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Source code

#include <windows.h>
#include <gl/gl.h>

#include <math.h>
#include "viswindow.h"

VisWindow::VisWindow(QWidget *parent)
	: QWidget(parent)
{
	setGeometry(10,20,795,890);
	setVisible(true);

	// Get windnow handler
	hWnd = (HWND)winId();

	//get the device context (DC)
	hDC = GetDC( hWnd );  

	// set the pixel format for the DC
	PIXELFORMATDESCRIPTOR pfd;
	int format;
	ZeroMemory( &pfd, sizeof( pfd ) );
	pfd.nSize = sizeof( pfd );
	pfd.nVersion = 1;
	pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
	pfd.iPixelType = PFD_TYPE_RGBA;
	pfd.cColorBits = 24;
	pfd.cDepthBits = 16;
	pfd.iLayerType = PFD_MAIN_PLANE;
	format = ChoosePixelFormat( hDC, &pfd );
	SetPixelFormat( hDC, format, &pfd );
	
	// enable the render context (RC)
	hRC = wglCreateContext( hDC );
	wglMakeCurrent( hDC, hRC );
}