Re: [clearcanvas_dev] DicomClient.Store

[Iryna Gordon]

Hi Clinton,   This seems to have fixed the problem. Thanks for your help!   Iryna     ----- Original Message ----- From: Clinton Chau To: 'Iryna Gordon' ; dev@clearcanvas.ca Sent: Sunday, September 10, 2006 4:21 PM Subject: RE: [clearcanvas_dev] DicomClient.Store Hi Iryna,   I was investigating this problem. I think it might be related to a problem I myself am having. For some reason, a static variable used in the interop code that acts as a function pointer to a delegate in the managed world, is being set to something other than NULL, even though it is initialized to NULL, and there is no indication that any code is setting it to a non-NULL value. Because it’s non-null, the interop code thinks that a valid delegate has been registered for calling with progress information.   This line inserted into the DicomClient constructor should be an adequate workaround:               // same goes for the store scu callback helper             _storeScuCallbackHelper = new StoreScuCallbackHelper(this);   It should be obvious where this should go. This registers the callback function pointer with something that actually exists, but no hooks have yet been provided for actually receiving an Event from this delegate at this point.   Clinton   --- The contents of this email, including any files transmitted with it, are confidential and are the sole property of ClearCanvas Inc., intended solely for the use of the individual or entity to whom they are addressed. Disclosure of the information contained herein without the express written consent of ClearCanvas Inc. is strictly prohibited.   From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Iryna Gordon Sent: September 1, 2006 5:02 PM To: dev@clearcanvas.ca Subject: [clearcanvas_dev] DicomClient.Store   (Sorry if this is a double post - I'm not sure if my previous one was properly sent as my mail server is acting up)     Hi there,   I have a question about DicomClient.Store which my code uses. I'm trying to store a series containing a single CT image on our test server, but the problem is with     association.SendCStore(interopFilenameList)   which throws an exception. Here's what I get in the output:   First-chance exception at 0x00000000 in StudyScout.exe: 0xC0000005: Access violation reading location 0x00000000. First-chance exception at 0x79eea7c3 in StudyScout.exe: 0xC0000005: Access violation reading location 0x00000000. First-chance exception at 0x79eea7c3 in StudyScout.exe: 0xC0000005: Access violation reading location 0x00000000. A first chance exception of type 'System.AccessViolationException' occurred in ClearCanvas.Dicom.OffisWrapper.dll An exception of type 'System.AccessViolationException' occurred in ClearCanvas.Dicom.OffisWrapper.dll but was not handled in user code Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.   I stepped through the DicomClient.Store code and the three OfStringVector lists (filepaths, sop class uids and transfer syntax uids) seem to be set properly. It seems like a null pointer problem inside the OffisWrapper... Has anyone encountered this before? Any ideas about how to fix this will be very much appreciated!   thanks in advance, Iryna

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