1.
open project > settings (alternativly u can press Alt+F7) and open the "Link" tab. in "object/library modules" u add:
Code:
OpenGL32.lib GLaux.lib GLu32.lib

click ok, we are done here.

2.
open your client.cpp and go to the top. where the vars are declared u add
Code:

HDC      hDC=NULL;
GLuint      base;
 

3.
now we have to add a function to build the ogl font list by adding this function (i recommend it near the other DrawHudString(..) functions):
Code:

GLvoid BuildFont(GLvoid)      
{
   hDC=wglGetCurrentDC();
   HFONT   font;                              
   HFONT   oldfont;                           
   
   base = glGenLists(96);                        
   
   font = CreateFont(   -10 , // font size e.g. 10, 12 but with a minus!               
      0,  // font width (0 is autowidth, using a value will set the width for each character)            
      0,                        
      0,                        
      FW_MEDIUM, // this is the style, plz see above                  
      FALSE,                     
      FALSE,                     
      FALSE,                     
      ANSI_CHARSET,
         
      OUT_TT_PRECIS,               
      CLIP_DEFAULT_PRECIS,         
      ANTIALIASED_QUALITY, // font quality, see above         
      FF_DONTCARE|DEFAULT_PITCH,      
      "Verdana"); // font type, just add the name here, e.g. Arial, Tahoma, ... every font u have installed is possible
   
   oldfont = (HFONT)SelectObject(hDC, font);           
   wglUseFontBitmaps(hDC, 32, 96, base);            
   SelectObject(hDC, oldfont);                     
   DeleteObject(font);                           
}

the font style can be:
Code:
FW_THIN
FW_EXTRALIGHT
FW_LIGHT
FW_NORMAL
FW_MEDIUM
FW_SEMIBOLD
FW_BOLD
FW_EXTRABOLD
FW_HEAVY
 

th quality can be:
Code:
DEFAULT_QUALITY
DRAFT_QUALITY
PROOF_QUALITY
NONANTIALIASED_QUALITY
ANTIALIASED_QUALITY
 

(all following functions go above)

4.
this function we need to delete the font in memory:
Code:

GLvoid KillFont(GLvoid)               
{
   glDeleteLists(base, 96);
}

5.
now we add the print function:
Code:

GLvoid glPrint(const char *fmt, ...)               
{
   char      text[256];                        
   va_list      ap;                              
   
   if (fmt == NULL)                           
      return;                                 
   
   va_start(ap, fmt);                           
   vsprintf(text, fmt, ap);                  
   va_end(ap);                                 
   glPushAttrib(GL_LIST_BIT);                     
   glListBase(base - 32);                        
   glCallLists(strlen(text), GL_UNSIGNED_BYTE, text);   
   glPopAttrib();                              
}
 

6.
... and the function to draw the text like we use AdminMod font when drawing a text:
Code:

void DrawOglText(int x, int y, int r, int g, int b, char *text)
{
   float fr = (float) r/255.0f;
   float fg = (float) g/255.0f;
   float fb = (float) b/255.0f;
   
   glDisable(GL_TEXTURE_2D);
   glColor4f(fr,fg,fb,1.0f);
   glRasterPos2f(x,y);
   glPrint(text);
   glEnable(GL_TEXTURE_2D);
}
 

7.
to draw a text we just use this function same way we use DrawHudString:
Code:

DrawOglFont(cvar.test_x,cvar.test_y,120,190,250,"This is my OpenGL text!");
 
int Initialize (cl_enginefunc_t *pEnginefuncs, int iVersion)
{
             ...

   if(firstInitialize)
   {
                                ...
      BuildFont();
                                ...
   }
}