AFP_FullScreenPreview Files

AFP_FullScreenPreview - Add preview in fullscreen mode for Affinity Photo
https://afp-fullscreenpreview.sourceforge.io

Full screen preview of your work-in-progress in Affinity Photo (Windows), with the help of a small script.

It works using the AutoHotkey scripting engine, the Windows Clipboard and the IrfanView image viewer.

https://www.autohotkey.com/ (get the 'Current Version', v1.1.x)
https://www.irfanview.com/ (get the 32bit version)

INSTALLATION:
After installing the prerequisites above, extract all files into a new folder somewhere. Click on the script file (AFP_FullScreenPreview.ahk) and a new icon should appear in the System Tray. A shortcut will be created in your Startup folder so the script will start automatically each time you log on. This behavior can be turned off in the .INI file.

USAGE:
With Affinity Photo in the foreground, in the Edit persona with an image open, pressing the hotkey (F11) should 'Copy Flattened' the current selection (or the whole image if there is no current selection) and then attempt to launch IrfanView in fullscreen mode with the preview. 

You can use IrfanView to zoom in (and many other things). When you are done with the preview, press Escape twice (once to exit fullscreen mode, and again to exit IrfanView) to return to your work in Affinity Photo.

NOTE:
* Overwrites the current Clipboard.

* Since 'Copy Flattened' can take some time on very large images (especially with high bit depth and many layers), the script waits as long as it takes, but it asks every 7 seconds or so if you want to cancel the preview. 

* Only works in 'Edit' persona - not 'Tone Mapping', 'Develop' etc

* Will not work if certain dialogs have keyboard focus; simply exit the dialog and try again.

* Preview of >32bit information is down-converted; the preview will have 'only' 16.7M colors.
  (at least this is the case on my system)

CONFIGURATION:
If you run Affinity Photo 2 and IrfanView 32-bit, and have not changed the default hotkeys in Affinity, and your PC's language is set to English, you should not have to make any changes to the .INI file.

If you have Affinity Photo 1, change
 afp_title=Affinity Photo 2
to
 afp_title=Affinity Photo
(or whatever Photo's window title is on your system)

To use 64-bit IrfanView instead, change
 viewer=C:\Program Files (x86)\IrfanView\i_view32.exe
to
 viewer=C:\Program Files\IrfanView\i_view64.exe

OTHER OPTIONS,
including hotkeys and translation - see accompanying .INI file