通过

IOCTL_CDROM_PAUSE_AUDIO (Compact 2013)

  • 项目

3/26/2014

This I/O control message suspends audio play. Send this message with DeviceIoControl.

Syntax

BOOL DeviceIoControl(
    HANDLE hDevice,           // handle to device
    DWORD dwIoControlCode,    // use IOCTL_CDROM_PAUSE_AUDIO
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned,  // number of bytes returned
    OVERLAPPED lpOverlapped   // pointer to OVERLAPPED structure
);

Parameters

  • hDevice
    [in] Handle to the device.
  • dwIoControlCode
    [in] Control code for the operation. Use IOCTL_CDROM_PAUSE_AUDIO for this operation.
  • lpInBuffer
    [in] Set to NULL.
  • nInBufferSize
    [in] Set to zero.
  • lpOutBuffer
    [in][out] Set to NULL.
  • nOutBufferSize
    [in] Set to zero.
  • lpBytesReturned
    [out] Set to NULL.
  • lpOverlapped
    [in] Set to NULL.

Return Values

Returns TRUE if successful; otherwise, returns FALSE.

Remarks

To get extended error information, call GetLastError. GetLastError may return other standard error messages as appropriate.

Requirements

Header

cdioctl.h

See Also

Reference

Block Driver IOCTLs
DeviceIoControl