We make a product called "People Tally Counter".
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This product consists of a group of photocells, a digital analogic
converter, a Windows software and a Cloud system for the data management.
When the photocell relay closes, the analogue digital converter converts
the analogue signal into a keyboard function key (F7, F8, F9, F10, F11, F12, F13, F14, F15).
The conversion is performed by an electronic circuit named "Teensy LC".
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Whenever the Teensy device raises a key event (F7, F8...), our VB.NET <http://vb.net/> software memorizes a timestamp and then sends the data to our cloud system.
Since our software works in backgound mode, the PC is free to be used for other functions.
So far we have used our own library to perform the keyboard hook, but this library continues to give us numerous problems and it's not reliable.
So we need to find out an alternative to our library.
We need a DLL to be used in VB.NET <http://vb.net/> and/or C# programs.
This DLL must read the keyboard events even if the application is not in focus.
The events (for the key F7, F8, F9, F10, F11, F12, F13, F14, F15) we need are the following:
- Last Key Down
- Last Key Up
- Depress Time
- Lag Time the time between key pressed
Are you able to make this DLL and how much does it cost?
21 freelancer đang chào giá trung bình €492 cho công việc này
This can be done without the need of any additional dll files (apart from ones that come with windows). I can send an executable demo doing this. Regards
Hello, sir. I've read your requirement carefully. I've rich experience with vb.net development over 3 years. I can start work right now for full time. Hope your contact. thanks
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Let’s chat and discuss about price and work. 12 years experience in same filed you will get 100% correct work. No need to pay upfront money first check work quality and if you satisfied then pay.