User manual
VIVOTEK
218 - User's Manual
Bit 7 => External or built-in PT;   
0(built-in), 1(external) 
windowless  <boolean>  0/7  Indicate whether to support windowless 
plug-in. 
evctrlchannel  <boolean>  0/7  Indicate whether to support HTTP tunnel for 
event/control transfer. 
joystick  <boolean>  0/7  Indicate whether to support joystick control. 
remotefocus 
<Not recommended to use 
this> 
0,<positive integer> 0/7  An 4-bit integer, which indicates the supportive 
application of remotefocus.   
If the value of this parameter is larger than 0, 
it means that the camera supports 
remotefocus function. 
bit 0 => Indicate whether to support both 
zoom and focus function. 
bit 1 => Only support zoom function. 
bit 2  => Only support focus function. 
bit 3    => Currently, this is a reserved bit, and 
the default value is 0. 
* It's strongly non-recommended to use this.
* This is reserved for compatibility and will not 
be used after the version number (httpversion) 
is equal or greater than 0400a. 
* We replace "capability_remotefocus" with " 
capability_image_c0_remotefocus". 
npreset  0, <positive 
integer> 
0/7  Number of preset locations 
eptz  0, <positive 
integer> 
0/7  For "nvideoin" = 1, the definition is as 
following: 
A 32-bits integer, each bit can be set 
separately as follows: 
Bit 0 => 1st stream supports ePTZ or not. 
Bit 1 => 2nd stream supports ePTZ or not, and 
so on. 
For nvideoin >= 2, the definition is different: 
First all 32 bits are divided into groups for 
channel. 










