Hi,After upgrading to LW/CVI 2009 I´v got massive problems with general protection faults. The system stops with a GPF message or hangs when calling functions from the User Interface Library.I found the cause in a combination of DuplicateCtrl() and DiscardPanel() function calls in a code sequence used for creating reports and printouts.Base code without any error handling is:#define HEIGHT 110.0F /* mm */#define WIDTH 140.0F /* mm */#define DPI 300.0F /* Dots per inch */ int height,width;int hiResPanel,hiResGraph;int bmpId;width = (int)(WIDTH * DPI / 25.4F);height = (int)(HEIGHT * DPI / 25.4F); // Loading a blank panelhiResPanel = LoadPanel(0,"report.uir",HIRES);// Duplicate the graph controlhiResGraph = DuplicateCtrl(loResPanel,LORES_GRAPH,hiResPanel,"",0,0);// Size panel and graphSetPanelAttribute(hiResPanel,ATTR_HEIGHT,height);SetPanelAttribute(hiResPanel,ATTR_WIDTH, width);SetCtrlAttribute(hiResPanel,hiResGraph,ATTR_HEIGHT,height);SetCtrlAttribute(hiResPanel,hiResGraph,ATTR_WIDTH, width);RefreshGraph(hiResPanel,hiResGraph);// Get a panel bitmap and save it to diskGetPanelDisplayBitmap(hiResPanel,VAL_FULL_PANEL,VAL_ENTIRE_OBJECT,&bmpId);SaveBitmapToBMPFile(bmpId,"Temp.bmp");DiscardBitmap(bmpId);// Discard PanelDiscardPanel(hiResPanel);// Insert the bitmap into Word document or List & Label project template.....Executing the sequence above will lead to GPF in one of the next UI Lib functions if the duplicated control is a graph with Data Mode 'Retain' and option 'Copy original plot data' active.Tracking the sequence in the Resources Window gives the following results:- I can see the resources for the loResGraph and it´s plots before duplicating the graph control.- The resource of the hiResGraph appears after DuplicateCtrl() but no resources for plots in it.- When discarding the hiResGraph the plot resources of the loResGraph will be released !!!I looks like that releasing the plot resources from the source graph control when discarding the copied graph control is responsible for the GPF´s.Currently I can´t release my application to my customers.Any ideas/workarounds ?RegardsBernhard

LabWindows/CVI

CVI 2009 More General Protection Faults

Yes, there is a patch that fixes this problem. It just went live today. I was just about to post a notice to this effect in a new thread in the forum.

The patch information is here.

Luis

Message 11 of 11

(868 Views)

LabWindows/CVI

CVI 2009 More General Protection Faults

Re: CVI 2009 More General Protection Faults