Draw something with GDI

gdi-draw-something.cpp

void CMyView::DrawSomething(CDC* pDC, bool m) {
	CPen newPen(PS_SOLID, VariablePenWidth(5), RGB(0, 0, 0));
	CPen* oldPen = pDC->SelectObject(&newPen);

	CBrush brush;
	brush.CreateSolidBrush(RGB(128, 224, 255));
	CBrush* oldBrush = (CBrush*)pDC->SelectObject(&brush);

	int prevMode = SetGraphicsMode(pDC->m_hDC,GM_ADVANCED);
	XFORM Xform, XformOld;
	GetWorldTransform(pDC->m_hDC,&XformOld);
	
	Xform.eM11 = (FLOAT) 1.0;
	Xform.eM12 = (FLOAT) 0.0;
	Xform.eM21 = (FLOAT) 0.0;
	Xform.eM22 = (FLOAT) 1.0;
	Xform.eDx  = (FLOAT) 0.0;
	Xform.eDy  = (FLOAT) 0.0;
	
	SetWorldTransform(pDC->m_hDC,&Xform);
	
	// Drawing code goes here...

	SetWorldTransform(pDC->m_hDC,&XformOld);
	SetGraphicsMode(pDC->m_hDC,prevMode);

	pDC->SelectObject(oldPen);
	newPen.DeleteObject();

	pDC->SelectObject(oldBrush);
	oldBrush->DeleteObject();
}