How to increase size of DOSBox window

Question

I am running Turbo C on DOSBox in Ubuntu 12 04   The problem is that two black stripes are coming on either of screen  I want to remove them     My computer is a Dell Studio 15z with screen resolution 1366x768  I don t have a problem even if distortion occurs    Relevant part of my dosbox conf file    sdl  fullscreen true fulldouble false fullresolution 1366x768 windowresolution 1366x768 output overlay autolock true sensitivity 100 waitonerror true priority higher normal mapperfile mapper-0 74 map usescancodes true

User · Answer

Here s how to change the dosbox conf file in Linux to increase the size of the window   I actually DID what follows  so I can say it works  in 32-bit PCLinuxOS fullmontyKDE  anyway    The question s answer is in the  conf file itself   You find this file in Linux at  home  username   dosbox    In Konqueror or Dolphin  you must first check  Hidden files  or you won t see the folder   Open it with KWrite superuser or your fav editor    Save the file with another name like  dosbox-0 74original conf  to preserve the original file in case you need to restore it  Search on  resolution  and carefully read what the conf file says about changing it   There are essentially two variables   resolution and output   You want to leave fullresolution alone for now   Your question was about WINDOW  not full   So look for windowresolution  see what the comments in conf file say you can do   The best suggestion is to use a bigger-window resolution like 900x800  which is what I used on a 1366x768 screen   but NOT the actual resolution of your machine  which would make the window fullscreen  and you said you didn t want that    Be specific  replacing the  windowresolution original  with  windowresolution 900x800  or other dimensions   On my screen  that doubled the window size just as it does with the max Font tab in Windows Properties  for the exe file  as you ll see below the      marks  32-bit Windows doesn t need Dosbox     Then  search on  output   and as the instruction in the conf file warns  if and only if you have  hardware scaling   change the default  output surface  to something else  he then lists the optional other settings   I changed it to  output overlay    There s one other setting to test   aspect   Search the file for  aspect   and change the  false  to  true  if you want an even bigger window   When I did this  the window took up over half of the screen   With  false  left alone  I had a somewhat smaller window  I use widescreen monitors  whether laptop or desktop  maybe that s why    So after you ve made the changes  save the file with the original name of dosbox-0 74 conf     Then  type dosbox at the command line or create a Launcher  in KDE  this is a right click on the desktop  with the command dosbox   You still have to go through the mount command  i e   mount c  c  123 if that s the location and file you ll execute    I m sure there s a way to make a script  but haven t yet learned how to do that

User · Answer

Looking again at your question  I think I see what s wrong with your conf file   You set   fullresolution 1366x768 windowresolution 1366x768  That s why you re getting the letterboxing  black on either side    You ve essentially told Dosbox that your screen is the same size as your window  but your screen is actually bigger  1600x900  or higher  per the Googled specs for that computer   So the  difference  shows up in black   So you either should change fullresolution to your actual screen resolution  or revert to fullresolution original default  and only specify the window resolution   So now I wonder if you really want fullscreen  though your question asks about only a window   For you are getting a window  but you sized it short of your screen  hence the two black stripes  letterboxing    If you really want fullscreen  then you need to specify the actual resolution of your screen   1366x768 is not big enough   The next issue is  what s the resolution of the program itself  It won t go past its own resolution   So if the program game is  natively  say 1280x720  HD   then your window resolution setting shouldn t be bigger than that  remember  it s fixed not dynamic when you use AxB as windowresolution    Example   DOS Lotus 123 will only extend eight columns and 20 rows   The bigger the Dosbox  the bigger the text  but not more columns and rows   So setting a higher windowresolution for that  only results in bigger text  not more columns and rows   After that you ll have letterboxing   Hope this helps you better

User · Answer

For using DOSBox with SDL  you will need to set or change the following    sdl  windowresolution 1280x960 output opengl   Here is three options to put those settings    Edit user s default configuration  for example  using vi     dosbox -printconf  home USERNAME  dosbox dosbox-0 74 conf   vi    dosbox -printconf     dosbox  For temporary resize  create a new configuration with the three lines above  say newsize conf     dosbox -conf newsize conf   You can use -conf to load multiple configuration and or with -userconf for default configuration  for example     dosbox -userconf -conf newsize conf   snip  --- CONFIG Loading primary settings from config file  home USERNAME  dosbox dosbox-0 74 conf CONFIG Loading additional settings from config file newsize conf  snip   Create a dosbox conf under current directory  DOSBox loads it as default    DOSBox should start up and resize to 1280x960 in this case   Note that you probably would not get any size you desired  for instance  I set 1280x720 and I got 1152x720

User · Answer

go to dosbox installation directory  on my machine that is C  Program Files  x86  DOSBox-0 74    as you see the version number is part of the installation directory name  run  DOSBox 0 74 Options bat  the script starts notepad with configuration file  here change  windowresolution 1600x800  output ddraw    the resolution can t be changed if output surface - that s the default     safe configuration file changes

[dosbox] How to increase size of DOSBox window?

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