How to solve this Error message?

romeo.rbw

Hi...
I run my application under Qt4.8 in Windows XP everything is Ok, but after moving to another PC using Win7, I compile and running under the same Qt in the new PC, the application running well for around 1 minute and then there is an error message:

25App.exe has stop working
Windows is collecting more information about the problem. This might take several minutes...

After that there is a message box:
Do you want to send more information about the problem? ...and so on..

Is there any suggestion? I need your help

Thanks in advance.

terenty

does any Qt application crash on your new pc or only that particular one you mentioned?

Jake007

Did you try to start you application in a debugger and left it running until it crashes?
Just to see where it brakes if the debugger can catch the error.

Jeroentjehome

And what are the differences between the Win7 and WinXp? 32 bits / 64 bits? Bit more information needed.

romeo.rbw

Thanks for replies

Other Qt application running well. Only this application, but it is running well on the first computer.

-I tried running on Qt 4.8.0 for desktop-MSVC2010 (Qt SDK) Debug, after a minute there is a message: Debug Error...Module 4.8.0 ..File global\qglobal.cpp Line 2232, ASSERT: "bitmap" in file image\qnativeimage.cpp, line 117 (Press retry to debug the application).

I ran on Win7 Ent. 32 bit and in XP

Jake007

Try updating Qt to 4.8.3 or to 4.8.1. To see if it will fix the problem.
I don't have any other ideas except this one.

Is you application doing anything, or just showing GUI ( waiting for further user interaction) and then crash after a minute?

romeo.rbw

Hi thanks for reply,
My application doing capturing camera under QTime, the program looping based on capturing image and processing the image. The structure is :
@
void DialogApplication::doButtonStartClick(){
...
...
if(!mCapture.isOpened()) {
mCapture.open(0);
if(!mCapture.open(0))
return;
mCameraEventId=startTimer (20);
mCameraEventId2=startTimer (50);
}
}

void DialogApplication::timerEvent(QTimerEvent *event){
if( event->timerId() == mCameraEventId ){
QTime t;
t.start();
killTimer(mCameraEventId );
...
...
mCameraEventId = startTimer( MAX(20-t.elapsed(),10) );
}

if(event->timerId() == mCameraEventId2) {
QTime t;
t.start();
killTimer(mCameraEventId2);
....
....
mCameraEventId2 = startTimer(MAX(50-t.elapsed(),10));
}
}
@

I am using Qt Creator 2.4.1 based on Qt 4.7.4(32 bit) but in the Build I choose Qt 4.8.0 for Desktop MSVC 2010, is it okay?
Do you have reference to upgrade the SDK?
Thanks is advance.

Jake007

For Qt SDK, use "this":http://www.developer.nokia.com/info/sw.nokia.com/id/da8df288-e615-443d-be5c-00c8a72435f8/Qt_SDK.html link.

I assume you're doing everything multi threaded?

foreverbeyours

http://rnbmusic4you.blogspot.ca/2013/07/how-to-fix-windows-is-collecting-more.html