View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0005636 | JEDI VCL | 00 JVCL Components | public | 2011-08-10 11:44 | 2011-09-21 14:10 |
| Reporter | Mad Cat | Assigned To | outchy | ||
| Priority | normal | Severity | crash | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | 3.40 | ||||
| Target Version | Fixed in Version | 3.45 | |||
| Summary | 0005636: JvBandObject NX/DEP memory protection error | ||||
| Description | Using JvBandObject with turned-on hardware and software DEP/NX causes an exception. According to this article http://blogs.msdn.com/b/ie/archive/2008/04/08/ie8-security-part-i_3a00_-dep-nx-memory-protection.aspx problem is, of course, in DEP/NX. | ||||
| Additional Information | Using a dirty little hack I forced it work. I've commented everything associated with hook (FHook, SetWindowsHookEx, UnhookWindowsHookEx) and it began to work. I don't know how to fix it properly =( | ||||
| Tags | No tags attached. | ||||
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2011-08-10 11:44
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JvBandObject.pas (34,276 bytes) |
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The faulty code is in the function MethodToProcedure, such code manipulation should be avoided in a DEP/NX enabled environment. |
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I don't know this part of the JVCL very well but I should be able to correctly fix the faulty stuff. Could you tell me how to rightly use a JvBandObject? |
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Thanks for feedback. Huh, I'll try to attach zip-file with sample project during next 12 hours. |
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2011-08-11 10:07
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BandTestProject.zip (10,644 bytes) |
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Project attached. I've watched 'MethodToProcedure' function body. Wha'da dirty hack used O_O |
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I can't say more... being investigated... |
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Everything is messed up in IE6 as soon as I install either your toolbar or a new one created from the expert. Which version of IE are you using? |
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As described in article above, this reproduced in IE8 and later. |
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Simply, delphi compiler have no option similar to '/NXCompat' that in MSVC compiler. I haven't found such. |
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oups did not notice it, I've just installed IE8 and it looks a little bit better. Except that the bar is not "docked": the form is displayed at the top of the screen on top of IE8... Anyway that's an other issue and I'll fix the DEP/NX stuff first. |
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I committed a patch in revision 13094 that should fix DEP/NX issues and keep the hook enabled. However, as I said before the toolbar is not docked in IE8, it is badly positioned at the top of the screen. But I do not know how to solve this issue yet, I could not find obvious errors while debugging the JvBand* units. Help is appreciated. |
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Bug fixed successfully. Tested. It works fine. Thanks=) About hard-fixed positioning. I think problem is in IE. Documentation in MSDN about creating tool-bars is poor and is already outdated. Besides, Microsoft didn't provide native managed (.NET) component for creating tool-bars! All I found is 3rd party library, written by an enthusiast. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-08-10 11:44 | Mad Cat | New Issue | |
| 2011-08-10 11:44 | Mad Cat | File Added: JvBandObject.pas | |
| 2011-08-10 19:22 | outchy | Note Added: 0018856 | |
| 2011-08-10 22:47 | outchy | Note Added: 0018858 | |
| 2011-08-10 23:57 | Mad Cat | Note Added: 0018859 | |
| 2011-08-11 10:07 | Mad Cat | File Added: BandTestProject.zip | |
| 2011-08-11 10:10 | Mad Cat | Note Added: 0018860 | |
| 2011-08-11 10:53 | outchy | Note Added: 0018861 | |
| 2011-08-11 11:54 | outchy | Note Added: 0018862 | |
| 2011-08-11 12:38 | Mad Cat | Note Added: 0018863 | |
| 2011-08-11 12:46 | Mad Cat | Note Added: 0018864 | |
| 2011-08-11 12:50 | outchy | Note Added: 0018865 | |
| 2011-08-11 13:22 | outchy | Note Added: 0018866 | |
| 2011-08-11 14:02 | Mad Cat | Note Added: 0018867 | |
| 2011-08-24 15:56 | outchy | Status | new => resolved |
| 2011-08-24 15:56 | outchy | Fixed in Version | => Daily / SVN |
| 2011-08-24 15:56 | outchy | Resolution | open => fixed |
| 2011-08-24 15:56 | outchy | Assigned To | => outchy |
| 2011-09-21 14:10 | obones | Fixed in Version | Daily / SVN => 3.45 |
