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OpenGL and Fullscreen Issue with Rendering Line
Author : michaelp2234 Post Date : 2008-12-07 08:35 Posts : 2	Hi, I was doing a basic app and was having fun drawing some points, and lines, but I noticed that when I switch to fullscreen that the line won't appear, but the points will. I used all the code from this site to setup a win32 opengl app.
Author : michaelp2234 Post Date : 2008-12-07 08:38 Posts : 2	// filename: main.cpp // date: 27 Nov 2008 // author: Michael Peacock // sources: ZeusCMD, Grant James. www.zeuscmd.com //////////////////////////////////////////////////// // Notes // //////////////////////////////////////////////////// /************************************************ MOVING OBJECTS WITH MOUSE In order to use the mouse to change an objects coordinates, you may need to convert the WindowCoordinates to World Coordinates, this includes X and Y. ************************************************/ #include "glutil.h" OpenGL opengl; /////////////////////////////////////////////////// // Prototypes // /////////////////////////////////////////////////// // OpenGL Functions bool init(); void display(); void idle(); void resize(int w, int h); /////////////////////////////////////////////////// // Implementation // /////////////////////////////////////////////////// bool init() { int w = opengl->getWidth(), h = opengl->getHeight(); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Enable States glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LEQUAL); glClearDepth(1.0); //glShadeModel(GL_SMOOTH); return true; } void display() { glClear(GL_COLOR_BUFFER_BIT\|GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt( 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); glColor3f(0.93f, 0.93f, 1.0f); glBegin(GL_LINES); glVertex2f(0.0f, 0.0f); glVertex2f(10.0f,10.0f); glEnd(); glFlush(); } void idle() { } void resize(int w, int h) { if(h==0) h = 1; glMatrixMode(GL_PROJECTION); glLoadIdentity(); glViewport(0, 0, w, h); gluOrtho2D(-10.0f, 10.0f, -10.0f, 10.0f); //gluPerspective(45.0, w/h, 1.0, 100.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) { opengl = OpenGL::create(); //initiate an object of our class opengl->setInitFunc(init); opengl->setDisplayFunc(display); opengl->setIdleFunc(idle); opengl->setResizeFunc(resize); if(!opengl->initGL("OpenGL Window", 600, 600, false, 32)){ return 1; } opengl->runMessageLoop(); return 0; }

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