Get_DDB

include vmm.inc

mov     eax, Device_ID
mov     edi, Device_Name
VMMCall Get_DDB
mov     [DDB], ecx
 

Determines whether or not a VxD is installed for the specified device and returns a DDB (Device Description Block) for that device if it is installed. Uses ECX, flags.

• Returns a DDB for the specified device if the function succeeds; otherwise, returns zero.

Device_ID

The device identifier. This parameter can be zero for name-based devices.

Device_Name

An eight-character device name that is padded with blank characters. This parameter is only required if Device_ID is zero. The device name is case-sensitive.