VMI_CMD_QUERYCHAININFO - Syntax

Description: 

VMI_CMD_QUERYCHAININFO is unique to VMAN (there is no corresponding 
function in the Graphics Hardware Interface). This function is called to 
obtain a pointer to the video chain information, which contains 
information about every GRADD currently loaded. 

Each GRADDINFO structure contains information, such as capabilities and 
mode information, for a single GRADD. The CHAININFO structure contains a 
pointer to a linked list of GRADDINFO structures.  If multiple GRADD 
chains are in use, the head CHAININFO structure contains a pointer to the 
next CHAININFO structure. 

#include <GRADD.h>

GID      gid;         /*  NULL. */
ULONG    ulFunction;  /*  Set equal to VMI_CMD_QUERYCHAININFO. */
PVOID    pIn;         /*  NULL. */
PVOID    pOut;        /*  Pointer to a VMIQCI data structure. */
ULONG    rc;          /*  Return codes. */

rc = VMIEntry(gid, ulFunction, pIn, pOut);