bool Qpixmap::loadFromData ( const QByteArray & data,const char * format = 0,Qt::ImageConversionFlags flags = Qt::AutoColor )
这里的格式是字符串文字,如“PNG”或类似的东西
Qpixmap p;
QByteArray pData;
// fill array with image
if(p.loadFromData(pData,"PNG"))
{
// do something with pixmap
}