opengl program as win API menu item

This is a discussion on opengl program as win API menu item within the Game Programming forums, part of the General Programming Boards category; Hi every1: Ok I hope i can be clear on this. I have a program that thoughout last few months ...

  1. #1
    Registered User SAMSAM's Avatar
    Join Date
    Nov 2001
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    218

    opengl program as win API menu item

    Hi every1:

    Ok I hope i can be clear on this.

    I have a program that thoughout last few months ,i have added
    variety of more different features to it.
    it is like an MDI window (it doesnt realy follow MDI protocol,but is
    in the same concept) with more than 140 menu items,that each on their own menu commands like (game, edit, fun, time, ,,,,) ,if chosen will start a new program like:

    (playing musical notes(keyboard), clipboard viewing, playing few graphical cartoons, simple word processor, font manuplation,sys color change, a mini game,a very simple calculator"results
    are funny at times", bitmap DIB viewer, printer option and tons of different dlg boxes and list ,,,,,,,etc)




    i want to set a new menu item to independently open

    a "opengl graphic window" which is very basic (im new to opengl)and just shows a rotating blade on top of a triangle,

    i want to be able to initialize this within the framework of that
    menu command, and close it with another menu item.
    just so i can have an extra feature added to
    my just for fun & "NO PURPOSE"program.

    looking at the opengl programs i have seen up to now ,it seems
    opengl grabs a hold of the frame window its rendering to.

    now can this be done without major changes to the code style of my program . example change getmessage to peekmessage & etc,,, ?if its possible. then i will give it a try .

    cheers!

  2. #2
    Registered User SAMSAM's Avatar
    Join Date
    Nov 2001
    Posts
    218
    Boy im so happy;

    Well i did it and it works fine.
    choose one menu item = opengl graphic.
    choose one menu item = close opengl window.
    and back to the main window.no peekmessage .no exclusive
    opengl window.

    now i havent initialized the rotation yet ,because i want to ask you the best possible root to go about it;

    timer procedure or another way to mimick the continous
    style of peekmessage through my normal window procedure;

    my questions if you be patient with me are:

    1-am i naive or can i use this style to render a small simple game using opengl in my regular window?

    2-is the use of opengl calls within my code efficient and legal
    .i mean(no leakage or behind the scene complications)?

    3-am i deleting and deselecting the rendering context
    in the right place(case 68) or should it be in WM_CLOSE msg?
    i have a bug in my winzip so i couldnt zip the code so i send you
    the main.c this way you see for yoursef the big picture
    . there are 6 other side files & functions needed to execute the program ,that i wont put here due to size. any way the parts about opengl are in 5 different sections headers, WINMAIN, WM_CREATE, WM_SIZE,
    WM_COMMAND , case 67 & case 68(to open and close the
    opengl window.
    //by the way the opengl code sketeton is mainly from opengl game programming book by kevin hawkins .so i stole it.

    again ,sorry about the size.

    Code:
    
    /*------------------------------------------------------------
     Dec 02  
                     Sia k
      ------------------------------------------------------------*/
    #define WIN32_LEAN_AND_MEAN
    #pragma comment(lib, "opengl32.lib")
    #pragma comment(lib, "glu32.lib")
    #pragma comment(lib, "glaux.lib")
    #pragma comment(linker, "/subsystem:windows")
    
    
    //-----------------------------------------------
    #include <commdlg.h>
    
    
    
    
    #define ID_EDIT 100
    #define ID_LIST 101
    #define MAXREAD       8192
    
    #define dattr     (DDL_READWRITE | DDL_READONLY | DDL_HIDDEN | DDL_SYSTEM | 
                       DDL_DIRECTORY | DDL_ARCHIVE  | DDL_DRIVES)
    
    #define dt$$$s      (DT_WORDBREAK | DT_EXPANDTABS | DT_NOCLIP | DT_NOPREFIX)
    WNDPROC lastlist;
    
    #define ID_TIMER 2
    BOOL siachcolor(HWND hwnd);             // header for choosecolor common dlg
    BOOL FontChooseFont(HWND  hwnd);        //choose font
    void FontDeinitialize(void);
    BOOL fontchoosecolor(HWND hwnd);
    void FontInitialize(HWND hwnd);
    HFONT  FontSetFont(HWND hwnd);
    void drawrect(HWND hwnd, int cxclient, int cyclient);        //draw rec
    void FileInitialize (HWND hwnd);
    BOOL FileOpenDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName);
    BOOL filesavedlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName);
    void changedlgprop(HWND h, COLORREF cr);
    HBITMAP fitbitmap(HBITMAP hBitmap1);
    //-----------------------------------------------
    
    #include <windows.h>
    #include <stdio.h>
    #include <string.h>
    #include <stdlib.h>
    #include <ctype.h>
    #include "sia0016.h"
    #include "resource.h"
    #include <commctrl.h>
    //-----------------------opengl headers and g_variables
    #include <gl/gl.h>
    #include <gl/glu.h>
    #include <gl/glaux.h>
    
    float angle = 0.0f;
    
    
    HDC g_HDC;
    //--------------------------
    static   int e = 50;
    HINSTANCE hInstance;
    BOOL password = FALSE;
    
    //-------------------------------opengl pixel format
    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 circlepushbuttonProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
                                      
    BOOL CALLBACK AboutDlg1Proc (HWND hDlg, UINT message,  WPARAM wParam, LPARAM lParam);
    BOOL CALLBACK AboutDlg2Proc (HWND hDlg, UINT message,  WPARAM wParam, LPARAM lParam);                           
    
    BOOL    CALLBACK AboutDlgProc(HWND, UINT, WPARAM, LPARAM) ;
    
    
    LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
    
    
    
    
    int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                        PSTR szCmdLine, int iCmdShow)
    {
    	
         static char szAppName[] = TEXT ("Hello Lovely Sara, Experimental all in one Program") ;
    	   BOOL  done;//opgl
    
         HWND         hwnd ;
         MSG          msg ;
         WNDCLASSEX     wndclass ;
         wndclass.cbSize        = sizeof(wndclass); 
         wndclass.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC ;
         wndclass.lpfnWndProc   = WndProc ;
         wndclass.cbClsExtra    = 0 ;
         wndclass.cbWndExtra    = 0 ;
         wndclass.hInstance     = hInstance ;
         wndclass.hIcon         = LoadIcon (hInstance, MAKEINTRESOURCE(20));
         wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
         wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
         wndclass.lpszMenuName  = NULL ;
         wndclass.lpszClassName = szAppName ;
         wndclass.hIconSm       = LoadIcon(hInstance, MAKEINTRESOURCE(20));
    
         RegisterClassEx(&wndclass);
    
         wndclass.cbSize        = sizeof(wndclass); 
          wndclass.style         = CS_HREDRAW | CS_VREDRAW  | CS_OWNDC ;
         wndclass.lpfnWndProc   = circlepushbuttonProc ;
         wndclass.cbClsExtra    = 0 ;
         wndclass.cbWndExtra    = 0 ;                                    //defining class for custom buttton
         wndclass.hInstance     = hInstance ;
         wndclass.hIcon         = NULL ;
         wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
         wndclass.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1) ;
         wndclass.lpszMenuName  = NULL ;
         wndclass.lpszClassName = TEXT ("circlepushbutton") ;
         wndclass.hIconSm       = NULL;
    
         RegisterClassEx (&wndclass) ;
      
                        
           
         
         
         hwnd = CreateWindow (szAppName,                  // window class name
                              TEXT ("The, Hello Lovely Sara, Experimental all in one program"), 
                              WS_OVERLAPPEDWINDOW,       // window style
                              CW_USEDEFAULT,              // initial x position
                              CW_USEDEFAULT,              // initial y position
                              CW_USEDEFAULT,              // initial x size
                              CW_USEDEFAULT,              // initial y size
                              NULL,                       // parent window handle
                              NULL,                       // window menu handle
                              hInstance,                  // instance handle
                              NULL) ;                     // creation parameters
         
         ShowWindow (hwnd, iCmdShow) ;
         UpdateWindow (hwnd) ;
         
         while (GetMessage (&msg, NULL, 0, 0))
         {
              TranslateMessage (&msg) ;
              DispatchMessage (&msg) ;
         }
         return msg.wParam ;
    }
    
    
    LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
    { 
    static       HGLRC hRC;//opengl
    int          width, height;//opengl
    
    	
    static      HBRUSH hbrush, hb;
                HPEN hpen;
    
    	   
                PAINTSTRUCT ps ;
    			RECT     rect;
                HDC  hdc;
    			static HDC hdcmem;
    static int  cxchar, cychar, cxcaps,  cxclient,n = 0, u, cyclient, i = 0,j = 0,
                y = 0, m = 0, r, 
                x = 0,cxchard, cychard,  cxbuffer, cybuffer;
    static short int g;	       
    	        TEXTMETRIC tm;
    static	    HMENU hmenu, hmenu1,hmpop;
                HGLOBAL  hgbl;
    static      HWND hwndedit, hwndlist, hnextclipowner;
                POINT point;
    static      HINSTANCE hInstance;
    static      HFONT hfont;
    static      PTSTR  phgbl;
    static char name[] = TEXT ("sara");			
    static char *pbuffer = NULL; 
    static char ptext[50], a3[30];	
    static char achar;	 
    static      BOOL bdraw = FALSE, bwrite = FALSE, bclip = FALSE ;
    static      COLORREF  cr; 
                DWORD color[3]; 
    int         aielements[3] = {COLOR_DESKTOP, 
                          COLOR_MENU, 
                                COLOR_WINDOW}; 
    const       DWORD dwresult = RGB(0x3e, 0x7d, 0x77), dwresult1 = RGB(0xba, 0xa8, 0x94);                        // function return value 
    
    static char    buf[256];
                DWORD bufsize; 
    const char  *compinfo[] = {"Computer Name = ", "User Name = ",
                "Path To Windows Directory = ", "Path To Sys Directory = "};
    static char *tempinfo = NULL;
    static char     filename[MAX_PATH], titlename[MAX_PATH] ;
                
                SYSTEMTIME st;
    static      SIZE       size;
     static           LPTSTR lpszSystemInfo; 
    
        
         switch (message)
         {
         case WM_CREATE:
             hInstance = ((LPCREATESTRUCT) lParam) -> hInstance;
    		 DialogBox (hInstance, TEXT("inf"), hwnd, AboutDlg2Proc) ; //password dlg
    		 if(password == TRUE){
              cxchard = LOWORD (GetDialogBaseUnits ()) ;
              cychard = HIWORD (GetDialogBaseUnits ()) ;
              
    		
    	
    	 hwndedit = CreateWindow (TEXT ("edit"), NULL,
                            WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | 
                                       WS_BORDER | ES_LEFT | ES_MULTILINE |
                                       ES_AUTOHSCROLL | ES_AUTOVSCROLL,
                             0, 0, 0, 0, hwnd, (HMENU) ID_EDIT,
                              ((LPCREATESTRUCT) lParam) -> hInstance, NULL);
    	
    	 hwndlist =CreateWindow (TEXT ("listbox"), NULL,
                                  WS_CHILDWINDOW | WS_VISIBLE | LBS_STANDARD | WS_BORDER ,
                                  0, 0, 0, 0,hwnd, (HMENU) ID_LIST,
                                  (HINSTANCE) GetWindowLong (hwnd, GWL_HINSTANCE),
                                  NULL) ;
              
             
                              
    		 
              hmenu = LoadMenu(hInstance, TEXT ("sia0016"));
              SetMenu(hwnd, hmenu);
    		
    		  FontInitialize(hwnd);      //initializing cmmn dlg choose font
    		  FileInitialize (hwnd) ;    ///////////////fileopen dlg
    
    		  hdc = GetDC(hwnd); 
    		  //----------------------- initializing opengl window
    	      g_HDC = hdc;
    
    		SetupPixelFormat(hdc);
    
    		hRC = wglCreateContext(hdc);
    		wglMakeCurrent(hdc ,hRC);
    
            //--------------------------------
    		 
              GetTextMetrics(hdc, &tm);
    		  cxchar = tm.tmAveCharWidth;
    		  cychar = tm.tmHeight + tm.tmExternalLeading;
    		  cxcaps = (tm.tmPitchAndFamily & 1 ? 3 : 2) * cxchar / 2;
              
    		 pbuffer = (char *)malloc(400 * sizeof(char));
              ReleaseDC(hwnd, hdc);
    		
    	  	
    		  return 0;
    		 }
    		 else
    		 SendMessage(hwnd, WM_CLOSE, 0, 0);         //password not correct = close window
    
    
          case WM_SIZE:
    
     
    	   
    		
              
             width = cxclient = LOWORD (lParam) ;
             height = cyclient = HIWORD (lParam) ;
      //----------------------------                  //initializing size for opengl
    		  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;
    
    
    	  case WM_TIMER:
    		  bdraw = !bdraw;
    		
    		  InvalidateRect(hwnd, NULL, FALSE);
    		  return 0;
    
    
    	 case WM_PAINT:
    	   hdc =  BeginPaint (hwnd, &ps) ;
           
    	   GetClientRect (hwnd, &rect) ;
    
    
         
    
    	  
    	   if(n == 3){                                                         //id counter for time menu
    		   GetLocalTime(&st);
    	   wsprintf(ptext, "%.2i:%.2i:%.2i", st.wHour,st.wMinute, st.wSecond);
    	                                                                      //get time & date
    			 TextOut(hdc, 0, 0,ptext,strlen(ptext) );
                 GetDateFormat(LOCALE_SYSTEM_DEFAULT, DATE_LONGDATE, &st, NULL, ptext, sizeof(ptext));
                 TextOut(hdc, 0, 2 * cychar,ptext,strlen(ptext) );
    	   }
    	   if(bclip == TRUE){
    	   
    	   DrawText (hdc, phgbl, -1, &rect, DT_EXPANDTABS) ;          //print clipboard content if bool true
    	   bclip = FALSE;
    	   }
    	   
    	   if(n == 1){
           
    	   if(bdraw = TRUE)
    		drawrect(hwnd, cxclient, cyclient);
    	   
    	   }
    
    
    
    
    	   EndPaint (hwnd, &ps) ;
    	     return 0 ;
    	
        /* case WM_NCPAINT:
          wdc = GetWindowDC(hwnd);
         
          
    	   GetLocalTime(&st);
           SetBkColor(wdc, GetSysColor(COLOR_ACTIVECAPTION));
            //TextOut(wdc, cxclient - 180, 5, a3, wsprintf(a3, "%.2d:%.2d:%.2d",     
    			 // st.wHour, st.wMinute, st.wSecond));
            TextOut(wdc, cxclient - 180, 5, "hello", 5);
    	   GetWindowRect(hwnd, &rc);
    	   InvalidateRect(hwnd, &rc, TRUE);
    	   ReleaseDC(hwnd,wdc);
    		 return 0;
    	 case WM_SETFOCUS:
    		 SetFocus(hwnd);
    		 return 0;*/
    		 
         case WM_KILLFOCUS:
    
    		 SetFocus(hwndedit);
    		 return 0;
    
    	 case WM_CHANGECBCHAIN:
    		 if((HWND)wParam == hnextclipowner)
    		 hnextclipowner = (HWND)lParam;
    		 else if(hnextclipowner)
    		 SendMessage(hnextclipowner, message, wParam, lParam);
    		 return 0;
    
    	 case WM_DRAWCLIPBOARD:
              if (hnextclipowner)
                   SendMessage (hnextclipowner, message, wParam, lParam) ;
              
              InvalidateRect (hwnd, NULL, TRUE) ;
              return 0 ;
    
    
    	 case WM_COMMAND:
           
    			 
          
              
                    
                         
    
                
    
    		 switch(LOWORD (wParam))
    		 {
    		 case 1 :
    			 FileOpenDlg (hwnd, filename, titlename);
    		return 0;
    
    		case 5:
    		SendMessage(hwnd, WM_CLOSE, 0, 0);
    		return 0;
    
            case 6:
    		ExitWindowsEx( EWX_LOGOFF, 0);              
    		return 0;
                                                                    //logoff windows
    		case 11:
    			SendMessage(hwndedit, WM_UNDO, 0, 0);
    			return 0;
    		case 12:
    			SendMessage(hwndedit, WM_CUT, 0, 0);
    			return 0;
    		case 13:
    			SendMessage(hwndedit, WM_COPY, 0, 0);
    			return 0;
    		case 14:
    			SendMessage(hwndedit, WM_PASTE, 0, 0);
    			return 0;
    		case 16:
    			SendMessage(hwndedit, EM_SETSEL, 0, -1);
    			return 0;
    
    		 case 17:
    			 bwrite = TRUE;
    		return 0;
    		 case  18:
    			 bwrite = FALSE;
    		return 0;
    
            case 20:
    			SendMessage(hwndedit, WM_CLEAR, 0, 0);
    			return 0;
    
            case 21:
              hmenu = LoadMenu(hInstance, TEXT ("sia0016"));
              SetMenu(hwnd, hmenu);                              //sub menu back to main menu
    		  return 0;
    
            case 22:
    		  bclip = TRUE;
              hnextclipowner = SetClipboardViewer (hwnd);
              
              
              OpenClipboard (hwnd) ;
             
               hgbl = GetClipboardData (CF_TEXT) ;
                                                                 //  view clipboard  menu
              if (hgbl != NULL)
              {
              phgbl = (PTSTR) GlobalLock (hgbl) ;
              
              GlobalUnlock (hgbl) ;
              }
              
              CloseClipboard (); 
    		  
    		  
    		  return 0;
    
    		case 23:
    		  InvalidateRect(hwnd, NULL, TRUE);               //terminate clip viwer
    		  return 0;
    
    		case 31:
     
               hbrush = CreateSolidBrush(siachcolor(hwnd));
    	       SetClassLong(hwnd, GCL_HBRBACKGROUND, (LONG)hbrush);  //background coloring
    	       InvalidateRect(hwnd, NULL, TRUE);
    	  
           return 0;
    		 case 32:
               m++;
    		   cr = siachcolor(hwndedit);
    	       hb = CreateSolidBrush(cr);
    		   
    		   InvalidateRect(hwndedit, NULL, TRUE);             // choose color for edit
               InvalidateRect(hwndlist, NULL, TRUE);
    		   SetFocus(hwndedit); 
    		 return  0;
    	
    		case 33:
    
             
               color[0] =  siachcolor(hwnd);           //setting desktop color by using siachcolor func 
               SetSysColors(1, &aielements[0], &color[0]); 
            return 0;
    
    		case 34:
    		    SetSysColors(1, &aielements[0], &dwresult);   //setting original desktop color
    			
    	    return 0;
    
    		case 35:
              color[1] =  siachcolor(hwnd);                //setting menu color for system
               SetSysColors(1, &aielements[1], &color[1]); 
    		   
               return 0;
    
    		case 36:
                 SetSysColors(1, &aielements[1], &dwresult1);   //setting original menu color
    			
    		return 0;
    		case 41:
    
    
    	
    			 hdc = GetDC(hwnd);
    	   if(FontChooseFont(hwnd))                         //custom font using choosefont commn dlg
                                          
    		
    		
    	        SelectObject(hdc, FontSetFont(hwnd));
    
    	        SetTextColor(hdc, fontchoosecolor(hwnd));
    	        ReleaseDC(hwnd, hdc);
               r = MessageBox(NULL, "would you like to erase the current window content\'\n' after change of font?","Change Font Msg Box", MB_YESNO); 
     
                                                                                   
              if(r == IDYES)
               InvalidateRect(hwnd, NULL, TRUE);
    		  else
              
    			InvalidateRect(hwnd, NULL, FALSE);
    	     return 0;
    		 case 42:
    	         hdc = GetDC(hwnd);
                 DeleteObject(SelectObject(hdc, GetStockObject(SYSTEM_FONT)));    //choose sys font
    	         SetTextColor(hdc, RGB(0, 0, 0));
                 ReleaseDC(hwnd, hdc);
                 InvalidateRect(hwnd, NULL, TRUE);
    			 return 0;
    		 case 51:
    			 ShowWindow(hwndedit, TRUE);
    			
    			 MoveWindow(hwndedit, 0, 0, cxclient / 2, cyclient / 2, TRUE);//edit open
    			 SetFocus(hwndedit);
            
                
    
    	        return 0;
    		 case 52:
    			 SetFocus(hwnd);
                MoveWindow(hwndedit, 0, 0, 0, 0, TRUE);
    			 ShowWindow(hwndedit, FALSE);                                 //edit close
    			 return 0;
         
    		 case 61:
    			 SetTimer(hwnd, ID_TIMER, 1000, NULL);
    			 n = 1;
    		     return 0;	
    	     case 62:
    			 n = 2;
    			 KillTimer(hwnd, ID_TIMER);
    			 InvalidateRect(hwnd, NULL, TRUE);
    			 return 0;
    
    		 case 63:
                                                     //printing sara with stroke and filled path
    			 hdc = GetDC(hwnd);             
                DialogBox (hInstance, TEXT("info"), hwnd, AboutDlg1Proc) ;
    				
    			 hfont = CreateFont(e, 0, 0, 200, FW_EXTRABOLD, 1, 0, 0, ARABIC_CHARSET,
    	 	    OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, PROOF_QUALITY, DEFAULT_PITCH | FF_ROMAN,
    		    "Times New Roman");
    			 SelectObject(hdc, hfont);
    			 GetTextExtentPoint32(hdc, name, lstrlen(name), &size);
    			 hpen = CreatePen(PS_SOLID,2, RGB(255, 0, 0));
    			 SelectObject(hdc, hpen);
    			 SetBkMode(hdc, TRANSPARENT);
                MessageBox(hwnd, TEXT(" Please Pick The Font Color  of Your Choice"), TEXT("Font Color"), 0);
    		   
    		
    			 
    			 hbrush = CreateSolidBrush(siachcolor(hwnd));
    			 SelectObject(hdc, hbrush);
                 BeginPath(hdc);
    			 TextOut(hdc, (cxclient - size.cx) / 2, (cyclient - size.cy) / 2, name, lstrlen(name));
    			 EndPath(hdc);
                 
    			 StrokeAndFillPath(hdc);                                            
    			 
    			 ReleaseDC(hwnd, hdc);
    			 InvalidateRect(hwnd, NULL, FALSE);
    			 UpdateWindow(hwnd);
    			 DeleteObject(SelectObject(hdc, GetStockObject(BLACK_PEN)));
                 
    			 DeleteObject(hbrush);
    			 return 0;
            case 64:
    			 InvalidateRect(hwnd, NULL, TRUE);
    			 return 0;
    
    		case 65:
    			 n = 4;
               
    			 
    			
                 
     
    		InvalidateRect(hwnd, NULL, FALSE);
    		     return 0;
    
            case 66:
    			 n = 5;
    		
                 InvalidateRect(hwnd, NULL, TRUE);
    			 return 0;
    
           case 67:
    			 
     
    	  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    	  glLoadIdentity();
    	  angle = angle + 0.7f;
    
    	if(angle >= 360.0f)
           angle = 0.0f;
    	   glTranslatef(0.0f, 0.0f, -5.0f);
    
           glColor3f(1.0f, 0.0f, 1.0f);
    	
           glBegin(GL_TRIANGLES);
    
    	   glVertex3f(0.0f, 0.0f, -1.0f);
    	
           glVertex3f(1.0f, -1.0f, 0.0f);
    	   glVertex3f(-1.0f, -1.0f, 0.0f);
    	
    
    	   glEnd();
           glColor3f(1.0f, 0.0f, 0.0f);
    	   glRotatef(angle, 0.0f, 1.0f, 0.0f);
    	
    	
    	   glBegin(GL_QUADS);
    
    	   glVertex3f(1.0f, 0.0f, 0.0f);
    	   glVertex3f(1.0f, 0.2f, 0.0f);
        
           glVertex3f(-1.0f, 0.2f, 0.0f);
    	   glVertex3f(-1.0f, 0.0f, 0.0f);
    	
    	   glEnd();
    
    
    
    	    SwapBuffers(g_HDC);
           break;
           return 0;
    
             case 68:
    			 hdc = GetDC(hwnd);
    	    wglMakeCurrent(hdc, NULL);
    		wglDeleteContext(hRC);
    		if(hdc)
    			ReleaseDC(hwnd, hdc);
    		InvalidateRect(hwnd, NULL, TRUE);
    		UpdateWindow(hwnd);
            break;
            return 0;
    
    
    		 case 71:
                 ShowWindow(hwndlist, TRUE);
    			 MoveWindow(hwndlist, cxchard, cychard * 20,cxchard * 13 + GetSystemMetrics (SM_CXVSCROLL),
                 cychard * 10, TRUE);
    			 SetFocus(hwndlist);                
    			 return 0;
    		 case 72:
    			 ShowWindow(hwndlist, FALSE);
                 MoveWindow(hwndlist, 0, cyclient, 0, cyclient, TRUE);
    			 SetFocus(hwnd);
    			 return 0;
    			
    		 case 81:
    			 if(ID_TIMER)
    				 KillTimer(hwnd, ID_TIMER);
    			 n = 4;                                       //boolian for print authoriz in wm_paint
    			 InvalidateRect(hwnd, NULL, TRUE);
    			 UpdateWindow(hwnd);
    			 
    			 tempinfo =(char *) malloc(255 * sizeof(char));
    			 bufsize = sizeof(buf);
    		     GetComputerName(buf,  &bufsize);                    //getting computername and print it
    
    			 
                 hdc = GetDC(hwnd);
    			
                
    			 sprintf(tempinfo, "%s %s", *(compinfo + 0), buf);
    			 tempinfo[strlen(tempinfo) + 1] = '\0';
    			 SetBkMode(hdc, GetClassLong(hwnd,GCL_HBRBACKGROUND));
                 TextOut(hdc, 0, 0, tempinfo, strlen(tempinfo));
                 tempinfo =(char *) malloc(255 * sizeof(char));
    			 bufsize = sizeof(buf);
    
                 GetUserName(buf, &bufsize);                                         //get user name
                 sprintf(tempinfo, "%s %s", *(compinfo + 1), buf);
                  tempinfo[strlen(tempinfo) + 1] = '\0';
                 TextOut(hdc, 0, 30, tempinfo, strlen(tempinfo));
                 lpszSystemInfo = malloc(255 * sizeof(char));
                  GetWindowsDirectory(lpszSystemInfo, MAX_PATH+1);                    //getting windows directory
    			 //lpszSystemInfo[MAX_PATH+1] = '\0';
                 sprintf(tempinfo, "%s %s", *(compinfo + 2),lpszSystemInfo );
                 tempinfo[strlen(tempinfo) + 1] = '\0';
    			  TextOut(hdc, 0, 60, tempinfo, lstrlen(tempinfo));
                  GetSystemDirectory(lpszSystemInfo, MAX_PATH+1);                    //getting sys dir
                 sprintf(tempinfo, "%s %s", *(compinfo + 2),lpszSystemInfo );
                 tempinfo[strlen(tempinfo) + 1] = '\0';
                 TextOut(hdc, 0, 80, tempinfo, lstrlen(tempinfo));
    			 ReleaseDC(hwnd, hdc);
    			 InvalidateRect(hwnd, NULL, FALSE);
                 free(tempinfo);
    		    return 0;
    		 case 91:
    			 n = 3;
    			 
    			 SetTimer(hwnd, ID_TIMER, 1000, NULL);
    			// PlaySound (TEXT ("alarm.wav"), NULL, SND_FILENAME | SND_ASYNC);          //time date menu
    			 
                 return 0;
    		
    		case 201:
    
                 DialogBox (hInstance, TEXT("infodlg"), hwnd, AboutDlgProc) ;
                  return 0;
              
    		
    
              }
    
    
    		  break;
           
           case WM_QUERYENDSESSION:  
     
         
                r = MessageBox(NULL, "Shut down?","WM_QUERYENDSESSION", MB_YESNO); 
     
                                                                                   // Return TRUE to allow shutdown, FALSE to stop. 
              if(r == IDYES)
                return TRUE;
    		  else
                return FALSE; 
               
    		  break;
    
    			 
          case  WM_CTLCOLOREDIT:
                                                                          //setting the hbrbkgr for edi
       
             SetBkColor((HDC)wParam,m > 0 ? cr: RGB(255, 255, 217));
        	     return (LRESULT) hb;
    		 
    		 
    	 case WM_CTLCOLORLISTBOX:
                                                                          //setting the hbrbkgr for list
    		     SetBkColor((HDC)wParam,m > 0 ? cr: RGB(255, 255, 217));
    		     return (LRESULT) hb;
    		 
    		 
    	 case WM_CHAR:
    			 
    
             
    
    			 if(bwrite == TRUE){
    	    hdc = GetDC(hwnd);
            SelectObject(hdc, GetStockObject(SYSTEM_FIXED_FONT));
     
    	  
          
    	  *(pbuffer + x) = (char) wParam;
    	  *(pbuffer + x + 1) = '\0';
          
    	   
    	     
    	    TextOut(hdc, i * cxchar, j * cychar , pbuffer + x, 1);
    	  
            i++;
    	    x++;
    		
    	    if((char) wParam == ('\r')  || (i * cxchar) >= cxclient ){
    	    j++;		  
    	    i = 0;
    		
              
    	  }
    		
    	     
             InvalidateRect(hwnd, NULL, FALSE);
    		
    		 ReleaseDC(hwnd, hdc);
    			 }
    
    			 
    		  return 0;
    	 case WM_RBUTTONUP:
    		 hmenu1 = LoadMenu(hInstance, TEXT("sia0016sm"));
             
    		 SetMenu(hwnd, hmenu1);
    		  hmenu1 = GetSubMenu(hmenu1, 0);
    		 
    		  point.x = LOWORD (lParam) ;
              point.y = HIWORD (lParam) ;
              ClientToScreen (hwnd, &point) ;
              
              TrackPopupMenu (hmenu1, TPM_RIGHTBUTTON, point.x, point.y, 
                              0, hwnd, NULL) ;
              return 0 ;
    
         case WM_DESTROY:
    		 hdc = GetDC(hwnd);
    		 DeleteObject(SelectObject(hdc, GetStockObject(SYSTEM_FONT)));
             SetBkMode(hdc, OPAQUE);
            
             ReleaseDC(hwnd, hdc);
    		 
    		 
    	 if(pbuffer)
    		 free(pbuffer);
    	     if(ID_TIMER)
    	     KillTimer(hwnd, ID_TIMER);
    		 DeleteObject(hbrush);
    		if(lpszSystemInfo)
    		free(lpszSystemInfo);
    		 DeleteObject(hmenu1);
    		 FontDeinitialize();
    		 DeleteObject(hb);
    		 ChangeClipboardChain(hwnd, hnextclipowner);
    		
    
    		
    	
    
           
    
             PostQuitMessage (0) ;
              return 0 ;
         }
         return DefWindowProc (hwnd, message, wParam, lParam) ;
    }
    
    BOOL CALLBACK AboutDlgProc (HWND hDlg, UINT message, 
                                WPARAM wParam, LPARAM lParam)
    {
    
            
        static   COLORREF cr1, cr2;
    	static HWND h1, h2,ht;
    
    
    
    
         switch (message)
         {
         case WM_INITDIALOG :
    
            h1 = GetDlgItem(hDlg, IDC_S1);        //initz  handle to ctl windows on dlg
    		 h2 = GetDlgItem(hDlg, IDC_S);
          
    	
    
              cr1 = siachcolor(h1);
    		  cr2 = siachcolor(h1);                //choosing color for dlg box 2 ellipses 
    		                                       //any color we want
              return FALSE ;
         case WM_PAINT:
     
             changedlgprop(h1, cr1);
                                                   //changing the ellipses colors
    		 changedlgprop(h2, cr2);
    		
    		 break;
              
         case WM_COMMAND :
              switch (LOWORD (wParam))
              {
              case IDOK :
              case IDCANCEL :
                   EndDialog (hDlg, 0) ;
                   break; 
    		  case 250:
    			  e = 250;
    			  break;
              }
              break ;
         }
    	
       
         return FALSE ;
    }
    
    
    LRESULT CALLBACK circlepushbuttonProc (HWND hwnd, UINT message, 
                                       WPARAM wParam, LPARAM lParam)
    {
         
    static    char      text[40] ;
    static     HBRUSH      hBrush ;
    static    HDC         hdc ;
              PAINTSTRUCT ps ;
    static     RECT        rect ;
    
         POINT point;
         switch (message)
         {
         case WM_PAINT :
    
    
    
    
              GetClientRect (hwnd, &rect) ;
              GetWindowText (hwnd, text, sizeof (text)) ;           //customized push button shape ellipse
                                                                     //color 2
              hdc = BeginPaint (hwnd, &ps) ;
    	     
              
              hBrush = CreateSolidBrush ( RGB(0, 128, 255));
              hBrush = (HBRUSH) SelectObject (hdc, hBrush) ;
    		  Ellipse (hdc, rect.left, rect.top, rect.right, rect.bottom) ;
              SetBkColor (hdc, RGB(0, 128, 255));
              SetTextColor (hdc, RGB(255, 0, 0)) ;
              
              
              DrawText (hdc, text, -1, &rect,
                        DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
              
              DeleteObject (SelectObject (hdc, hBrush)) ;
             
              EndPaint (hwnd, &ps) ;
              return 0 ;
              
         case WM_KEYUP :
              if (wParam != VK_SPACE)
                   break ;
    	 case WM_LBUTTONDOWN:
             hdc = GetDC(hwnd);
    		 point.x = LOWORD(lParam);
    		 point.y = HIWORD(lParam);
             GetClientRect(hwnd, &rect);
    		 if(PtInRect(&rect, point)){
    		 GetWindowText (hwnd, text, sizeof (text)) ;
             hBrush = CreateSolidBrush (RGB(254, 234, 1));
              hBrush = (HBRUSH) SelectObject (hdc, hBrush) ;
             Ellipse (hdc, rect.left, rect.top, rect.right, rect.bottom) ;
            
             
              SetBkColor (hdc, RGB(254, 234, 1));
              SetTextColor (hdc, RGB(128, 0, 255)) ;
              
              
              DrawText (hdc, text, -1, &rect,
                        DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
    DeleteObject (SelectObject (hdc, hBrush)) ;
             
    
             
    	
    	
    		
    		 
    		 }
    	
                                   
    		 ReleaseDC(hwnd, hdc);
    		 return 0;
         case WM_LBUTTONUP :
             SendMessage (GetParent (hwnd), WM_COMMAND,
             GetWindowLong (hwnd, GWL_ID), 0) ;
              return 0 ;
         }
         return DefWindowProc (hwnd, message, wParam, lParam) ;
    }
    BOOL CALLBACK AboutDlg1Proc (HWND hDlg, UINT message, 
                                WPARAM wParam, LPARAM lParam)
    {
    
            
     static   COLORREF cr1, cr2;
    
    
    
    
         switch (message)
         {
         case WM_INITDIALOG :
            
    
        return FALSE ;
      
     
        
                                                   
    	
              
         case WM_COMMAND :
              switch (LOWORD (wParam))
              {
              case IDOK :
              case IDCANCEL :
    			
    			 
    				
                   EndDialog (hDlg, 0) ;
    			  
    			
    				
    		  
                   break; 
    		  case two_hundred:
    			  e = 200;
    			  break;
    		  case two_fifty:
    			  e = 250;
    			  break;
    		  case three_hundred:
    			  e = 300;                              //menu for font size to print sara in 
    			  return 0;
    		  case three_fifty:                         //many sizes using path
    			  e = 350;
    			  break;
    		  case four_hundred:
    			  e = 400;
    			  break;
    		  case four_fifty:
    			  e = 450;
    			  break;
    		  case five_hundred:
    			  e = 500;
    			  break;
    		  case five_fifty:
    			  e = 550;
    			  break;
    		  case six_hundred:
    			  e = 600;
    			  break;
              }
              break ;
         }
    	
       
         return FALSE ;
    }
    
    BOOL CALLBACK AboutDlg2Proc (HWND hDlg, UINT message, 
                                WPARAM wParam, LPARAM lParam)
    {
    
              HWND h3;       
    
              LPSTR pass;
    const char ba[] = "sara";
    
         switch (message)
         {
         case WM_INITDIALOG :
              h3 = GetDlgItem(hDlg, one_thousand);
              SetFocus(h3);
    
        return FALSE ;
      
     
        
                                                   
    	
              
         case WM_COMMAND :
              switch (LOWORD (wParam))
              {
              case IDOK :
              case IDCANCEL :
    		  pass = malloc(20 * sizeof(char));
              GetDlgItemText(hDlg, one_thousand, pass, 20);         //dlg responsible for password verification
    
    	     if(strcmp(pass, ba) == 0)
    	      password = TRUE; 	 
    
    			 free(pass);
                EndDialog (hDlg, 0) ;
    			break;
    			
    		
    }
    				
    		  
                   break; 
    	 }
    	  
    		  
         return FALSE ;
    }

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