The little transform button, (the one with the two curvey arrows) will initiate the 'Free Transform' function on a selected area, and when clicked again, will commit any changes. The Hand tool toggles, and will un-toggle when you select any other button. (It can sometime get stuck if you use this bar in conjunction with Photoshop's native tool panel. It's a bug, but if it happens, just click on any of the other buttons in this tool bar to un-stick it. I might try to fix that sometime, but for now it's pretty easy to ignore).
In PaintTool Sai, the buttons are linked to specific keyboard shortcuts, so they may not match up with the shortcuts you have set up. If you are interested and need help getting it going, please feel free to email me and I'll be happy to help you through it.
A huge thanks to the guys over on the Tablet PC Forum who made this possible. (Thanks guys!)
If you want to play with the old Undo button, it's still available below.
On-Screen Undo Button for Photoshop-Executable ~ Version 1.3
Right Click to download.
The above link allows you to download a little program I wrote which puts a transparent virtual "Undo" button right on Photoshop's screen. It can be tapped with a stylus or clicked on with a mouse pointer to undo the last action in Photoshop.
I made this for the Tablet PC I've been working on because it's nice to be able to just tap a spot on the screen and activate the Undo function without having to use the keyboard. This become particularly useful when I happen to be away from my studio tablet, (which is mounted to a drafting board and has a keyboard within easy reach.) My smaller, portable computer, when it is set in tablet mode, has its keyboard covered up by the screen, rendering all of Photoshop's keyboard shortcuts useless.
It seems pretty astonishing to me that nobody else had made an on-screen tool like this for Photoshop before, an oversight which was apparently left up to yours truly to address. óGiven my (very) limited programming skills, this seemed to me all the more astonishing, but what can one do? Luckily, as things turned out, a bit of research and lots of brain squeezing led me to this little invention which I now find really quite useful, so I thought I'd share.
This program will run in WinXP, and while I've not tested it, I don't see why it shouldn't also run under later versions of Windows.
For those of you who want to tinker with the guts of this program, you can download the original script here. . .
Undo Button Script
(Download and open with a text editor.)
This program was created using the Open Source utility AutoHotKey. To use it, download AutoHotKey and install it. Then download the Undo Button Script and put it in a folder or on your desktop.
If you open up the Undo Button Script file in a text editor such as, "Notepad" you will find that I have included extensive comments and instructions explaining how the script works. This should allow you to adapt it to your own needs; you can place it in different spots on the screen as well as make different buttons for doing other things. I hope some of you find it useful!
July 4th, 2011