**fScan Reference Manual, Chapter 4 (Variables): globals **

===== Global variables =====
Global fScan variables are always defined. They can be character strings or numbers.

Summary table of global variables:\\
|[[jvs:fscan:manual:chapter4:accept|accept]]|[[jvs:fscan:manual:chapter4:active|active]]|[[jvs:fscan:manual:chapter4:alert|alert]]|[[jvs:fscan:manual:chapter4:allscale|allscale]]|[[jvs:fscan:manual:chapter4:autoview|autoview]]|[[jvs:fscan:manual:chapter4:color|color]]|
|[[jvs:fscan:manual:chapter4:colormap|colormap]]|[[jvs:fscan:manual:chapter4:convolve|convolve]]|[[jvs:fscan:manual:chapter4:copymaskbits|copymaskbits]]|[[jvs:fscan:manual:chapter4:datafile|datafile]]|[[jvs:fscan:manual:chapter4:datapath|datapath]]|[[jvs:fscan:manual:chapter4:datasetname|datasetname]]|
|[[jvs:fscan:manual:chapter4:datatype|datatype]]|[[jvs:fscan:manual:chapter4:design|design]]|[[jvs:fscan:manual:chapter4:dicomtemplate|dicomtemplate]]|[[jvs:fscan:manual:chapter4:discard|discard]]|[[jvs:fscan:manual:chapter4:displayscale|displayscale]]|[[jvs:fscan:manual:chapter4:filename|filename]]|
|[[jvs:fscan:manual:chapter4:flirtmtx|flirtmtx]]|[[jvs:fscan:manual:chapter4:font|font]]|[[jvs:fscan:manual:chapter4:fscanlog|fscanlog]]|[[jvs:fscan:manual:chapter4:glossary|glossary]]|[[jvs:fscan:manual:chapter4:hrdelay|hrdelay]]|[[jvs:fscan:manual:chapter4:icon|icon]]|
|[[jvs:fscan:manual:chapter4:imageformat|imageformat]]|[[jvs:fscan:manual:chapter4:imagename|imagename]]|[[jvs:fscan:manual:chapter4:inset|inset]]|[[jvs:fscan:manual:chapter4:linkedfile|linkedfile]]|[[jvs:fscan:manual:chapter4:list|list]]|[[jvs:fscan:manual:chapter4:loc|loc]]|
|[[jvs:fscan:manual:chapter4:lutscale|lutscale]]|[[jvs:fscan:manual:chapter4:mainflag|mainflag]]|[[jvs:fscan:manual:chapter4:mainwidth|mainwidth]]|[[jvs:fscan:manual:chapter4:map|map]]|[[jvs:fscan:manual:chapter4:maptype|maptype]]|[[jvs:fscan:manual:chapter4:margins|margins]]|
|[[jvs:fscan:manual:chapter4:matrix|matrix]]|[[jvs:fscan:manual:chapter4:menuflag|menuflag]]|[[jvs:fscan:manual:chapter4:name|name]]|[[jvs:fscan:manual:chapter4:number|number]]|[[jvs:fscan:manual:chapter4:outformat|outformat]]|[[jvs:fscan:manual:chapter4:overwrite|overwrite]]|
|[[jvs:fscan:manual:chapter4:param|param]]|[[jvs:fscan:manual:chapter4:pdigmfile|pdigmfile]]|[[jvs:fscan:manual:chapter4:quitconfirm|quitconfirm]]|[[jvs:fscan:manual:chapter4:quitstr|quitstr]]|[[jvs:fscan:manual:chapter4:reg|reg]]|[[jvs:fscan:manual:chapter4:rtdxyzval|rtdxyzval]]|
|[[jvs:fscan:manual:chapter4:rtdxyzwin|rtdxyzwin]]|[[jvs:fscan:manual:chapter4:schedule|schedule]]|[[jvs:fscan:manual:chapter4:showpanes|showpanes]]|[[jvs:fscan:manual:chapter4:showtext|showtext]]|[[jvs:fscan:manual:chapter4:showzoom|showzoom]]|[[jvs:fscan:manual:chapter4:string|string]]|
|[[jvs:fscan:manual:chapter4:subtype|subtype]]|[[jvs:fscan:manual:chapter4:surfsubject|surfsubject]]|[[jvs:fscan:manual:chapter4:sysvarb|sysvarb]]|[[jvs:fscan:manual:chapter4:taskbar|taskbar]]|[[jvs:fscan:manual:chapter4:taskname|taskname]]|[[jvs:fscan:manual:chapter4:tempdir|tempdir]]|
|[[jvs:fscan:manual:chapter4:text2flag|text2flag]]|[[jvs:fscan:manual:chapter4:textflag|textflag]]|[[jvs:fscan:manual:chapter4:thumbsize|thumbsize]]|[[jvs:fscan:manual:chapter4:topblank|topblank]]|[[jvs:fscan:manual:chapter4:xml|xml]]

====String variables====
|**Name**|**Description** |
|[[jvs:fscan:manual:chapter4:user|user]]|Name of current user|
|[[jvs:fscan:manual:chapter4:allscale|allscale]]| |
|[[jvs:fscan:manual:chapter4:computer|computer]]|Name of local computer]
|[[jvs:fscan:manual:chapter4:copymaskbits|copymaskbits]]| |
|[[jvs:fscan:manual:chapter4:curdir|curdir]]| The current working directory|
|[[jvs:fscan:manual:chapter4:fscandir|fscandir]]| The name of the fScan home directory|
|[[jvs:fscan:manual:chapter4:hostname|hostname]]|Name of host (if network connected)|
|[[jvs:fscan:manual:chapter4:hrdelay|hrdelay]]| |
|[[jvs:fscan:manual:chapter4:mainflag|mainflag]]| Integer flag controlling Main menu display options|
|[[jvs:fscan:manual:chapter4:mainwidth|mainwidth]]| Width of Main menu data set name display|
|[[jvs:fscan:manual:chapter4:margins|margins]]| Window horizontal and vertical margins|
|[[jvs:fscan:manual:chapter4:overwrite|overwrite]]| File overwrite control flag|
|[[jvs:fscan:manual:chapter4:peekstr|peekStr]]| Interactive commands to execute at fScan start-up]]
|[[jvs:fscan:manual:chapter4:prevwin|prevwin]]| The name of the previous window|
|[[jvs:fscan:manual:chapter4:quitstr|quitStr]]| Interactive commands to execute when fScan terminates|
|[[jvs:fscan:manual:chapter4:showpanes|showpanes]]| Number of vertical panes in Tiled display mode|
|[[jvs:fscan:manual:chapter4:showzoom|showzoom]]| Default window zoom factor|
|[[jvs:fscan:manual:chapter4:subjectdir|subjectdir]]| The name of the current subject directory|
|[[jvs:fscan:manual:chapter4:subjectname|subjectname]]| The name of the current subject|
|[[jvs:fscan:manual:chapter4:thisevents|thisevents]]| The name of the current events|
|[[jvs:fscan:manual:chapter4:thispdigm|thispdigm]]| The name of the current pdigm file|
|[[jvs:fscan:manual:chapter4:thiswin|thiswin]]| The name of the current window|

**Note:** Some string variables can be modified by adding a number after the name. See [[jvs:fscan:manual:chapter4:thiswin|Thiswin]] for an example of how to use such number modifiers to see the data variable in different formats.

====Number variables====
|**Name**|**Description** |
|[[jvs:fscan:manual:chapter4:autoview|autoview]]|Default window configuration flags|
|[[jvs:fscan:manual:chapter4:]]| |

**See Also:**\\
[[jvs:fscan:manual:chapter4|Variables]],
[[jvs:fscan:manual:chapter2:if|If command]],
[[jvs:fscan:manual:chapter2:set|Set command]]

[[jvs:fscan|fScan Home]],
[[jvs:fscan:manual|fScan Manual]],
[[jvs:fscan:manual:help|Manual Help]]