There was a question over at the Nvidia 3D Vision forum on how you can change the default key combination for taking stereoscopic 3D screenshots (Alt + F1) to something like Alt + Z or any other key combination that is more comfortable to use or is not used by a certain game or application and here is the detailed explanation. Now, through the Nvidia stereoscopic 3D control panel there are settings that allow you to change some advanced key combinations as you see fit, but not all of them are there and the screenshot key combination is most certainly not there either. So we are back to some Registry modification to do what we need, but before that we actually need to know how the key combinations are defined as values in the registry and thus it is learning time again… ;)
The location for the Stereo 3D settings in the Registry
For 32-bit OS:
For 64-bit OS:
Inside the registry there the keys are represented by a number in Hexadecimal format, for example the 0470 value for the SaveStereoImage as you see on the screenshot above (the Alt + F1 representation). We don’t need the value in the brackets after that (the decimal number), because we are going to use the Hex values here, so when modifying a value int the registry make sure that Hexadecimal is selected as the type of data you are entering. So the first part of the number – the digits 04 represent the modifier key pressed in this case it is ALT, but the value can represent any of the following: ALT, CTRL, SHIFT and the WIN key or a combination between the multiple of these keys pressed. In the table above you can see what are all 16 possible combinations between these keys that you can use, with 00 meaning that none of these keys is pressed and 0F that all four are pressed…
The second table is a bit bigger and it represents the different possible virtual keys that you can use along with the four mentioned already modifier keys. The second table has 256 possibilities, but not all of them are listed in the table as not all of them are being used or available on a standard keyboard or are even not even used anymore. Using this table you can get the second part of the number you need to enter as a value in the registry to modify a key combination for a specific command. The value 70 here represents the F1 key and you can get that number by looking at the table and when you find the key you need first writhe the number on the left (7) and then the one at the top (0) and this way you get the value 70 for F1. If you need the value for the F12 key following the same method you get 7 on the left and B at the top, so the Hex value for the F12 key is 7B and if you want to get the ALT + F12 key combination you get 04 for the ALT modifier and 7B for F12 and the resulting value is 047B that you need to set in the registry.
Notice that there are some cells in the table with different colors than white, these colors all represent some specific and here is what every color means. The yellow color shows the combinations that you can use with the three standard mouse buttons and yes, you can also use the mouse for key combinations and not just the keyboard. The red color represents the system control keys, the green color is for the keys on the Numpad and the blue color is for any multimedia keys that you might or might not have on your keyboard, the rest is in white and it represents the most standard keys that you can use like the letters, numbers etc.
So happy modifying with your newly acquired knowledge, just don’t forget to make a backup of the default settings in that Stereo3D registry key as otherwise if you mess something up you might have to reinstall the 3D Vision driver to restore them to their defaults. Also have in mind that there are some values with keys applied to them that are currently not being used and are depreciated remains from the older Nvidia stereo 3D drivers, so modifying these is pointless.