The EscapeCommFunction function directs a specified communications device to perform an extended function.
BOOL EscapeCommFunction(
HANDLE hFile, |
// handle to communications device |
DWORD dwFunc |
// extended function to perform |
); |
Value |
Meaning |
CLRDTR |
Clears the DTR (data-terminal-ready) signal. |
CLRRTS |
Clears the RTS (request-to-send) signal. |
SETDTR |
Sends the DTR (data-terminal-ready) signal. |
SETRTS |
Sends the RTS (request-to-send) signal. |
SETXOFF |
Causes transmission to act as if an XOFF character has been received. |
SETXON |
Causes transmission to act as if an XON character has been received. |
SETBREAK |
Suspends character transmission and places the transmission line in a break state until the ClearCommBreak function is called (or EscapeCommFunction is called with the CLRBREAK extended function code). The SETBREAK extended function code is identical to the SetCommBreak function. Note that this extended function does not flush data that has not been transmitted. |
CLRBREAK |
Restores character transmission and places the transmission line in a nonbreak state. The CLRBREAK extended function code is identical to the ClearCommBreak function. |
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.
ClearCommBreak, CreateFile, SetCommBreak
file: /Techref/os/win/api/win32/func/src/f22_14.htm, 4KB, , updated: 2000/4/7 11:19, local time: 2024/11/7 07:55,
18.207.160.209:LOG IN ©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://www.piclist.com/techref/os/win/api/win32/func/src/f22_14.htm"> EscapeCommFunction</A> |
Did you find what you needed? |
PICList 2024 contributors:
o List host: MIT, Site host massmind.org, Top posters @none found - Page Editors: James Newton, David Cary, and YOU! * Roman Black of Black Robotics donates from sales of Linistep stepper controller kits. * Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters. * Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated! * Contributors: Richard Seriani, Sr. |
Welcome to www.piclist.com! |
.