GHI_CMD_QUERYMODES - Parameters

 gid (GID) - input 
    ID of the GRADD. 
 

 ulFunction (ULONG) - input 
    Set equal to GHI_CMD_QUERYMODES. 
 

 pIn (PVOID) - input 
    Pointer that identifies a QUERYMODE operation. 

    This pointer identifies one of the following operations: 

    QUERYMODE_NUM_MODES   
    QUERYMODE_MODE_DATA   
 

 pOut (PVOID) - output 
    Pointer to the pIn operation. 

    This pointer indicates one of the following, depending on the value of 
    pIn: 

    QUERYMODE_NUM_MODES 
                   Indicates a pointer to a ULONG that is to be given the 
                   number of supported modes. 
    QUERYMODE_MODE_DATA 
                   Indicates a pointer to an array of GDDMODEINFO 
                   structures large enough for the number of supported 
                   modes. 
 

 rc (ULONG) - returns 
    Return codes. 

    RC_SUCCESS            
    RC_ERROR