32-bit Color Bit Depth required

[juanjes...@gmail.com]

Hello all,

Recently I have received an e prime 2 experiment from a companion laboratory, and they provided us only with the e-run file. Wen trying to run the experiment, I got the following error:

32-bit Color Bit Depth required.

This can be due to a system using Windows 8 or DirectX 11 or the graphics adapter not supporting the mode selected. Update the DisplayDevice in the Experiment Object / Devices tab.

Unfortunately, I only have the e-run file, so I can't go in and change the settings. However, the error message also says that an .startupinfo file can be used to override the settings. My question is, then, what do I have to write in said file to change the bit color depth to 32, and where to place the file?

I'm working on windows 10, with both e prime 2 and 3 installed, and the experiment was produced for e prime 2.

Thanks!

[McFarlane, David]

We have run into this problem several times when moving experiments to
Windows 10. And when we fix the "32-bit Color Bit Depth required"
issues, we almost always then get a message about Display Flipping
required, so be ready for that one too.

Whenever feasible, of course, we go into the .es2 file and update the
appropriate settings for the Display Device. When not feasible, we may
get around the problem using a StartupInfo file, but this works *only*
if the experiment was generated using the Professional format, not the
"Standard" (i.e., what I call "base") format. If your experiment was
generated using the Standard format then I do not think you can do
anything about it, but you could always check with PST Support to make sure.

So here is how to correct this using a StartupInfo file:

- Open the StartupInfo File Editor (e.g., from the Windows Start menu,
or from Cortana, or from the StarupInfo tab of the Experiment Object
Properties dialog of E-Studio).

- Add two rows for the following two Property Name / Value pairs:
- Display.ColorDepth 32
- Display.FlippingEnabled Yes

- Save this as a .startupInfo file. If you give it the same name as
your experiment file (e.g., "MyExpt.startupInfo") and place it in the
experiment folder, the settings will apply to that experiment; if you
give the file the name "Global.startupInfo" and place it in the "My
Documents\My Experiments" folder then it will apply to *all* experiments
for that logon account (and only that account).

Here is how this works -- when E-Run starts, it looks for a .startupInfo
file with the same name as the experiment file, and a Global.startupInfo
file, and creates the attributes given in those. Then code in the
generated experiment program looks for some specific attributes at
startup, and uses those attributes to override any other settings for
that run. You may see this in the generated code of any EP2 experiment
program.

Again, the StartupInfo file works *only* for experiments generated in
the Professional format. For more information, please see the "New
Features Guide" that came with EP2, and articles available at the PST
Support website.

-- David McFarlane