Curvemeister Forum

I selected a point on my Lab lightness curve and changed its output value using the keyboard to enter a new value in the little text entry box in the bottom right corner of the curve graphic. When I pressed return to accept this new value CM3 took this as my hitting the OK button and closed the entire dialog.

IOW there's a focus issue - when one of the curve numeric entry widgets has keyboard focus, it, not the OK button, should respond to the return key.

Now that you mention it,  this is non-standard behavior, but Photoshop behaves the same way.  When possible I've chosen to emulate what Photoshop does even if it steps outside the user interface guidelines.

For both Photoshop and Curvemeister, the numbers update the curve point position in real time, and pressing the return key dismisses the curve dialog as well as Curvemeister.  Other dialogs, such as the Liquify filter terminate after the return key is pressed, so this may be standard photoshop behavior.

I do agree it's a poor feeling when Curvemeister up and quites right when you're in the middle of doing something, so there is an argument to ignore the return key in certain situations.
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Now that you mention it,  this is non-standard behavior, but Photoshop behaves the same way.

D'you know, I've never noticed that before! Whenever I select a numeric value for editing I almost always use the arrow keys to nudge it up or down, or Ctrl-drag to increase or decrease it by a large amount. I rarely enter a precise value. With this curve point I wanted to set the input to the output, so typed the value directly.

CM2 does it too, and I never noticed it there, much less got bothered by it. Probably best leave it as it is then!