ACMDRV_MESSAGE_PARAMS

This structure contains members passed to the ACM_IOControl function.

Syntax

typedef struct {
DWORD dwDriverID;
HANDLE hDriver;
UINT uMsg;
LPARAM lParam1;
LPARAM lParam2;
} CMDRV_MESSAGE_PARAMS;

Members

dwDriverID

Specifies an instance identifier. This value is message-specific.

hDriver

Handle to a driver.

uMsg

Specifies one of the ACM driver messages.

lParam1

Specifies the first message member. Dependent on message type.

lParam2

Specifies the second message member. Dependent on message type.