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var
  h_DC: hDC;
  hRC: HGLRC;                    

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  InitOpenGL;
  h_DC:=GetDC(Handle);
  SetDCPixelFormat(h_DC);
  hRC:=wglCreateContext(h_DC);
  wglMakeCurrent(h_DC,hRC);                    

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  procedure SetDCPixelFormat(Handle: HDC);
  var
    nPixelFormat: GLUint;
  const
    pfd: PIXELFORMATDESCRIPTOR = (
        nSize: sizeof( PIXELFORMATDESCRIPTOR );
        nVersion: 1;
        dwFlags: PFD_DRAW_TO_WINDOW
        or PFD_SUPPORT_OPENGL
        or PFD_DOUBLEBUFFER;
        iPixelType: PFD_TYPE_RGBA;
        cColorBits: 16;
        cRedBits: 0;
        cRedShift: 0;
        cGreenBits: 0;
        cBlueBits: 0;
        cBlueShift: 0;
        cAlphaBits: 0;
        cAlphaShift: 0;
        cAccumBits: 0;
        cAccumRedBits: 0;
        cAccumGreenBits: 0;
        cAccumBlueBits: 0;
        cAccumAlphaBits: 0;
        cDepthBits: 16;
        cStencilBits: 0;
        cAuxBuffers: 0;
        iLayerType: PFD_MAIN_PLANE;
        bReserved: 0;
        dwLayerMask: 0;
        dwVisibleMask: 0;
        dwDamageMask: 0
    );
  begin
    nPixelFormat:=ChoosePixelFormat(h_DC, @pfd);
    SetPixelFormat(h_DC,nPixelFormat,@pfd);
  end;                    

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procedure TForm1.InitGL;
begin
  glClearColor(0,0,0,0);
  glClearDepth(1);
  glDepthFunc(GL_LESS);
  glShadeModel(GL_SMOOTH);
  glEnable(GL_DEPTH_TEST);

  glViewport(0,0,Width,Height);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity;
  gluPerspective(45,Width/Height,1,100);
  glMatrixMode(GL_MODELVIEW);
end;                    

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procedure TForm1.DrawScene;
begin
  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
  glLoadIdentity;
  //Hier wird später die Scene gezeichnet.

  SwapBuffers(h_DC);
end;                    

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procedure TForm1.ApplicationEvents1Idle(Sender: TObject;
  var Done: Boolean);
begin
  DrawScene;
  Done:=False;
end;                    

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glBegin(GL_QUADS);
  //Koordinaten
glEnd;                    

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glBegin(GL_QUADS);
  glVertex3f(1,-1,-5);
  glVertex3f(1,1,-5);
  glVertex3f(-1,1,-5);
  glVertex3f(-1,-1,-5);
glEnd;                    

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glTranslate(0,0,-5);
glBegin(GL_QUADS);
  glVertex3f(1,-1,0);
  glVertex3f(1,1,0);
  glVertex3f(-1,1,0);
  glVertex3f(-1,-1,0);
glEnd;                    

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glTranslate(0,0,-5);
glBegin(GL_QUADS);
  glColor3f(1,0,0);  //Rot
  glVertex3f(1,-1,0);
  glColor3f(1,1,0);  //Gelb
  glVertex3f(1,1,0);
  glColor3f(0,1,0);  //Grün
  glVertex3f(-1,1,0);
  glColor3f(0,0,1);  //Blau
  glVertex3f(-1,-1,0);
glEnd;                    

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var
  RotateX: Single;                    

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glTranslate(0,0,-5);
glRotate(RotateX,1,0,0);
glBegin(GL_QUADS);
  [...]                    

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RotateX:=RotateX + 1;
if RotateX>360 then
  RotateX:=RotateX - 360;                    

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  MyTex: TTextur;                    

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  MyTex:=TTextur.Create('C:\Programme\Delphi\Bla.bmp');                    

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glBegin(GL_QUADS);
  glTexCoord2f(1,0); glVertex3f(1,-1,0);
  glTexCoord2f(1,1); glVertex3f(1,1,0);
  glTexCoord2f(0,1); glVertex3f(-1,1,0);
  glTexCoord2f(0,0); glVertex3f(-1,-1,0);
glEnd;                    

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glEnable(GL_TEXTURE_2D);                    

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[...]
glRotate(RotateX,1,0,0);
MyTex.Bind;
glBegin(GL_QUADS);
  [...]                    

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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, OpenGL12;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
    procedure InitGL; 
    procedure DrawScene;
    procedure ApplicationEvents1Idle(Sender: TObject; var Done: Boolean);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

procedure SetDCPixelFormat(Handle: HDC);

var
  Form1: TForm1;
  h_DC: hDC; 
  hRC: HGLRC;
  
implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
InitOpenGL;
h_DC:=GetDC(Handle);
SetDCPixelFormat(h_DC);
hRC:=wglCreateContext(h_DC);
wglMakeCurrent(h_DC,hRC);
InitGL;
end;

procedure TForm1.ApplicationEvents1Idle(Sender: TObject; 
  var Done: Boolean); 
begin 
  DrawScene; 
  Done:=False; 
end;

procedure TForm1.DrawScene;
begin
  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
  glLoadIdentity;

  glTranslate(0,0,-5);
  glBegin(GL_QUADS);
    glVertex3f(1,-1,0);
    glVertex3f(1,1,0);
    glVertex3f(-1,1,0);
    glVertex3f(-1,-1,0);
  glEnd;
  
  SwapBuffers(h_DC); 
end;

procedure TForm1.InitGL;
begin 
  glClearColor(0,0,0,0);
  glClearDepth(1);
  glDepthFunc(GL_LESS);
  glShadeModel(GL_SMOOTH); 
  glEnable(GL_DEPTH_TEST); 

  glViewport(0,0,Width,Height); 
  glMatrixMode(GL_PROJECTION); 
  glLoadIdentity; 
  gluPerspective(45,Width/Height,1,100); 
  glMatrixMode(GL_MODELVIEW); 
end;

procedure SetDCPixelFormat(Handle: HDC);
var
  nPixelFormat: GLUint;
const
  pfd: PIXELFORMATDESCRIPTOR = (
      nSize: sizeof( PIXELFORMATDESCRIPTOR );
      nVersion: 1;
      dwFlags: PFD_DRAW_TO_WINDOW
      or PFD_SUPPORT_OPENGL
      or PFD_DOUBLEBUFFER;
      iPixelType: PFD_TYPE_RGBA;
      cColorBits: 16;
      cRedBits: 0;
      cRedShift: 0;
      cGreenBits: 0;
      cBlueBits: 0;
      cBlueShift: 0;
      cAlphaBits: 0;
      cAlphaShift: 0;
      cAccumBits: 0;
      cAccumRedBits: 0;
      cAccumGreenBits: 0;
      cAccumBlueBits: 0;
      cAccumAlphaBits: 0;
      cDepthBits: 16;
      cStencilBits: 0;
      cAuxBuffers: 0;
      iLayerType: PFD_MAIN_PLANE;
      bReserved: 0;
      dwLayerMask: 0;
      dwVisibleMask: 0;
      dwDamageMask: 0
  );
begin
    nPixelFormat:=ChoosePixelFormat(h_DC, @pfd); 
    SetPixelFormat(h_DC,nPixelFormat,@pfd); 
  end;

end.                    

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ApplicationEvents1Idle:=application.onEventsidle;                    

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procedure TForm1.FormCreate(Sender: TObject);
begin
InitOpenGL;
h_DC:=GetDC(Handle);
SetDCPixelFormat(h_DC);
hRC:=wglCreateContext(h_DC);
wglMakeCurrent(h_DC,hRC);
InitGL;
ApplicationEvents1Idle := application.onEventsidle;
end;                    

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Application.OnIdle := ApplicationEvents1Idle;                    

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DeviceContext := GetDC (FormMain.Handle);
RenderingContext := CreateRenderingContext (DeviceContext, [opDoubleBuffered], iPixelDepth, 0, 0, 0, 0, TempPal);                    

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//--------------
{$IFNDEF VER140}
procedure RaiseLastOSError;
begin
  RaiseLastWin32Error;
end;
{$ENDIF}
//----------------                    

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type
  TJpegImage = TBitmap                    

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uses
  OpenGL12, SysUtils, QGraphics, Classes;
  // Windows, OpenGL12, SysUtils, Graphics, JPEG, Classes;                    

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type
  TJpegImage = TBitmap;                    

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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, OpenGL12;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
    procedure InitGL;
    procedure DrawScene; 
    procedure ApplicationEvents1Idle(Sender: TObject; var Done: Boolean);
  private
    { Private-Deklarationen }
  public 
    { Public-Deklarationen }
  end;

procedure SetDCPixelFormat(Handle: HDC);

var
  Form1: TForm1; 
  h_DC: hDC;  
  hRC: HGLRC; 
   
implementation 

{$R *.dfm} 

procedure TForm1.FormCreate(Sender: TObject); 
begin 
InitOpenGL; 
h_DC:=GetDC(Handle); 
SetDCPixelFormat(h_DC); 
hRC:=wglCreateContext(h_DC); 
wglMakeCurrent(h_DC,hRC); 
InitGL;
Application.OnIdle := ApplicationEvents1Idle;
end; 

procedure TForm1.ApplicationEvents1Idle(Sender: TObject;  
  var Done: Boolean);  
begin  
  DrawScene;  
  Done:=False;  
end; 

procedure TForm1.DrawScene; 
begin 
  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT); 
  glLoadIdentity;

  glTranslate(0,0,-5); 
  glBegin(GL_QUADS); 
    glVertex3f(1,-1,0); 
    glVertex3f(1,1,0); 
    glVertex3f(-1,1,0); 
    glVertex3f(-1,-1,0); 
  glEnd; 
   
  SwapBuffers(h_DC);  
end;

procedure TForm1.InitGL; 
begin  
  glClearColor(0,0,0,0); 
  glClearDepth(1); 
  glDepthFunc(GL_LESS); 
  glShadeModel(GL_SMOOTH);  
  glEnable(GL_DEPTH_TEST);  

  glViewport(0,0,Width,Height);  
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity;  
  gluPerspective(45,Width/Height,1,100);  
  glMatrixMode(GL_MODELVIEW);  
end; 

procedure SetDCPixelFormat(Handle: HDC); 
var 
  nPixelFormat: GLUint; 
const 
  pfd: PIXELFORMATDESCRIPTOR = ( 
      nSize: sizeof( PIXELFORMATDESCRIPTOR );
      nVersion: 1; 
      dwFlags: PFD_DRAW_TO_WINDOW 
      or PFD_SUPPORT_OPENGL 
      or PFD_DOUBLEBUFFER; 
      iPixelType: PFD_TYPE_RGBA; 
      cColorBits: 16; 
      cRedBits: 0; 
      cRedShift: 0; 
      cGreenBits: 0; 
      cBlueBits: 0; 
      cBlueShift: 0;
      cAlphaBits: 0; 
      cAlphaShift: 0; 
      cAccumBits: 0; 
      cAccumRedBits: 0; 
      cAccumGreenBits: 0; 
      cAccumBlueBits: 0; 
      cAccumAlphaBits: 0; 
      cDepthBits: 16; 
      cStencilBits: 0; 
      cAuxBuffers: 0; 
      iLayerType: PFD_MAIN_PLANE;
      bReserved: 0; 
      dwLayerMask: 0; 
      dwVisibleMask: 0; 
      dwDamageMask: 0 
  ); 
begin 
    nPixelFormat:=ChoosePixelFormat(h_DC, @pfd);  
    SetPixelFormat(h_DC,nPixelFormat,@pfd);
  end;

end.                    

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procedure TForm1.DrawScene; 
begin
  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
  glLoadIdentity;

  glTranslate(0,0,-5);
  glBegin(GL_QUADS);
    glVertex3f(1,-1,0);
    glVertex3f(1,1,0);
    glVertex3f(-1,1,0);
    glVertex3f(-1,-1,0);
  glEnd;

  SwapBuffers(h_DC);
end;                    

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  InitOpenGL;
  h_DC:=GetDC(Handle);
  SetDCPixelFormat(h_DC);
  hRC:=wglCreateContext(h_DC);
  wglMakeCurrent(h_DC,hRC);
  InitGL;                    

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BorderStyle := bsNone;
WindowsState := wsMaximized;                    

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procedure Tmainform.GoToFullScreen(pWidth, pHeight, pBPP, pFrequency: Word);
var
 dmScreenSettings: DevMode;
begin
 // Fenster vor Vollbild vorbereiten
 WindowState := wsMaximized;
 BorderStyle := bsNone;
 ZeroMemory(@dmScreenSettings, SizeOf(dmScreenSettings));
 with dmScreenSettings do
 begin
  dmSize := SizeOf(dmScreenSettings);
  dmPelsWidth := pWidth; // Breite
  dmPelsHeight := pHeight; // Höhe
  dmBitsPerPel := pBPP; // Farbtiefe
  dmDisplayFrequency := pFrequency; // Bildwiederholfrequenz
  dmFields := DM_PELSWIDTH or DM_PELSHEIGHT or DM_BITSPERPEL or DM_DISPLAYFREQUENCY;
 end;
 if (ChangeDisplaySettings(dmScreenSettings, CDS_FULLSCREEN) = DISP_CHANGE_FAILED) then
 begin
  MessageBox(0, 'Konnte Vollbildmodus nicht aktivieren!', 'Error', MB_OK or MB_ICONERROR);
  exit;
 end;
end;                    

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[Fatal Error] Unit1.pas(7): File not found: 'OpenGL12.dcu'