A Flat Splitter Window

Great - but how can I make it more narrow ?

m_cxSplitter    = m_cySplitter    = 15 + 1 + 1;
m_cxBorderShare = m_cyBorderShare = 0;
m_cxSplitterGap = m_cySplitterGap = 15 + 1 + 1;
m_cxBorder      = m_cyBorder      = 1;

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
BOOL CFlatSplitterWnd::BuildFont(CDC* pDC, CFont* pFont, int nFontHeight, bool bBold, bool bItalic)
{
	nFontHeight = -MulDiv(nFontHeight, pDC->GetDeviceCaps(LOGPIXELSY), 72);
	CString sFontName = _T("Arial");

	int   nWeight = (bBold) ? FW_BOLD : FW_NORMAL;
	BYTE  nItalic = (bItalic) ? 1 : 0;

	return pFont->CreateFont(nFontHeight, 0, 0, 0, nWeight, nItalic, 0, 0, DEFAULT_CHARSET,
                             OUT_CHARACTER_PRECIS, CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY,
                             DEFAULT_PITCH | FF_DONTCARE, sFontName);
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
void CFlatSplitterWnd::OnDrawSplitter(CDC* pDC, ESplitType nType, const CRect& rectArg)
{
	if((nType != splitBorder && nType != splitBar) || (pDC == NULL))
	{
		CSplitterWnd::OnDrawSplitter(pDC, nType, rectArg);
		return;
	}

	ASSERT_VALID(pDC);

	switch (nType)
	{
		case splitBorder :
			{
				pDC->Draw3dRect(rectArg, GetSysColor(COLOR_BTNSHADOW), GetSysColor(COLOR_BTNHIGHLIGHT));
			}
			break;
		case splitBar :
		{
			// let the base class have first crack
			pDC->Draw3dRect(rectArg, GetSysColor(COLOR_BTNSHADOW), GetSysColor(COLOR_BTNHIGHLIGHT));

			CFont docFont;
			CFont* pOldFont;
			CBrush newBrush;
			CBrush* pOldBrush;

			// construct and select our font
			BuildFont(pDC, &docFont, 9, false, false);
			pOldFont = pDC->SelectObject(&docFont);

			// make the brush yellow and select it
			newBrush.CreateSolidBrush(RGB(255,255,0));
			pOldBrush = pDC->SelectObject(&newBrush);

			// build our title text
			CString sTitle = "INFO";
			CSize sz = pDC->GetTextExtent(sTitle);

			// get ready to draw our yellow rectangle
			CRect tempRect = rectArg;
			tempRect.DeflateRect(1,1,1,1);

			// we need to get the window rect so we can center our text
			CRect wndRect;
			GetWindowRect(&wndRect);

			// calc start pos for text
			int xPos = (int)((wndRect.Width() - sz.cx) * 0.50);

			// make the text black, and the background (for drawing text) transparent
			pDC->SetTextColor(RGB(0,0,0));
			pDC->SetBkMode(TRANSPARENT);

			// draw our rectangle (uses default black pen)
			pDC->Rectangle(&tempRect);
			// draw our text
			pDC->TextOut(xPos, tempRect.top, sTitle);

			// free the resources
			pDC->SelectObject(pOldBrush);
			newBrush.DeleteObject();
			pDC->SelectObject(pOldFont);

			// now create a brush for ourdown arrows
			newBrush.CreateSolidBrush(RGB(0,0,0));
			pOldBrush = pDC->SelectObject(&newBrush);

			// adjust the rect some more
			tempRect.DeflateRect(0,5,0,4);
			CPoint pts[4];

			// position and draw the left-side arrow
			int x = (int)((tempRect.Width() - sz.cx - 30) * 0.50);
			int y = tempRect.top;
			pts[0] = CPoint(x,      y);
			pts[1] = CPoint(x + 10, y);
			pts[2] = CPoint(x + 5,  y + 5);
			pts[3] = CPoint(x,      y);
			pDC->Polygon(pts, 4);

			// position and draw the right-side arrow
			x = (int)((tempRect.Width() + sz.cx + 15) * 0.50);
			y = tempRect.top;
			pts[0] = CPoint(x,      y);
			pts[1] = CPoint(x + 10, y);
			pts[2] = CPoint(x + 5,  y + 5);
			pts[3] = CPoint(x,      y);
			pDC->Polygon(pts, 4);

			// free the resources
			pDC->SelectObject(pOldBrush);
			newBrush.DeleteObject();
		}
		break;
	}
}