Version imprimable
la paix a tout
je veut fair une application d'un compteur des feuilles imprimees par un recepteur infra rouge et je veut utiliser le port com pour entrer les donnes de compteur a mon PC.
avec chaque signal compte une feuille
comment je peut fair?????
? 8O
Y'a un OCX mscomm il me semble.
Dans menu>projet>composants fouiller et trouver le bon controle.
( mscomm32.ocx)
Sinon en dynamique avec un dim et set new cela doit fonctionner
Voir le MSDN pour l'utiliser
Citation:
MSComm Control
The MSComm control provides serial communications for your application by allowing the transmission and reception of data through a serial port.
Syntax
MSComm
Remarks
The MSComm control provides the following two ways for handling communications:
Event-driven communications is a very powerful method for handling serial port interactions. In many situations you want to be notified the moment an event takes place, such as when a character arrives or a change occurs in the Carrier Detect (CD) or Request To Send (RTS) lines. In such cases, use the MSComm control's OnComm event to trap and handle these communications events. The OnComm event also detects and handles communications errors. For a list of all possible events and communications errors, see the CommEvent property.
You can also poll for events and errors by checking the value of the CommEvent property after each critical function of your program. This may be preferable if your application is small and self-contained. For example, if you are writing a simple phone dialer, it may not make sense to generate an event after receiving every character, because the only characters you plan to receive are the OK response from the modem.
Each MSComm control you use corresponds to one serial port. If you need to access more than one serial port in your application, you must use more than one MSComm control. The port address and interrupt address can be changed from the Windows Control Panel.
Although the MSComm control has many important properties, there are a few that you should be familiar with first.
Properties Description
CommPort Sets and returns the communications port number.
Settings Sets and returns the baud rate, parity, data bits, and stop bits as a string.
PortOpen Sets and returns the state of a communications port. Also opens and closes a port.
Input Returns and removes characters from the receive buffer.
Output Writes a string of characters to the transmit buffer.
Bien sûr il te faut aussi connaître le protocole de communication avec le périphérique qui se trouve sur le com ;)