how do you can detect if a usb device is connected or disconnected?

Last Update: 08/05/2004 || Times Visited: 6086

Subtitle: TUsbClass
In article 4077 "usb and RegisterDeviceNotification", Miguel Lucero shows us how to detect the Insertion and Removal of USB devices. His example is a TComponent and while it triggers on Insertion and Removal we have NO way of knowing the name of the USB device in question. I h

Last Update: 02/04/2008 || Times Visited: 11839

Subtitle: Distributing State Information to Clients Using IBEvents and Generators
The common task in practice is to monitor one device and distribute its state changes immediately to other applications in LAN. One application monitors device communicating with it through Serial Line, USB etc...), extracts state information from device, and distribute it to all

Last Update: 12/13/2007 || Times Visited: 2046

Serial (and virtual serial) PNP Devices (PCMCIA, USB, Bluetooth) get assigned "arbitrary" comm port numbers. To help users to select the correct comm port it would be helpfull to list them with device friendly names. The supplied function helps this goal.

Last Update: 11/15/2004 || Times Visited: 13311

Subtitle: FireWireController (IEEE-1394)
FireWireController (IEEE 1394) is an application for any kind of firewire controlled devices (Cameras, VCRs, etc.). It provides Audio/Video capture and preview. Capture format is AVI type 1. Supported video formats are PAL and NTSC.

Last Update: 04/23/2004 || Times Visited: 3879