Virtual Keycode 108 (VK_SEPARATOR 0x6c) is defined as the "Separator" key.
My UK keyboard doesn't have this physical key. It has two "/" keys but these are mapped to VK_OEM_2 0xBF and VK_DIVIDE 0x6F.
Which keyboards have a Separator key?
2 Answers
Just a guess, but interpolating based on ASCII values, I get U+002C , (comma) for VK_SEPARATOR:
| virtual key code name | virtual key code number | ASCII code | character |
|---|---|---|---|
| VK_MULTIPLY | 0x6A | 0x2A | * |
| VK_ADD | 0x6B | 0x2B | + |
| VK_SEPARATOR | 0x6C | 0x2C? | ,? |
| VK_SUBTRACT | 0x6D | 0x2D | - |
| VK_DECIMAL | 0x6E | 0x2E | . |
| VK_DIVIDE | 0x6F | 0x2F | / |
I don't have the full answer, but maybe it's good enough.
Numpads can have different layouts and the key assignments can be different. According to the Microsoft Scancode Specification the numpad does have key 106 and 107 similarly to what you probably also find on your mentioned UK layout.
For key 107 the specification mentions:
Keys 56 and 107 are used on Brazilian and some Far East keyboards. They [are] not available on US Keyboards.
The Brazilian keyboard does indeed have key 106 and 107 and more interestingly, 107 seems to be a . which one could also call a "separator"...
I'm sure if you continue looking, you'll find more similar layouts with the same amount of keys and similar key usages.
As a side note: The Apple keyboard also has the same number of keys, but arranged differently and has an additional equal sign.
Unfortunately, I don't have any of these layouts to actually test, what they return. Maybe for some layouts, the Win API will actually return VK_SEPARATOR instead of some VK_OEM_XYZ.
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