User manual
VIVOTEK
254 - User's Manual
exposurelevel:hidden:, 
or others 
<x>: nonnegative integer 
<product dependent>
The format is "Affect API 
name":"Policy":"Value" 
"Policy" can be categorized into 
following groups: 
- (disabled) : UI turns grey and users 
can't select it.   
- (unchanged) : UI keeps the status as 
before and   
user can't change it. 
- (hidden) : UI is hidden. 
- (fixed) : UI is fixed to one selection or 
value. 
- (ranged) : UI is fixed to multiple 
selections or values. 
"Affect API name" can be described in 
hierarchy, such as 
"exposurewin.mode.blc:disabled:" 
which means blc exposure window is 
disabled. API name can be one word as 
well, such as "exposurelevel:fixed:6" 
which means exposurelevel is fixed to 
level 6. 
"Value" can be a nonnegative integer 
or NULL. 
"-" means no feature is affected. 
* Only available when manual is listed 
in "capability_image_c<n>_ 
exposure_modetype" and 
"capability_image_c<n>_ 
exposure_mode" is 1. 
* We support this parameter when the 
version number (httpversion) is equal 
or greater than 0302a. 
exposure_levelrange -,
"0,12"
0/7 Available range for 
"videoin_c<n>_exposurelevel" 










