SetDCPenColor怎么使用?

Question

SetDCPenColor应该怎么使用?为什么我在VC2003中使用时提示不是CDC类的函数,提示和MSDN上都说有这个函数.

Answer 1

COLORREF SetDCPenColor(
  HDC hdc,          // handle to DC
  COLORREF crColor  // new pen color
);

Answer 2

SelectObject(hdc,GetStockObject(DC_PEN));
SetDCPenColor(hdc,RGB(00,0xff,00);
Rectangle(0,0,20,20);
SetDCPenColor(hdc,RGB(00,00,0xff));
Rectangle(0,0,20,20)// The brush color can be changed in a similar manner. SetDCPenColor 
// and SetDCBrushColor can be used interchangeably with GetStockObject 
// to change the current color.  SelectObject(hDC,GetStockObject(DC_BRUSH));
SetDCBrushColor(hDC,0x0) // Provides the same flexibility as:SelectObject(hDC,GetStockOBject(BLACK_BRUSH));// It is not necessary to call DeleteObject to delete stock objects

Answer 3

void CImportView::OnDraw(CDC* pDC)
{
CImportDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
pDC->SetDCPenColor(RGB(255,0,0));
// TODO: 在此处为本机数据添加绘制代码}
编译提示
d:\Import\ImportView.cpp(54): error C2039: “SetDCPenColor” : 不是“CDC”的成员

Answer 4

MFC Library Reference   CDC::SetDCPenColor
Header: Declared in Wingdi.h; include Windows.h.
Library: Use Gdi32.lib.

Answer 5

注意：Included in Windows 2000 and later.#if (_WIN32_WINNT >= 0x0500) COLORREF GetDCBrushColor() const;
COLORREF SetDCBrushColor(COLORREF crColor); COLORREF GetDCPenColor() const;
COLORREF SetDCPenColor(COLORREF crColor);#endif
所以，要设置：#define _WIN32_WINNT = 0x0500