SetCommBreak function (winbase.h)

Suspends character transmission for a specified communications device and places the transmission line in a break state until the ClearCommBreak function is called.


BOOL SetCommBreak(
  [in] HANDLE hFile


[in] hFile

A handle to the communications device. The CreateFile function returns this handle.

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.


Requirement Value
Minimum supported client Windows XP [desktop apps | UWP apps]
Minimum supported server Windows Server 2003 [desktop apps | UWP apps]
Target Platform Windows
Header winbase.h (include Windows.h)
Library Kernel32.lib
DLL Kernel32.dll

See also


Communications Functions

Communications Resources