tgp饥荒人物mod大全:那位大哥知道：如何在C++的MFC中实现改变单文档字体大小的方法不？小弟急用！在线等！谢谢啊！！！！！！

void CEx05aView::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo)
{
pDC->SetMapMode(MM_ANISOTROPIC);
pDC->SetWindowExt(1440, 1440);
pDC->SetViewportExt(pDC->GetDeviceCaps(LOGPIXELSX),
-pDC->GetDeviceCaps(LOGPIXELSY));

}
//CEx05aView.H中
private:
void ShowFont(CDC* pDC, int& nPos, int nPoints);
////////////////////////////////////////////////////
void CEx05aView::ShowFont(CDC* pDC, int& nPos, int nPoints)
{
TEXTMETRIC tm;
CFont fontText;
CString strText;
CSize sizeText;

fontText.CreateFont(-nPoints * 20, 0, 0, 0, 400, FALSE, FALSE, 0,
ANSI_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, "Arial");
CFont* pOldFont = (CFont*) pDC->SelectObject(&fontText);
pDC->GetTextMetrics(&tm);
TRACE("points = %d, tmHeight = %d, tmInternalLeading = %d,"
" tmExternalLeading = %d\n", nPoints, tm.tmHeight,
tm.tmInternalLeading, tm.tmExternalLeading);
strText.Format("This is %d-point Arial", nPoints);
sizeText = pDC->GetTextExtent(strText);
TRACE("string width = %d, string height = %d\n", sizeText.cx,
sizeText.cy);
pDC->TextOut(0, nPos, strText);
pDC->SelectObject(pOldFont);
nPos -= tm.tmHeight + tm.tmExternalLeading;
}

void CEx05aView::OnDraw(CDC* pDC)
{
int nPosition = 0;

for (int i = 6; i <= 24; i += 2) {
ShowFont(pDC, nPosition, i);
}
TRACE("LOGPIXELSX = %d, LOGPIXELSY = %d\n",
pDC->GetDeviceCaps(LOGPIXELSX),
pDC->GetDeviceCaps(LOGPIXELSY));
TRACE("HORZSIZE = %d, VERTSIZE = %d\n",
pDC->GetDeviceCaps(HORZSIZE),
pDC->GetDeviceCaps(VERTSIZE));
TRACE("HORZRES = %d, VERTRES = %d\n",
pDC->GetDeviceCaps(HORZRES),
pDC->GetDeviceCaps(VERTRES));
}
上边的方法和MICROSOFT WORD 使用的方法是一样的.