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详细说明：在单文档框架结构的背景窗口上显示图案。重载视图OnEraseBkgnd函数，添加代码：if(!m_bAnimatedBkgnd)
pDC->StretchBlt(0,0,
rcClient.right-rcClient.left,
rcClient.bottom-rcClient.top,
&dcMem,
0,0,
bm.bmWidth,
bm.bmHeight,
SRCCOPY)
else
{
int x=0
int y=0
while(y<rcClient.bottom-rcClient.top)
{
while(x<rcClient.right-rcClient.left)
{
pDC->BitBlt(x,y,
bm.bmWidth,
bm.bmHeight,
&dcMem,
0,0,
SRCCOPY)
x+=bm.bmWidth
}
x=0
y+=bm.bmHeight
}
}