The operating system sends the DBT_DEVICEREMOVECOMPLETE device message when a device has been removed.
To send the DBT_DEVICEREMOVECOMPLETE device message, the operating system sends the WM_DEVICECHANGE message with wParam set to DBT_DEVICEREMOVECOMPLETE and lParam set to the address of a DEV_BROADCAST_HDR structure identifying the device removed.
dwData = (DWORD) lParam;
The operating system may send a DBT_DEVICEREMOVECOMPLETE message without sending corresponding DBT_DEVICEQUERYREMOVE and DBT_DEVICEREMOVEPENDING messages. In such cases, the applications and drivers must recover from the loss of the device as best they can.
DBT_DEVICEQUERYREMOVE, DBT_DEVICEREMOVEPENDING, DEV_BROADCAST_HDR, WM_DEVICECHANGE
|file: /Techref/os/win/api/win32/mess/src/msg03_24.htm, 1KB, , updated: 2000/4/7 12:19, local time: 2022/5/22 13:27,
|©2022 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/mess/src/msg03_24.htm"> DBT_DEVICEREMOVECOMPLETE</A>
|Did you find what you needed?|
PICList 2022 contributors:
o List host: MIT, Site host massmind.org, Top posters @20220522
* 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!