comp.lang.idl-pvwave archive: archive » Lack of KeyMods parameter in the ::MouseUp function call -> Feature request

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Lack of KeyMods parameter in the ::MouseUp function call -> Feature request [message #84603]

Wed, 30 December 2015 15:25

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

Hi,
I'm intensively using the FG event handler class. In doing so, I've come to a problem where I would like the ::MouseUp function to include information about the current keyMods. Currently, the functions ::MouseDown, ::MouseMotion and ::MouseWheel have it...

Let me explain why I think this is useful.
I have a polygon on an image. I would like to add a point to the polygon. To distinguish from the translation case, I use the "alt" key to identify modifications (or alt-erations) to the polygon. Therefore, pressing the alt-key and the left mouse button results in an added point. Since I'm not always good with my hand, I would like to be able to:

1) press down alt-key
2) press down left mouse button (a point is added)
3) move mouse (and see the added point moving with the mouse)
4) release the left mouse button
5) release the alt-key

Besides being useful, it is also "cool".

However, if I would like to "cancel" the add point operation if the alt-key is released *before* the release of the left mouse button. In other words, the following sequence should delete the point after step 4):

1) press down alt-key
2) press down left mouse button (a point is added)
3) move mouse (and see the added point moving with the mouse)
4) release the alt-key (the previously added point is deleted)
5) release the left mouse button

Since I cannot detect if alt is pressed when releasing the button, I cannot do this.

Can this please be added? I don't think that it is that much of an effort..

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[Message index]

		Lack of KeyMods parameter in the ::MouseUp function call -> Feature request By: Helder Marchetto on Wed, 30 December 2015 15:25
		Re: Lack of KeyMods parameter in the ::MouseUp function call -> Feature request By: chris_torrence@NOSPAM on Tue, 05 January 2016 13:16
		Re: Lack of KeyMods parameter in the ::MouseUp function call -> Feature request By: Helder Marchetto on Tue, 05 January 2016 13:20
		Re: Lack of KeyMods parameter in the ::MouseUp function call -> Feature request By: chris_torrence@NOSPAM on Wed, 06 January 2016 08:31

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