what is the `A-` binding?

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On Emacs, if I type C-h, b a list of keybinds come up, including:



enter image description here



what is A- and how do I access it?










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    up vote
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    down vote

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    On Emacs, if I type C-h, b a list of keybinds come up, including:



    enter image description here



    what is A- and how do I access it?










    share|improve this question







    New contributor




    zcaudate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      On Emacs, if I type C-h, b a list of keybinds come up, including:



      enter image description here



      what is A- and how do I access it?










      share|improve this question







      New contributor




      zcaudate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      On Emacs, if I type C-h, b a list of keybinds come up, including:



      enter image description here



      what is A- and how do I access it?







      key-bindings






      share|improve this question







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      zcaudate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question







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      zcaudate

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          1 Answer
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          A- is the Alt modifier. Which, for clarity, is almost definitely not the key labelled 'Alt' on your keyboard -- that's recognised as the Meta modifier.



          Most people simply don't have this modifier key. It's relatively common for people to configure Super and Hyper modifiers on modern keyboards but, probably on account of the potential for confusion, one doesn't tend to hear about people using the Alt modifier in Emacs these days. (It was useful on keyboards which had an 'Alt' key and a 'Meta' key, though.)



          If you have a need, you can invoke the Alt modifier like so:



          C-x@a



          Followed by whichever key you wish to be modified. In your examples: *



          Function key map translations Starting With C-x @:
          key binding
          --- -------

          C-x @ S event-apply-shift-modifier
          C-x @ a event-apply-alt-modifier
          C-x @ c event-apply-control-modifier
          C-x @ h event-apply-hyper-modifier
          C-x @ m event-apply-meta-modifier
          C-x @ s event-apply-super-modifier





          share|improve this answer




















          • stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
            – phils
            3 hours ago










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          1 Answer
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          1 Answer
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          active

          oldest

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          active

          oldest

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          active

          oldest

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          up vote
          2
          down vote













          A- is the Alt modifier. Which, for clarity, is almost definitely not the key labelled 'Alt' on your keyboard -- that's recognised as the Meta modifier.



          Most people simply don't have this modifier key. It's relatively common for people to configure Super and Hyper modifiers on modern keyboards but, probably on account of the potential for confusion, one doesn't tend to hear about people using the Alt modifier in Emacs these days. (It was useful on keyboards which had an 'Alt' key and a 'Meta' key, though.)



          If you have a need, you can invoke the Alt modifier like so:



          C-x@a



          Followed by whichever key you wish to be modified. In your examples: *



          Function key map translations Starting With C-x @:
          key binding
          --- -------

          C-x @ S event-apply-shift-modifier
          C-x @ a event-apply-alt-modifier
          C-x @ c event-apply-control-modifier
          C-x @ h event-apply-hyper-modifier
          C-x @ m event-apply-meta-modifier
          C-x @ s event-apply-super-modifier





          share|improve this answer




















          • stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
            – phils
            3 hours ago














          up vote
          2
          down vote













          A- is the Alt modifier. Which, for clarity, is almost definitely not the key labelled 'Alt' on your keyboard -- that's recognised as the Meta modifier.



          Most people simply don't have this modifier key. It's relatively common for people to configure Super and Hyper modifiers on modern keyboards but, probably on account of the potential for confusion, one doesn't tend to hear about people using the Alt modifier in Emacs these days. (It was useful on keyboards which had an 'Alt' key and a 'Meta' key, though.)



          If you have a need, you can invoke the Alt modifier like so:



          C-x@a



          Followed by whichever key you wish to be modified. In your examples: *



          Function key map translations Starting With C-x @:
          key binding
          --- -------

          C-x @ S event-apply-shift-modifier
          C-x @ a event-apply-alt-modifier
          C-x @ c event-apply-control-modifier
          C-x @ h event-apply-hyper-modifier
          C-x @ m event-apply-meta-modifier
          C-x @ s event-apply-super-modifier





          share|improve this answer




















          • stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
            – phils
            3 hours ago












          up vote
          2
          down vote










          up vote
          2
          down vote









          A- is the Alt modifier. Which, for clarity, is almost definitely not the key labelled 'Alt' on your keyboard -- that's recognised as the Meta modifier.



          Most people simply don't have this modifier key. It's relatively common for people to configure Super and Hyper modifiers on modern keyboards but, probably on account of the potential for confusion, one doesn't tend to hear about people using the Alt modifier in Emacs these days. (It was useful on keyboards which had an 'Alt' key and a 'Meta' key, though.)



          If you have a need, you can invoke the Alt modifier like so:



          C-x@a



          Followed by whichever key you wish to be modified. In your examples: *



          Function key map translations Starting With C-x @:
          key binding
          --- -------

          C-x @ S event-apply-shift-modifier
          C-x @ a event-apply-alt-modifier
          C-x @ c event-apply-control-modifier
          C-x @ h event-apply-hyper-modifier
          C-x @ m event-apply-meta-modifier
          C-x @ s event-apply-super-modifier





          share|improve this answer












          A- is the Alt modifier. Which, for clarity, is almost definitely not the key labelled 'Alt' on your keyboard -- that's recognised as the Meta modifier.



          Most people simply don't have this modifier key. It's relatively common for people to configure Super and Hyper modifiers on modern keyboards but, probably on account of the potential for confusion, one doesn't tend to hear about people using the Alt modifier in Emacs these days. (It was useful on keyboards which had an 'Alt' key and a 'Meta' key, though.)



          If you have a need, you can invoke the Alt modifier like so:



          C-x@a



          Followed by whichever key you wish to be modified. In your examples: *



          Function key map translations Starting With C-x @:
          key binding
          --- -------

          C-x @ S event-apply-shift-modifier
          C-x @ a event-apply-alt-modifier
          C-x @ c event-apply-control-modifier
          C-x @ h event-apply-hyper-modifier
          C-x @ m event-apply-meta-modifier
          C-x @ s event-apply-super-modifier






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 3 hours ago









          phils

          23.8k23160




          23.8k23160











          • stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
            – phils
            3 hours ago
















          • stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
            – phils
            3 hours ago















          stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
          – phils
          3 hours ago




          stackoverflow.com/a/27419718/324105 might also be useful reading regarding the event-apply-*-modifier functions.
          – phils
          3 hours ago










          zcaudate is a new contributor. Be nice, and check out our Code of Conduct.









           

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