BUG: Ranorex 4.1 causing display problems with OpenGL

[Gav]

Hi there,

We have an application that contains child OpenGL windows which render images using a 3rd party library called OpenInventor. We rely heavily on Ranorex to validate the images shown in the OpenGL windows. However, since upgrading to 4.1, each time Ranorex attempts to access the application via Spy or the test recordings, the display is corrupted, meaning screenshots can't be validated. Using a different tool to access the UI elements does not cause this display issue, e.g. UISpy.

When accessed using UISpy, the display remains correct:

UISpy.png

When using Ranorex Spy, the display is corrupted and various parts of the parent UI are repeated in the display area:

Ranorex Spy.png

Please help!

Many thanks,

Gav Warrender

[Gav]

Hi there,

Does anyone have any thoughts on this problem?

Gav

[Support Team]

Hello Gav,

We have introduced a new "background" screenshot capturing method with Ranorex 4.1
(which is also used in Spy by default). This might interfere with your OpenGL application refreshing.
Please try to turn off "Use hidden screenshot capturing" in Settings/Advanced tab.
Alternatively, switching off Desktop Composition ("Aero") also causes the feature to be deactivated.

Michael
Ranorex Team

[Gav]

Thanks, Michael.

We've rolled back to 4.0.6 for the time being, but I will try these alternative settings when we upgrade to 4.1 again.

Gav