Wed, 07/17/2002 - 09:28
Forums:
Hi, everybody:
You can easily reproduce the following bug in any MFC Samples:
New two empty documents, make one of them maximizied, then close one child window.
OK, you can see the other child window is black screen.
From the servey of opencascade.org, most of us are using OCC as industrial development, but any of us could allow this bug in a serious application?
fhchina
Wed, 07/17/2002 - 16:19
Are you using W95 or W98 ?
What is your graphic card ?
Wed, 07/17/2002 - 16:43
Hi, Stephane:
I am using Windows 2000 Professional. My graphic card is very simple(or poor, :-)):
Intel(r) 82815 Graphics Controller.
I am very strange if this problem only occurs on my box?
Couldn't you reproduce this bug?
But OpenGL should be system independent. It seems impossible to be hardware related, I guess.
fhchina
Wed, 07/17/2002 - 16:50
Hi,
I know that this problem often appears with OpenCASCADE on Windows9x.
As you said, OpenGL ( the programming "language" ) is system independant. But the drivers are NOT.
If the driver is bugged, you will have bug in your OpenGL application.
In your case, it seems that you cannot have 2 OpenGL "devices" on the screen at the same time.
If you know OpenGL, it could be a problem with the wglMakeCurrent function.
Try to download the newest drivers for your graphic card, or buy a decent one ;-)
HTH.
Wed, 07/17/2002 - 17:33
Thank you, Stephane.
I will try, anyway. Or driver, or OpenGL, or other machine.
Wed, 07/17/2002 - 17:38
No problemo !
Wed, 07/17/2002 - 17:44
Hi, Stephane:
I want to say: couldn't access www.exotk.org once agin. :-).
By IE, it is impossible. Then I nslookup its IP, I find 80.67.173.5. But using this IP I will get http://www.gandi.net/error.html. It may be a problem with GANDI, I think.
fhchina
Wed, 02/26/2003 - 16:03
Hi !
The URL works fine for me. no problems at all.
Mikael
Wed, 02/26/2003 - 16:09
Hi again !
You might have a DNS problem somewhere, when I ran nslookup on it I got 66.246.37.37
Mikael
Wed, 02/26/2003 - 14:21
You should change the graphics resolution to 1024 x768 and number of colours to 16 bits or 256 colours. Try any combination. Shut down you software before any change.
Sometimes OCC works fine when these changes are done.
The last driver is MANDATORY too !
A real OpenGL card is better
Some CAD company (Solidworks for ex.) display info about Graphic Card test.
I personnaly like NVIDIA GE-FORCE 2 or 4
Windows98 is very hard for OCC developpers.