What if materials could defy gravity, so that we could leave them suspended in mid-air? ZeroN is a physical and digital interaction element that floats and moves in space by computer-controlled magnetic levitation.
IllumiShare enables remote people to share any physical or digital object on any surface. It is a low-cost, peripheral device that looks like a desk lamp, and just like a lamp lights up a surface at which it is pointed, IllumiShare shares a surface. To do this, IllumiShare uses a camera-projector pair where the camera captures video of the local workspace and sends it to the remote space and the projector projects video of the remote workspace onto the local space. With IllumiShare, people can sketch together using real ink and paper, remote meeting attendees can interact with conference room whiteboards, and children can have remote play dates in which they play with real toys.
Last week I was working and suddenly PC started acting strange. It had lag and the UI of Adobe Reader X was almost totally disposed.
The first thing that I did was checking the number of GDI objects from Adobe Reader X. If the UI is having problems drawing itself and the program is not responding as it should be, that could be a good place to start your search.
Checking the GDI objects in Windows is very simple:
Press Ctrl+Shift+Esc to open the Task Manager
Select the [Processes] tab
Add the GDI Objects column by clicking [View] > [Select Columns…] and check [GDI Objects]
Now find your Adobe Reader X process in the list and check how much GDI Objects it has.
The limit of GDI Objects per process is 10000 in Windows, and that is what I actually saw.
The problem occurs when you open a PDF file and press Ctrl+F and search for some text. You will not notice the leak if you don’t use (= scrolling and searching) the PDF file for a while.
By scrolling the document, everything works fine but if you search the document it will leak GDI handles and if you scroll after you triggered the leak, every scroll will increment the leaked handles.