I almost had to get a tissue wiping of my tears of happiness, My thanks extends for the decennia to come. I have no idea how i slipped and passed by the borland tutorials on NEHE, but thanks again JEFF Molofee for helping me out on this.
For Any Aspiring OpenGL Code Wannabe Beginner here’s the cpp.code
[cppcode]
//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include <gl/gl.h>
#include <gl/glu.h>
#include <float.h>
#include “MainForm.h”
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource ".dfm"
TForm1 Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent Owner)
: TForm(Owner)
{
Application->OnIdle = IdleLoop;
_control87(MCW_EM, MCW_EM);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::IdleLoop(TObject, bool& done)
{
done = false;
wglMakeCurrent(m_hDC, m_hRC);
RenderGLScene();
SwapBuffers(m_hDC);
wglMakeCurrent(m_hDC, NULL);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
SetWindowStats(640, 480, 16);
m_hDC = GetDC(Handle);
SetPixelFormatDescriptor();
m_hRC = wglCreateContext(m_hDC);
wglMakeCurrent(m_hDC, m_hRC);
// Necessary to set up before InitGL
FormResize(NULL);
InitGL();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormDestroy(TObject *Sender)
{
if(BorderStyle == bsNone)
ChangeDisplaySettings(NULL,0);
ReleaseDC(Handle, m_hDC);
wglMakeCurrent(m_hDC, NULL);
wglDeleteContext(m_hRC);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::SetPixelFormatDescriptor()
{
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
24, // Color buffer
0,0,0,0,0,0,
0,0,
0,0,0,0,0,
32, // Depth buffer
0, // Stencil buffer
0,
PFD_MAIN_PLANE,
0,
0,0,0
};
m_iPixelFormat = ChoosePixelFormat(m_hDC, &pfd);
SetPixelFormat(m_hDC, m_iPixelFormat, &pfd);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormResize(TObject *Sender)
{
wglMakeCurrent(m_hDC, m_hRC);
glViewport(0, 0, ClientWidth, ClientHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Calculate The Aspect Ratio Of The Window
gluPerspective(45.0, static_cast<double>(ClientWidth) /
static_cast<double>(ClientHeight),
0.1,100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
wglMakeCurrent(m_hDC, NULL);
}
//---------------------------------------------------------------------------
bool fastcall TForm1::SetWindowStats(int iWidth, int iHeight, int iColor_)
{
ClientWidth = iWidth_;
ClientHeight = iHeight_;
// Check for full screen
if(Application->MessageBox("Would You Like To Run In Fullscreen Mode?",
"Start FullScreen?",
MB_YESNO|MB_ICONQUESTION)==IDYES)
{
// Switch screen resolution to the same as the form
DEVMODE dmScreenSettings; // Device Mode
memset(&dmScreenSettings,0,sizeof(dmScreenSettings)); // Makes Sure Memory's Cleared
dmScreenSettings.dmSize=sizeof(dmScreenSettings); // Size Of The Devmode Structure
dmScreenSettings.dmPelsWidth = iWidth_; // Selected Screen Width
dmScreenSettings.dmPelsHeight = iHeight_; // Selected Screen Height
dmScreenSettings.dmBitsPerPel = iColor_; // Selected Bits Per Pixel
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
{
return false;
}
else
{
BorderStyle = bsNone;
Left = 0;
Top = 0;
}
}
return true;
}
//---------------------------------------------------------------------------
bool __fastcall TForm1::InitGL()
{
wglMakeCurrent(m_hDC, m_hRC);
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
wglMakeCurrent(m_hDC, NULL);
return TRUE; // Initialization Went OK
}
//---------------------------------------------------------------------------
void __fastcall TForm1::RenderGLScene()
{
glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0); glMatrixMode(GL_MODELVIEW); glClearColor(0.0, 0.0, 0.0, 0.0); glClear(GL_COLOR_BUFFER_BIT); glColor3f(1.0, 1.0, 1.0); glBegin(GL_POLYGON); glVertex3f(0.25, 0.25, 0.0); glVertex3f(0.75, 0.25, 0.0); glVertex3f(0.75, 0.75, 0.0); glVertex3f(0.25, 0.75, 0.0); glEnd(); // Done Drawing The Quad
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormKeyPress(TObject *Sender, char &Key)
{
if(Key == VK_ESCAPE)
Close();
}
//---------------------------------------------------------------------------
[/cppcode]
And for those who are still doubting here is the header file along with it.
HEADER FILE
[cppcode]
#ifndef MainFormH
#define MainFormH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed Components
void __fastcall FormCreate(TObject *Sender);
void __fastcall FormDestroy(TObject *Sender);
void __fastcall FormResize(TObject *Sender);
void __fastcall FormKeyPress(TObject *Sender, char &Key);
private: // User declarations
HDC m_hDC;
HGLRC m_hRC;
int m_iPixelFormat;
bool __fastcall InitGL();
bool __fastcall SetWindowStats(int iWidth_, int iHeight_, int iColor);
public: // User declarations
__fastcall TForm1(TComponent* Owner);
void __fastcall IdleLoop(TObject*, bool&);
void __fastcall RenderGLScene();
void __fastcall SetPixelFormatDescriptor();
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif
[/cppcode]
It actually works!!!
, all you have to do is
