显示问题(过早结贴了,重贴600分不变)

Question

从CStatic派生重载OnPaint()，用IPicture接口,把picture画(Render)上去就ok!

Answer 1

jazzrabbit:
please tell me how to use IPicture

Answer 2

//全局变量
LPPICTURE gpPicture;-------------
CPicture fromthe;
fromthe=this->m_picclip.GetGraphicCell(10);
fromthe.m_lpDispatch->QueryInterface(IID_IPicture,(void **)&(gpPicture));-----------
重载OnPaint():
if(gpPicture)
{
CPaintDC dc(this); 
long hmWidth;
long hmHeight;
gpPicture->get_Width(&hmWidth);
gpPicture->get_Height(&hmHeight);
// convert himetric to pixels
int nWidth= MulDiv(hmWidth,GetDeviceCaps(dc.m_hDC, LOGPIXELSX), HIMETRIC_INCH);
int nHeight= MulDiv(hmHeight, GetDeviceCaps(dc.m_hDC, LOGPIXELSY), HIMETRIC_INCH);
RECT rc;
this->GetClientRect(&rc);
// display picture using IPicture::Render
gpPicture->Render(dc.m_hDC, 0, 0, nWidth, nHeight, 0, hmHeight, hmWidth, -hmHeight, &rc);
}