XnView Software

Hello,
I'm trying to take a screenshot in Doom 3 (1.3.1) using XnView (Tools-Capture screen Hotkey), but I only get a gray screen...

try to remove alpha?

what is "alpha"?

'Image>Remove alpha channel'

xnview wrote: Thu Jan 11, 2024 7:48 am 'Image>Remove alpha channel'

'Image>Remove alpha channel' is inactive

In Crysis2 XnView also cannot get screenshot.
Maybe XnView is simply not capable of taking screenshots in games?

I can't get the hotkey processed from XnView Classic inside games. I assign F11 or Shift-F11, choose Desktop as the capture source, and no file is created. It works from within Windows GUI.

Many recent games use what is called "deferred rendering". They put the image into an intermediate buffer for further treatment. Using competing screen capture software, I cannot capture anything from Euro Truck Simulator 2 when "scaling" is engaged. What it does is make certain portions of the screen bigger, and the downsize them to increase quality. Capture also doesn't work for very old games that output a paletted image. They usually have an internal hotkey that understands the screen format and spits out a TGA/PCX somewhere. They may hook onto Print Screen or another key next to it.

Windows native Print Screen also works/doesn't work the same way. It works with games produced between 1997 and 2010, including those that have normal fixed-function hardware anti-aliasing activated. Maybe specialized gaming software like Fraps or Open Broadcaster know some tricks. After all, people stream most games over the Internet.