Question

vc++6.0的LineTo函数，如何设置让它画出非黑色的线？

dc.MoveTo(m_rFaceRegion.left,m_rFaceRegion.top);
dc.LineTo(m_rFaceRegion.right,m_rFaceRegion.top);
dc.LineTo(m_rFaceRegion.right,m_rFaceRegion.bottom);
dc.LineTo(m_rFaceRegion.left,m_rFaceRegion.bottom);
dc.LineTo(m_rFaceRegion.left,m_rFaceRegion.top);
说得详细些，谢谢！

Answer 1

CPen penNew;
penNew.CreatePen(PS_SOLID, 1, RGB(255,0,0));
CPen* Old = dc.SelectObject(&penNew);
//画线
dc.SelectObject(Old);
参见MSDN的函数
BOOL CreatePen( int nPenStyle, int nWidth, COLORREF crColor );

Answer 2

对CPen对像设置颜色。