Hello!

I've been testing PicView on macOS and appreciate its speed. However, I've encountered an issue when attempting to open images using the "Open With" context menu.

When I select an image and choose "Open With" → "PicView.app", the application launches either as a blank window or displays a previously opened image (depending on the application settings). The selected image does not open.

Steps to Reproduce

1. Locate an image file on macOS
2. Right-click the image to open the context menu
3. Select "Open With"
4. Choose "PicView.app" from the list

Expected Behavior

The selected image should open and be displayed within the PicView application

Actual Behavior

PicView launches, but the selected image is not opened. Instead, a blank window appears or a previously viewed image is displayed (depends on the settings).