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| #include <windows.h>
#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glut.h>
HGLRC hRC=NULL;// Rendering Context
HDC hDC=NULL; //Device Context
HWND hWnd=NULL;
HINSTANCE hInstance;
bool active=TRUE;
bool fullscreen=TRUE;
char* Msgc_Release_Of_DC_And_RC_Failed = "Release Of DC And RC Failed.";
WCHAR Msgw_[256 ];
LPCWSTR Msgu_Release_Of_DC_And_RC_Failed;
char* Msgc_Shutdown_Error = "Shutdown Error";
LPCWSTR Msgu_Shutdown_Error;
char* Msgc_Release_Device_Context_Failed = "Release Device Context Failed.";
LPCWSTR Msgu_Release_Device_Context_Failed;
char* Msgc_Release_Rendering_Context_Failed = "Release Rendering Context Failed.";
LPCWSTR Msgu_Release_Rendering_Context_Failed;
char* Msgc_Could_Not_Release_hWnd = "Could Not Release hWnd.";
LPCWSTR Msgu_Could_Not_Release_hWnd;
char* Msgc_OpenGL = "OpenGL";
LPCWSTR Msgu_OpenGL;
char* Msgc_Could_Not_Unregister_Class = "Could Not Unregister Class.";
LPCWSTR Msgu_Could_Not_Unregister_Class;
char* Msgc_Failed_To_Register_The_Window_Class = "Failed To Register The Window Class.";
LPCWSTR Msgu_Failed_To_Register_The_Window_Class;
char* Msgc_ERROR = "ERROR";
LPCWSTR Msgu_ERROR;
char* Msgc_Fullscreen_Not_Supported = "The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?";
LPCWSTR Msgu_Fullscreen_Not_Supported;
char* Msgc_NeHe_GL = "NeHe GL";
LPCWSTR Msgu_NeHe_GL;
char* Msgc_Program_Will_Now_Close = "Program Will Now Close";
LPCWSTR Msgu_Program_Will_Now_Close;
char* Msgc_Window_Creation_Error = "Window Creation Error.";
LPCWSTR Msgu_Window_Creation_Error;
char* Msgc_Cant_Create_GL_Device = "Can't Create A GL Device Context.";
LPCWSTR Msgu_Cant_Create_GL_Device;
char* Msgc_Cant_Find_PixelFormat = "Can't Find A Suitable PixelFormat.";
LPCWSTR Msgu_Cant_Find_PixelFormat;
char* Msgc_Cant_Set_PixelFormat = "Can't Set The PixelFormat.";
LPCWSTR Msgu_Cant_Set_PixelFormat;
char* Msgc_Cant_Create_GL_Rendering_Context = "Can't Create A GL Rendering Context.";
LPCWSTR Msgu_Cant_Create_GL_Rendering_Context;
char* Msgc_Cant_Activate_GL_Rendering_Context = "Can't Activate The GL Rendering Context.";
LPCWSTR Msgu_Cant_Activate_GL_Rendering_Context;
char* Msgc_Initialization_Failed = "Initialization Failed.";
LPCWSTR Msgu_Initialization_Failed;
char* Msgc_Run_FullScreenMode = "Would You Like To Run In Fullscreen Mode?";
LPCWSTR Msgu_Run_FullScreenMode;
char* Msgc_StartFullScreen = "Start FullScreen?";
LPCWSTR Msgu_StartFullScreen;
char* Msgc_Lesson1 = "Start FullScreen?";
LPCWSTR Msgu_Lesson1;
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
void Conversion_MsgsChaineUnicode()
{
MultiByteToWideChar
(CP_ACP, 0,
Msgc_Release_Of_DC_And_RC_Failed,
strlen(Msgc_Release_Of_DC_And_RC_Failed)+1,
Msgw_,
sizeof(Msgw_)/sizeof(Msgw_[0])
);
Msgu_Release_Of_DC_And_RC_Failed=Msgw_;
}
int InitGL(GLvoid)
{
glShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
return TRUE;
}
int DrawGLScene(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
return TRUE;
}
GLvoid ReSizeGLScene(GLsizei width, GLsizei height)
{
glViewport(0,0,width,height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
GLvoid KillGLWindow(GLvoid) // Properly Kill The Window
{
if (fullscreen)
{
ChangeDisplaySettings(NULL,0);
ShowCursor(TRUE);
}
if (hRC)
{
if (!wglMakeCurrent(NULL,NULL))
{
MessageBox(NULL,Msgu_Release_Of_DC_And_RC_Failed,Msgu_Shutdown_Error,MB_OK | MB_ICONINFORMATION);
}
if (!wglDeleteContext(hRC))
{
MessageBox(NULL,Msgu_Release_Rendering_Context_Failed,Msgu_Shutdown_Error,MB_OK | MB_ICONINFORMATION);
}
hRC=NULL;
}
if (hDC && !ReleaseDC(hWnd,hDC))
{
MessageBox(NULL,Msgu_Release_Device_Context_Failed,Msgu_Shutdown_Error,MB_OK | MB_ICONINFORMATION);
hDC=NULL;
}
if (hWnd && !DestroyWindow(hWnd))
{
MessageBox(NULL,Msgu_Could_Not_Release_hWnd,Msgu_Shutdown_Error,MB_OK | MB_ICONINFORMATION);
hWnd=NULL;
}
if (!UnregisterClass(Msgu_OpenGL,hInstance))
{
MessageBox(NULL,Msgu_Could_Not_Unregister_Class,Msgu_Shutdown_Error,MB_OK | MB_ICONINFORMATION);
hInstance=NULL;
}
}
BOOL CreateGLWindow(/*char* title*/LPCWSTR title, int width, int height, int bits, bool fullscreenflag)
{
GLuint PixelFormat;
WNDCLASS wc;
DWORD dwExStyle;
DWORD dwStyle;
RECT WindowRect;
WindowRect.left=(long)0;
WindowRect.right=(long)width;
WindowRect.top=(long)0;
WindowRect.bottom=(long)height;
fullscreen=fullscreenflag;
hInstance = GetModuleHandle(NULL);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = Msgu_OpenGL;
if (!RegisterClass(&wc))
{
MessageBox(NULL,Msgu_Failed_To_Register_The_Window_Class,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (fullscreen)
{
DEVMODE dmScreenSettings;
memset(&dmScreenSettings,0,sizeof(dmScreenSettings));
dmScreenSettings.dmSize=sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bits;
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL,Msgu_Fullscreen_Not_Supported,Msgu_NeHe_GL,MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
{
fullscreen=FALSE;
}
else
{
MessageBox(NULL,Msgu_Program_Will_Now_Close,Msgu_ERROR,MB_OK|MB_ICONSTOP);
return FALSE;
}
}
}
if (fullscreen)
{
dwExStyle=WS_EX_APPWINDOW;
dwStyle=WS_POPUP;
ShowCursor(FALSE);
}
else
{
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle=WS_OVERLAPPEDWINDOW;
}
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);
if (!(hWnd=CreateWindowEx( dwExStyle,
Msgu_OpenGL,
title,
dwStyle |
WS_CLIPSIBLINGS |
WS_CLIPCHILDREN,
0, 0,
WindowRect.right-WindowRect.left,
WindowRect.bottom-WindowRect.top,
NULL,
NULL,
hInstance,
NULL)))
{
KillGLWindow();
MessageBox(NULL,Msgu_Window_Creation_Error,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
static PIXELFORMATDESCRIPTOR pfd=
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
bits, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(hDC=GetDC(hWnd))) // getting Device Context
{
KillGLWindow();
MessageBox(NULL,Msgu_Cant_Create_GL_Device,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd))) //find a pixel format
{
KillGLWindow();
MessageBox(NULL,Msgu_Cant_Find_PixelFormat,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if(!SetPixelFormat(hDC,PixelFormat,&pfd)) //setting the pixel format
{
KillGLWindow();
MessageBox(NULL,Msgu_Cant_Set_PixelFormat,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(hRC=wglCreateContext(hDC))) //get a Rendering Context.
{
KillGLWindow();
MessageBox(NULL,Msgu_Cant_Create_GL_Rendering_Context,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if(!wglMakeCurrent(hDC,hRC))
{
KillGLWindow();
MessageBox(NULL,Msgu_Cant_Activate_GL_Rendering_Context,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
ShowWindow(hWnd,SW_SHOW);
SetForegroundWindow(hWnd);
SetFocus(hWnd);
ReSizeGLScene(width, height);
if (!InitGL())
{
KillGLWindow();
MessageBox(NULL,Msgu_Initialization_Failed,Msgu_ERROR,MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
return TRUE;
}
// end of the function
int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
BOOL done=FALSE;
Conversion_MsgsChaineUnicode();
if (MessageBox(NULL,Msgu_Run_FullScreenMode,Msgu_StartFullScreen,MB_YESNO|MB_ICONQUESTION)==IDNO)
{
fullscreen=FALSE;
}
if (!CreateGLWindow(Msgu_Lesson1,640,480,16,fullscreen))
{
return 0;
}
while(!done)
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if (msg.message==WM_QUIT)
{
done=TRUE;
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
if (active)
{
DrawGLScene();
SwapBuffers(hDC);
}
}
}
KillGLWindow();
return (msg.wParam);
} |
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