HID keyboard - how to send Windows GUI key

RE: HID keyboard - how to send Windows GUI key

Matthew K — Wed, 15 Mar 2023 04:34:39 GMT

Thank you so much Sigurd! Let's close this and have a great day!

RE: HID keyboard - how to send Windows GUI key

Sigurd — Tue, 14 Mar 2023 00:00:02 GMT

Hi,

I got 0xE3 and 0xE7 working, but I needed to change the HID report map to allow this. i.e. Logical Maximum(101) / Usage Maximum (101) changed from 0x65 to 0xe7

    static uint8_t                     report_map_data[] =
    {
        0x05, 0x01,       // Usage Page (Generic Desktop)
        0x09, 0x06,       // Usage (Keyboard)
        0xA1, 0x01,       // Collection (Application)
        0x05, 0x07,       // Usage Page (Key Codes)
        0x19, 0xe0,       // Usage Minimum (224)
        0x29, 0xe7,       // Usage Maximum (231)
        0x15, 0x00,       // Logical Minimum (0)
        0x25, 0x01,       // Logical Maximum (1)
        0x75, 0x01,       // Report Size (1)
        0x95, 0x08,       // Report Count (8)
        0x81, 0x02,       // Input (Data, Variable, Absolute)

        0x95, 0x01,       // Report Count (1)
        0x75, 0x08,       // Report Size (8)
        0x81, 0x01,       // Input (Constant) reserved byte(1)

        0x95, 0x05,       // Report Count (5)
        0x75, 0x01,       // Report Size (1)
        0x05, 0x08,       // Usage Page (Page# for LEDs)
        0x19, 0x01,       // Usage Minimum (1)
        0x29, 0x05,       // Usage Maximum (5)
        0x91, 0x02,       // Output (Data, Variable, Absolute), Led report
        0x95, 0x01,       // Report Count (1)
        0x75, 0x03,       // Report Size (3)
        0x91, 0x01,       // Output (Data, Variable, Absolute), Led report padding

        0x95, 0x06,       // Report Count (6)
        0x75, 0x08,       // Report Size (8)
        0x15, 0x00,       // Logical Minimum (0)
        0x25, 0xe7,       // Logical Maximum (101) // changed from 0x65 to 0xe7
        0x05, 0x07,       // Usage Page (Key codes)
        0x19, 0x00,       // Usage Minimum (0)
        0x29, 0xe7,       // Usage Maximum (101) // changed from 0x65 to 0xe7
        0x81, 0x00,       // Input (Data, Array) Key array(6 bytes)

        0x09, 0x05,       // Usage (Vendor Defined)
        0x15, 0x00,       // Logical Minimum (0)
        0x26, 0xFF, 0x00, // Logical Maximum (255)
        0x75, 0x08,       // Report Size (8 bit)
        0x95, 0x02,       // Report Count (2)
        0xB1, 0x02,       // Feature (Data, Variable, Absolute)

        0xC0              // End Collection (Application)
    };

RE: HID keyboard - how to send Windows GUI key

Matthew K — Mon, 13 Mar 2023 16:55:15 GMT

Hi Sigurd. As mentioned in the first thread,

[quote userid="26837" url="~/f/nordic-q-a/97439/hid-keyboard---how-to-send-windows-gui-key"]The problem is when I send Left GUI key 0xE3 or Right GUI key 0xE7, Windows doesn't respond.[/quote]

Key press: 00 00 E3 00 00 00 00 00

Release: 00 00 00 00 00 00 00 00

I tried this but Windows didn't show the start menu.

This start menu is NOT showing. Is there something I'm missing? Thank you for your help!

RE: HID keyboard - how to send Windows GUI key

Sigurd — Mon, 13 Mar 2023 11:38:54 GMT

[quote user="MatthewKYEO"]What is the correct data format to "press the Windows key" to see the "Windows Start Menu"?[/quote]

If you are not "modifying" anything, how about 0x00,0x00,0xE3 ?

RE: HID keyboard - how to send Windows GUI key

Matthew K — Wed, 08 Mar 2023 14:10:22 GMT

Hi Sigurd. Do you mean send

[Modifier = 0x08, 0x00, Key1 = 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]

? I tried but this doesn't work as well.

Testing the Windows hotkey (Modifier 0x08 + Key1) is working though.

What is the correct data format to "press the Windows key" to see the "Windows Start Menu"?

Thank you for your help!

RE: HID keyboard - how to send Windows GUI key

Sigurd — Wed, 08 Mar 2023 12:16:18 GMT

Hi,

Could you try e.g. 0x08 as the left GUI modifier key instead of 0xE3

  APP_USBD_HID_KBD_MODIFIER_NONE = 0x00,
  APP_USBD_HID_KBD_MODIFIER_LEFT_CTRL = 0x01,
  APP_USBD_HID_KBD_MODIFIER_LEFT_SHIFT = 0x02,
  APP_USBD_HID_KBD_MODIFIER_LEFT_ALT = 0x04,
  APP_USBD_HID_KBD_MODIFIER_LEFT_UI = 0x08,
  APP_USBD_HID_KBD_MODIFIER_RIGHT_CTRL = 0x10,
  APP_USBD_HID_KBD_MODIFIER_RIGHT_SHIFT = 0x20,
  APP_USBD_HID_KBD_MODIFIER_RIGHT_ALT = 0x40,
  APP_USBD_HID_KBD_MODIFIER_RIGHT_UI = 0x80