Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 8 GDI Orientation and Transformations

7.6.5 Logical Brushes....................................................................................

The Win32 library provides the LOGBRUSH structure that can be used to create a brush

by specifying its characteristics. LOGBRUSH is defined as follows:

typedef struct tagLOGBRUSH {

UINT lbStyle;

COLORREF lbColor;

LONG lbHatch;

} LOGBRUSH, *PLOGBRUSH;

The lbStyle member variable specifies the style applied on the brush.

The lbColor is specified as a COLORREF value.

The lbHatch value represents the hatch pattern used on the brush.

Here is an example:

void CExoView::OnDraw(CDC* pDC)

{

CExoDoc* pDoc = GetDocument();

ASSERT_VALID(pDoc);

CBrush *pBrush;

CBrush brLogBrush;

LOGBRUSH LogBrush;

LogBrush.lbStyle = BS_HATCHED;

LogBrush.lbColor = RGB(255, 0, 255);

LogBrush.lbHatch = HS_DIAGCROSS;

brLogBrush.CreateBrushIndirect(&LogBrush);

pBrush = pDC->SelectObject(&brLogBrush);

pDC->Rectangle(20, 12, 250, 175);

pDC->SelectObject(pBrush);

}