try:
Qt Code: 
  1. QObject::connect(ui->listWidget, SIGNAL(currentRowChanged(int)), &m_imageviewer, SLOT(picindex(int)));
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i'm not sure that will help, you have some modifications (at least ComicView from error and View:: in code) after you got the error you told us, so if that won't help post the updated code and error message.

Also are you sure that you want to connect when unzipdone (instead of for example in the ComicView constructor)?
And make sure that m_imageviewer stays alive as long as you need it to receive the changes to selection.