Draw exactly 1 pixel width line using C/C++ and WinApi

I am trying to draw the line using C/C++ code and Win API functions. For the specific reason I need to have exactly 1 pixel line width, but what I am getting on the screen is completely different. Depending on the ways of Pen/Brush settings it could be either 2 or 3 pixels wide line and never 1. Just for the test I’ve tried to draw 3 pixels line and as a result getting 5 pixels. The same story with other kind of drawing primitives: rounded rectangles, rectangles, ellipses etc. Is there any way to disable such shadow bounding around drawn lines? Code sample of drawing function is below.

void DisplayDrawings (HDC hDC, HWND hWnd)
{
 LOGBRUSH       stLogBrush; 
 RECT       rRect       = {0,0,0,0};
 HBITMAP        hBitmap     = NULL;
 HBRUSH     hBrush      = NULL;
 HGDIOBJ        hOldBrush       = NULL;  
 HGDIOBJ        hOldPen     = NULL;
 HPEN       hPen            = NULL;      
 BOOL       bB_Result       = FALSE;
 UINT       bBrushByBits [8];
 int            iRightPos       = 0;
 int            iLeftPos        = 30;
 int            iLineY      = 30;
 int            iDrawStep       = 10;   
 int            i           = 0;


#ifndef RGBA
    #define RGBA(r,g,b,a)        ((COLORREF)( (((DWORD)(BYTE)(a))<<24) |     RGB(r,g,b) ))
#endif
 SetBkMode (hDC, OPAQUE);
 bB_Result              = GetClientRect(hWnd, &rRect);
 if (bB_Result == FALSE)
    {
     retu;
    }
 iRightPos              = rRect.right - 30 - 1;

 // Line 1. Draw 1 pixel Line using standard brush/pen. 

 hPen                   = CreatePen (PS_SOLID,1, RGB(255, 0,0));
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 iLineY                 += iDrawStep;
 // Result - line with 2 pixels width   
 // Line 2. Draw 1 pixel Line using standard brush/pen, but setting pen width to "0".  CreatePen API says: "If nWidth is zero, the pen is a single pixel wide, regardless of the current transformation"
 hPen                   = CreatePen (PS_SOLID,0, RGB(255, 0,0));
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 iLineY                 += iDrawStep;
 // Result - line with 3 pixels width
 // Line 3. Draw 1 pixel as above, but set current brush to NULL
 hOldBrush              = SelectObject (hDC, GetStockObject(NULL_BRUSH));
 if (hOldBrush == NULL)
    {
     retu;
    }
 hPen                   = CreatePen (PS_SOLID,0, RGB(255, 0,0));
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 SelectObject (hDC, hOldBrush);
 iLineY                 += iDrawStep;
 // Result - line with 2 pixels width
 // Line 4. Draw 3 pixel Line using standard brush/pen
 hPen                   = CreatePen (PS_SOLID,3, RGB(255, 0,0));
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 iLineY                 += iDrawStep;
 // Result - line with 5 pixels width
  // Line 5. Draw 3 pixel as above, but set current brush to NULL
 hOldBrush              = SelectObject (hDC, GetStockObject(NULL_BRUSH));
 if (hOldBrush == NULL)
    {
     retu;
    }
 hPen                   = CreatePen (PS_SOLID,3, RGB(255, 0,0));
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 SelectObject (hDC, hOldBrush);
 iLineY                 += iDrawStep;
 // Result - line with 5 pixels width
 // Line 6. Draw 1 pixel line by creating own pen with monochrome 8x8 brush. Result is 3  
int k = 0;
 for(i = 0; i < 8; i++)
    {
     bBrushByBits [i]       = 0x00;
    }
 hBitmap                    = CreateBitmap(8, 8, 1, 1, (LPBYTE)bBrushByBits); 
 if (hBitmap == NULL)
    {
     retu;
    }
 stLogBrush.lbColor         = RGBA(255,0,0,0);
 stLogBrush.lbHatch         = (ULONG_PTR) hBitmap; 
 stLogBrush.lbStyle         = BS_PATTERN;   

 hPen                   = ExtCreatePen (PS_GEOMETRIC, 3, &stLogBrush, 0, NULL); 
 hOldPen                    = SelectObject (hDC, hPen);
 if (hOldPen == NULL)
    {
     retu;
    }
 MoveToEx (hDC, iLeftPos,iLineY,NULL);
 LineTo (hDC,iRightPos,iLineY);
 SelectObject (hDC, hOldPen);
 DeleteObject (hPen);
 DeleteObject (hBitmap);
 // Result - line with 2 pixels width

}

Thanks in advance