DOpus 12 has inbuilt image viewers. Is it possible to use another, external viewer (IrfanView), instead please?
Do you mean you want it to open its own separate window when you double-click an image in Opus?
Or do you mean you want IrfanView to be inside the viewer pane within the Opus window?
I am not fussed where IrfanView opens. What I would like to happen is that when I double click an image file, that the file is opened with IrfanView as it does with Explorer. DOpus is great but I am stuck in my ways,
See here: