

The second picture shows how a 16:10 game looks in any DOSBox-X which have been released to far, with openglnb and false on a 16:9 monitor with 4K. Compare these pictures: the first picture shows how a 16:10 game looks in DOSBox SVN Daum with openglnb and false on a 16:9 monitor with 4K. When it comes to Jazz Jackrabbit, the level parts are in the format 320:199 (640x398, if you run this game in DOSBox with doublescan), and I can not find a format option equivalent to 320:199 (which could be 2560x1592 in my case) in Windows 10.
#Dosbox alttab out return fullscreen windows 10#
Of course, I can set the image format in Windows 10 to 16:10 (2560x1600 in my case) when playing games in this 320x200 resolution, but in games like Epic Pinball, the formats switch from 16:10 (320x200) to 4:3 (320x240), and unfortunately I do not bother to press the Windows button just to change the format corresponding to specific areas in the mentioned game. It seems to me that output=openglnb and aspect=false constantly stretch the image from 16:10 (for example) to 16:9, 21:9, ie depending on which image format Windows 10 or 11 is set to. It is possible I have no idea about this with free stretch.


The free stretch mode is what you see in your original post, which I think applies to almost all outputs except the openglpp and TTF outputs.
