BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Keypad Identification - HID?          BorlandTalk.com Forum Index -> C++ Builder (Compatibility with MFC) View previous topic :: View next topic   Author Message Matt Muskovac Guest Posted: Sun Mar 26, 2006 3:03 am    Post subject: Keypad Identification - HID? I have three identical standard USB numeric keypads connected to the computer (call them 1,2,3). I need to know which keypad keystokes are coming from. I realize that the user may need to correlate the keypads by pressing a key on each keypad each time they run the application, this is acceptable. Is the HID the best (easiest) way to do this? Thanks in advance, MattM Back to top Matt Muskovac Guest Posted: Tue Mar 28, 2006 9:03 am    Post subject: Re: Keypad Identification - HID? After digging around the internet for many, many hours, I think I am now on the right trail ... WinXP has a new "raw input" message. Unfortunately, BCB6 doesn't have any direct support for this so I will need to use Win API calls. I haven't written any code yet, but, it appears that these are the functions needed to setup the input messages: GetRawInputDeviceList, GetRawInputDeviceInfo, RegisterRawInputDevices Then I will make an OnMessage handler and intercept the raw input messages (WM_INPUT). GetRawInputData will help decode the message. If anyone else wants more info on this, search for "WM_INPUT" on MSDN or google: "rawmouse". MattM "Matt Muskovac" <mathyou (AT) aol (DOT) com> wrote in message news:4425fa66 (AT) newsgroups (DOT) borland.com... Quote: I have three identical standard USB numeric keypads connected to the computer (call them 1,2,3). I need to know which keypad keystokes are coming from. I realize that the user may need to correlate the keypads by pressing a key on each keypad each time they run the application, this is acceptable. Is the HID the best (easiest) way to do this? Thanks in advance, MattM Back to top Matt Muskovac Guest Posted: Tue Apr 11, 2006 7:03 am    Post subject: Re: Keypad Identification - HID? I did get this working as described in the previous post. Borland does provide an ApplicationEvents callback so I did not need to use the WinAPI OnMessage. "Matt Muskovac" <mathyou (AT) aol (DOT) com> wrote in message news:4428f20d$1 (AT) newsgroups (DOT) borland.com... Quote: After digging around the internet for many, many hours, I think I am now on the right trail ... WinXP has a new "raw input" message. Unfortunately, BCB6 doesn't have any direct support for this so I will need to use Win API calls. I haven't written any code yet, but, it appears that these are the functions needed to setup the input messages: GetRawInputDeviceList, GetRawInputDeviceInfo, RegisterRawInputDevices Then I will make an OnMessage handler and intercept the raw input messages (WM_INPUT). GetRawInputData will help decode the message. If anyone else wants more info on this, search for "WM_INPUT" on MSDN or google: "rawmouse". MattM "Matt Muskovac" <mathyou (AT) aol (DOT) com> wrote in message news:4425fa66 (AT) newsgroups (DOT) borland.com... I have three identical standard USB numeric keypads connected to the computer (call them 1,2,3). I need to know which keypad keystokes are coming from. I realize that the user may need to correlate the keypads by pressing a key on each keypad each time they run the application, this is acceptable. Is the HID the best (easiest) way to do this? 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