vk-cancel

There are pre-defined constants corresponding to usually non-typable keys on the keyboard (see key-names). When a Lisp function calls for a virtual key argument, one of the pre-defined constants is suitable as an argument value. The word after the hyphen names the key, although this is an anomalous case. In Windows, vk-cancel refers to the Pause/Break key when the control key is held down. As an anomolous case, when Pause/Break is pressed while either of the two control keys is held down, the key-code argument that is passed to generic functions such as virtual-key-down will be the value of vk-cancel instead of the value of vk-pause as it would be otherwise.

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Created 2019.8.20.