[OpenGL] MFC-OpenGL 연동하기

개발환경

• Visual C++ V11 (2012)

• GLUT V3.7.6 Download

glut-3.7.6-bin.zip

프로젝트 생성

Templates	MFC Application
Name	MFCOpenGL
Application Type	Dialog Based
Project Style	MFC

OpenGL 개발환경 설정

• 프로젝트 > Property Pages > C/C++ > General > Additional Include Directories : {GLUT_LIB_PATH}\glut-3.7.6-bin

• 프로젝트 > Property Pages > Linker > General > Additional Library Directories : {GLUT_LIB_PATH}\glut-3.7.6-bin

• 프로젝트 > Property Pages > Linker > Input > Additional Dependencies : glut32.lib 추가

CMGCOpenGLDlg Class에 멤버 추가

"MFCOpenGLDlg.h"

public: HGLRC m_hRC; HDC m_hDC;

CMFCOpenGLDlg 소스에 헤더 추가

"MFCOpenGLDlg.cpp"

#include <glut.h> #include <gl\GL.h> #include <gl\GLU.h>

OnCreate() 함수 작성

Class View > CMFCOpenGLDlg 선택

Properties > Messages > WM_CREATE > <Add>

int CMFCOpenGLDlg::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CDialogEx::OnCreate(lpCreateStruct) == -1) return -1; // TODO: Add your specialized creation code here int nPixelFormat; m_hDC = ::GetDC(m_hWnd); static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, PFD_MAIN_PLANE, 0, 0, 0, 0 }; nPixelFormat = ChoosePixelFormat(m_hDC, &pfd); VERIFY(SetPixelFormat(m_hDC, nPixelFormat, &pfd)); m_hRC = wglCreateContext(m_hDC); VERIFY(wglMakeCurrent(m_hDC, m_hRC)); wglMakeCurrent(NULL, NULL); return 0; }

GLResize() 함수 작성

Class View > CMFCOpenGLDlg 오른쪽 마우스 클릭

Add > Add Function

void CMFCOpenGLDlg::GLResize(int cx, int cy) { GLfloat fAspect; if(cy == 0) cy = 1; glViewport(0, 0, cx, cy); fAspect = (GLfloat) cx / (GLfloat) cy; glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(60.0f, fAspect, 1.0f, 10000.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); }

OnSize() 함수 작성

Class View > CMFCOpenGLDlg 선택

Properties > Messages > WM_SIZE> <Add>

void CMFCOpenGLDlg::OnSize(UINT nType, int cx, int cy) { CDialogEx::OnSize(nType, cx, cy); // TODO: Add your message handler code here VERIFY(wglMakeCurrent(m_hDC, m_hRC)); GLResize(cx, cy); VERIFY(wglMakeCurrent(NULL, NULL)); }

GLRenderScene() 함수 작성

Class View > CMFCOpenGLDlg 오른쪽 마우스 클릭

Add > Add Function

void CMFCOpenGLDlg::GLRenderScene(void) { glClearColor(1.0f, 1.0f, 1.0f, 0.0f); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f(1.0f, 0.0f, 0.0f); glPushMatrix(); glEnable(GL_DEPTH_TEST); glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE); glShadeModel(GL_FLAT); glLoadIdentity(); gluLookAt(0.0f, 0.0f, 1000.0f, 0.0f, 10.0f, 0.0f, 0.0f, 1.0f, 0.0f); glBegin(GL_TRIANGLES); glVertex3f(-100, 0, 0); glVertex3f(0, 100, 0); glVertex3f(100, 0, 0); glEnd(); glPopMatrix(); glFlush(); }

OnPaint() 함수 작성

Class View > CMFCOpenGLDlg 선택

Properties > Messages > WM_PAINT> <Add>

void CMFCOpenGLDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // 그리기를 위한 디바이스 컨텍스트입니다. SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0); // 클라이언트 사각형에서 아이콘을 가운데에 맞춥니다. int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // 아이콘을 그립니다. dc.DrawIcon(x, y, m_hIcon); } else { CDialogEx::OnPaint(); wglMakeCurrent(m_hDC, m_hRC); GLRenderScene(); SwapBuffers(m_hDC); wglMakeCurrent(m_hDC, NULL); } }

OnDestroy() 함수 작성

Class View > CMFCOpenGLDlg 선택

Properties > Messages > WM_DESTROY > <Add>

void CMFCOpenGLDlg::OnDestroy() { CDialogEx::OnDestroy(); // TODO: Add your message handler code here wglDeleteContext(m_hRC); ::ReleaseDC(m_hWnd, m_hDC); }

빌드 및 실행

Ctrl + Shift + B

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