acmStreamMessage function (msacm.h)

The acmStreamMessage function sends a driver-specific message to an ACM driver.

Syntax

MMRESULT ACMAPI acmStreamMessage(
  HACMSTREAM has,
  UINT       uMsg,
  LPARAM     lParam1,
  LPARAM     lParam2
);

has

Handle to an open conversion stream.

uMsg

Message to send.

lParam1

Message parameter.

lParam2

Message parameter.

Returns the value returned by the ACM device driver.

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	msacm.h
Library	Msacm32.lib
DLL	Msacm32.dll