[Integrated or dedicated gpu (BUS type)]

18 hours ago, Fiery said:

We've never tried to use that value to detect bus type.  What we do is simply go by the GPU type, by using its PCI device ID.  We then have a backend database that indicates whether a certain GPU is integrated or bus-connected (like PCI, AGP, or PCI Express).

Yes, I assumed that you can just check on the database. Thank you for your reply

[Integrated or dedicated gpu (BUS type)]

Hello. I am developing a program for the needs of my organization and one thing remains: it is necessary to determine the type of video card (integrated or not). I rummaged through the whole Internet and did not find a good approach. They even suggest using CPU-Z, which is impossible in my case. I found the following parameter description in the WMI documentation (WIN32_VideoController):

$ProtocolSupported_ReturnValue = 
@{
    1='Other'
    2='Unknown'
    3='EISA'
    4='ISA'
    5='PCI'
    6='ATA/ATAPI'
    7='Flexible Diskette'
    8='1496'
    9='SCSI Parallel Interface'
   10='SCSI Fibre Channel Protocol'
   11='SCSI Serial Bus Protocol'
   12='SCSI Serial Bus Protocol-2 (1394)'
   13='SCSI Serial Storage Architecture'
   14='VESA'
   15='PCMCIA'
   16='Universal Serial Bus'
   17='Parallel Protocol'
   18='ESCON'
   19='Diagnostic'
   20='I2C'
   21='Power'
   22='HIPPI'
   23='MultiBus'
   24='VME'
   25='IPI'
   26='IEEE-488'
   27='RS232'
   28='IEEE 802.3 10BASE5'
   29='IEEE 802.3 10BASE2'
   30='IEEE 802.3 1BASE5'
   31='IEEE 802.3 10BROAD36'
   32='IEEE 802.3 100BASEVG'
   33='IEEE 802.5 Token-Ring'
   34='ANSI X3T9.5 FDDI'
   35='MCA'
   36='ESDI'
   37='IDE'
   38='CMD'
   39='ST506'
   40='DSSI'
   41='QIC2'
   42='Enhanced ATA/IDE'
   43='AGP'
   44='TWIRP (two-way infrared)'
   45='FIR (fast infrared)'
   46='SIR (serial infrared)'
   47='IrBus'
}

Tell me, please, what value will correspond to the integrated video card, and what value - to the dedicated? 

P.S.: When I tried to get the protocol type, both video cards on the laptop return null for this parameter. Are there any other ways to determine the type of video card?