = true;
        }
        else
        {
            glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
            glLoadIdentity();

            angle = angle + 0.1f;
            if (angle >= 360.0f)
                angle = 0.0f;
            glTranslatef (0.0f, 0.0f, -5.0f);
            glRotatef (angle, 0.0f, 0.0f, 1.0f);

            glColor3f (1.0f, 0.0f, 0.0f);
            glBegin (GL_TRIANGLES);
                glVertex3f (0.0f, 0.0f, 0.0f);
                glVertex3f (1.0f, 0.0f, 0.0f);
                glVertex3f (1.0f, 1.0f, 0.0f);
            glEnd();
            SwapBuffers (g_HDC);

            TranslateMessage (&msg);
            DispatchMessage (&msg);
        }
    }
    return msg.wParam;
}

 

 

 

1>------ Build started: Project: OpenGL, Configuration: Debug Win32 ------
1>Build started 2010-10-23 11:20:55.
1>InitializeBuildStatus:
1>  Touching "Debug\OpenGL.unsuccessfulbuild".
1>ClCompile:
1>  All outputs are up-to-date.
1>ManifestResourceCompile:
1>  All outputs are up-to-date.
1>main.obj : error LNK2019: unresolved external symbol __imp__gluPerspective@32 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__glLoadIdentity@0 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__glMatrixMode@4 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__glViewport@16 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__wglDeleteContext@4 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__wglMakeCurrent@8 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__wglCreateContext@4 referenced in function "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__glEnd@0 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glVertex3f@12 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glBegin@4 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glColor3f@12 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glRotatef@16 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glTranslatef@12 referenced in function _WinMain@16
1>main.obj : error LNK2019: unresolved external symbol __imp__glClear@4 referenced in function _WinMain@16
1>C:\Documents and Settings\Mannor\Pulpit\test\opengl\OpenGL\Debug\OpenGL.exe : fatal error LNK1120: 14 unresolved externals
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.82
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

[PsichiX]

unresolved external symbol

oznacza że nie podałeś linkerowi plików .lib których wymaga aplikacja OGL. u Ciebie to będą: opengl32.lib, glu32.lib

[Platyna]

Czyżby lektura "OpenGL Programowanie Gier"? ;)

[Lunatyk]

@ΨΧΞ

Thx. :)

 

Czyżby lektura "OpenGL Programowanie Gier"? ;)

Yes :)