1.windows编程常用

1.画线

 HDC hdc;
 hdc = ::GetDC(m_hWnd);
 ::MoveToEx(hdc, , , NULL);
 ::LineTo(hdc, , );

2.填充矩形

 HDC hdc;
 hdc = ::GetDC(m_hWnd);
 //::Rectangle(hdc, 0, 0, 1000, 1000);
 CRect rt(, , , );
 CBrush pNewBrush(RGB(, , ));
 FillRect(hdc, rt, pNewBrush);

3.画矩形

 HDC hdc;
 hdc = ::GetDC(m_hWnd);

 Rectangle(hdc, x1, y1,x2, y2);