C / C++ / MFC

Sauce! wrote:

I want to overload the appropriate operator such that I can call the following function:
ColourRGB interpolate(ColourRGB &c1, ColourRGB &c2, float pos);

ColourRGB interpolate( ColourRGB c1, ColourRGB c2, float pos )

ColourRGB(const unsigned int &rhs);

ColourRGB(const unsigned int rhs);

void CImageReaderDlg::OnBnClickedButtonLoad()
{
	
	CImage img;
	img.Load(_T("read.tif"));
	int nWidth=img.GetWidth();
	int nHeight=img.GetHeight();
	CClientDC dc(this);
	CString str;
	CPen ps;

	for (double i=nWidth ; i > nWidth/2 ; i--)
	{
		for (double j=nHeight;j>nHeight/2;j--)
		{
			COLORREF clr=img.GetPixel(i,j);
			//Find RGB value
			int Rvalue=GetRValue(clr);
			int Gvalue=GetGValue(clr);
			int Bvalue=GetBValue(clr);
			if(Rvalue == 255 && Gvalue == 255 && Bvalue == 255)
			{
				ps.CreatePen(PS_SOLID,i,RGB(255,0,0));
				dc.SelectObject(&ps);
				dc.MoveTo(i,j);
				dc.LineTo(i,j);
			}
		}
	}
}

rajugis wrote:

img.Load(_T("read.tif"));

rajugis wrote:

ps.CreatePen(PS_SOLID,i,RGB(255,0,0)); dc.SelectObject(&ps); dc.MoveTo(i,j); dc.LineTo(i,j);

rajugis wrote:

when come to the loop ...its showing debug assertion failed !!

rajugis wrote:

and i dont know how to use setpixel function

void CCBIView::OnDraw(CDC* pDC)
{
	CCBIDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	CImage image;
	CPen ps;
	//CClientDC dc(this);
	image.Load (_T("read.tif"));
	int w,h;
	w = image.GetWidth();
	h = image.GetHeight();
	int color;
	COLORREF clr;
	for(int i = 0 ; i < w ; i ++)
	for(int j = 0 ; j < h; j ++)
	{		
			color = image.GetPixel(i,j);
			clr=image.GetPixel(i,j);
			int Rvalue=GetRValue(clr);
			int Gvalue=GetGValue(clr);
			int Bvalue=GetBValue(clr);
			if(Rvalue == 0 && Gvalue == 0 && Bvalue == 0)
			{
				//ps.CreatePen(PS_SOLID,i,RGB(255,0,0));
				pDC ->SetPixel (i,j,color);
			}	
	//		img.SetPixel(i,j,clr);
	
	
	
	}
	// TODO: add draw code for native data here
}