ACMDRV_MESSAGE_PARAMS (Compact 2013)

3/26/2014

This structure contains members passed to the ACM_IOControl function.

Syntax

typedef struct { 
  DWORD dwDeviceID;
  HANDLE hDriver;
  UINT uMsg;
  LPARAM lParam1;
  LPARAM lParam2;
} ACMDRV_MESSAGE_PARAMS;

Members

• dwDeviceID
  Value that specifies an instance identifier. This value is message-specific.

• hDriver
  Handle to a driver.

• uMsg
  Value that specifies one of the ACM driver messages.

• lParam1
  Value that specifies the first message member. This value depends on the message type.

• lParam2
  Value that specifies the second message member. This value depends on the message type.

Requirements

See Also

Reference

ACM Driver Structures
ACM_IOControl