| buttonchoose | switch mouse modes |
| Syntax | buttonchoose (choice : string)
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| Description | The buttonchoose procedure is used to change the mode of the mouse. In Turing, the mouse can either be in "single-button mode" or in "multi-button mode". In "single-button mode" the mouse is treated as a one button mouse. A button is considered pressed when any button is pressed and released only when all buttons have been released. In Turing, the mouse starts in "single-button mode". The parameter choice can be one of "singlebutton", "onebutton" (which switch the mouse into "single-button mode") or "multibutton" (which switches the mouse into "multi-button mode").
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| Example | A program that displays the status of the mouse at the top left corner of the screen.
buttonchoose ("multibutton")
var x, y, button, left, middle, right : int
mousewhere (x, y, button)
left := button mod 10 % left = 0 or 1
middle := (button - left) mod 100 % middle = 0 or 10
right := button - middle - left % right = 0 or 100
if left = 1 then
put "left button down"
end if
if middle = 10 then
put "middle button down"
end if
if right = 100 then
put "right button down"
end if
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| Execute | |
| See also | buttonmoved and buttonwait to get mouse events saved in a queue. See also mousewhere to get the current status of mouse button(s). See also predefined unit Mouse.
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