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Author Topic: How to reach Windows function GetSystemMetrics from my usb hid device?  (Read 13852 times)

Const50

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How to reach Windows function GetSystemMetrics from my usb hid device?
« on: September 26, 2012, 10:03:38 am »
We develop now the mouse like device and it needs PC display screen parameters , screen X and Y size. We use HID descriptor for device, but we can’t understand, is it possible and how to transfer Windows function GetSystemMetrics (SM_CX(Y)Screen) to device over USB. Could you prompt it?
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Jan Axelson

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Re: How to reach Windows function GetSystemMetrics from my usb hid device?
« Reply #1 on: September 26, 2012, 02:10:46 pm »
You could define a vendor-specific Feature report to transfer vendor-specific data. You would need an application or driver to send the data to the mouse.
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Const50

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Re: How to reach Windows function GetSystemMetrics from my usb hid device?
« Reply #2 on: September 26, 2012, 09:22:02 pm »
By another words: I must make specific driver, isn't it?
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Jan Axelson

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Re: How to reach Windows function GetSystemMetrics from my usb hid device?
« Reply #3 on: September 27, 2012, 10:40:03 am »
Or an application. I have example code for Feature reports here:

http://www.lvr.com/hidpage.htm#MyExampleCode
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