Windows screen Saver OpenGL template

Visual Studio 2013 Screen saver opengl templates

ScreenSaver.cpp

#define Vc_extralean#include <windows.h> #include <commctrl.h> #include <scrnsave.h> #include < time.h> #include <math.h> #include <string> #include <time.h> #include "resource.h" #include &LT;GL \glu.h> #include <gl\GL.h> #pragma comment (lib, "Opengl32.lib") #pragma comment (lib, "Glu32.lib") #pragma Comment (lib, "Scrnsavw.lib") #pragma comment (lib, "Comctl32.lib") bool Setupopengl (); void Killgl (); void Drawglscene (); HDCHDC = NULL; HGLRCHRC = NULL; Hwndhwnd = NULL; Hinstancehinstance;int Utimer; LONG WINAPI Screensaverproc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM) {//Handle screen Saver message switch (message) {case Wm_cre ATE://Create a screen saver form message First Run HWND = hwnd; Setupopengl ();//Set Timer (interval is 16 milliseconds, in order to refresh 60 times per minute (1000/60 = +) Utimer = SetTimer (hwnd, 1, +, NULL); return 0;case WM_ERASEBKGND: Clear screen protection background//OpenGL does not use return 0;case wm_timer://timer message drawglscene (); return 0;case wm_destroy://Destroy KillTimer (hwnd, Utimer); KILLGL (); PostQuitMessage (0); return 0;} Return Defscreensaverproc (hwnd, message, wparam, lparam);} BOOL WINAPI Screensaverconfiguredialog (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM) {return true;} BOOL WINAPI registerdialogclasses (HANDLE hmodule) {return true;} BOOL Setupopengl () {gluint pixelformat;int width;int height;width = GetDeviceCaps (GetDC (NULL), horzres); height = GetDeviceCaps (GetDC (NULL), vertres); Rectwindowrect; Windowrect.left = (long) 0; Windowrect.right = (long) width; Windowrect.top = (long) 0; Windowrect.bottom = (long) height;//set OpenGL context Staticpixelformatdescriptor 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, 0,16, 0,0,pfd_main_plane,0,0, 0, 0};if (!) ( HDC = GetDC (hWnd))) {KILLGL (); MessageBox (NULL, Text ("Can ' t Create A GL Device Context."), Text ("ERROR"), MB_OK | mb_iconexclamation); return FALSE;} if (! ( PixelFormat = Choosepixelformat (HDC, &AMP;PFD))) {KILLGL (); MessageBox (NULL, Text ("Can ' t Find A suitable PixelFormat."), Text ("ERROR"), MB_OK | MB_iconexclamation); return FALSE;} if (! Setpixelformat (HDC, PixelFormat, &AMP;PFD)) {KILLGL (); MessageBox (NULL, Text ("Can ' t Set the PixelFormat."), Text ("ERROR"), MB_OK | mb_iconexclamation); return FALSE;} if (! ( HRC = Wglcreatecontext (HDC))) {KILLGL (); MessageBox (NULL, Text ("Can ' t Create A GL Rendering Context."), Text ("ERROR"), MB_OK | mb_iconexclamation); return FALSE;} if (!wglmakecurrent (HDC, HRC)) {KILLGL (); MessageBox (NULL, Text ("Can ' t Activate the GL Rendering Context."), Text ("ERROR"), MB_OK | mb_iconexclamation); return FALSE;} Perspective Matrix if (height = = 0) {height = 1;} Glviewport (0, 0, width, height); Glmatrixmode (gl_projection); glloadidentity (); Gluperspective (45.0f, (glfloat) Width/ (glfloat) height, 0.1f, 100.0f); Glmatrixmode (Gl_modelview); glloadidentity ();//Initialize OpenGL some of the parameters Glshademodel (gl_smooth ); Glclearcolor (0.0f, 0.0f, 0.0f, 0.5f), Glcleardepth (1.0f), glenable (gl_depth_test); Gldepthfunc (gl_lequal); Glhint ( Gl_perspective_correction_hint, gl_nicest); return TRUE;} void Killgl (glvoid) {ChangedisplaysettiNGS (NULL, 0);//If the Switch back to the Desktopif (HRC) {//Does We have A Rendering Context? 
Wglmakecurrent (null, NULL);//Release the DC and RC Contextswgldeletecontext (HRC);//Delete the RCHRC = null;//Set RC to Null}releasedc (HWnd, HDC);//Release the Dc}void drawglscene () {Glclear (Gl_color_buffer_bit | Gl_depth_buffer_bit); glloadidentity (); Glclear (Gl_color_buffer_bit | Gl_depth_buffer_bit); glloadidentity (); Gltranslatef ( -1.5f, 0.0f, -6.0f); Glbegin (gl_triangles); glvertex3f (0.0f, 1.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 0.0f), glvertex3f (1.0f, -1.0f, 0.0f), Glend (); Gltranslatef (3.0f, 0.0f, 0.0f); Glbegin (Gl_quads), glvertex3f ( -1.0f, 1.0f, 0.0f), glvertex3f (1.0f, 1.0f, 0.0f), glvertex3f (1.0f, -1.0f, 0.0f); glvertex3f ( -1.0f, -1.0f, 0.0f); Glend (); Swapbuffers (HDC);}

Template code hosted in Https://github.com/tiancode/windows_opengl_screensaver_template

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Windows screen Saver OpenGL template