View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0004859 | JEDI VCL | 00 JVCL Components | public | 2009-07-09 16:19 | 2009-09-23 16:48 |
| Reporter | korecek | Assigned To | obones | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | 3.37 | ||||
| Target Version | Fixed in Version | 3.39 | |||
| Summary | 0004859: C++ Builder ambiguity when TBitmap is in the parameters of an event handler | ||||
| Description | Inside TJvPluginManager, there is incompatibility problem in function prototype of the OnNewCommad Event function which show errors: [C++ Error] PlugInDemoU.h(49): E2015 Ambiguity between 'TBitmap' and 'Windows::TBitmap' [C++ Error] PlugInDemoU.cpp(102): E2015 Ambiguity between 'TBitmap' and 'Windows::TBitmap' Function prototype is following: void __fastcall uilPluginManagerNewCommand(TObject *Sender, AnsiString ACaption, AnsiString AHint, AnsiString AData, TShortCut AShortCut, TBitmap *ABitmap, TNotifyEvent AEvent); I checked BCB Compatibility Guide and I think that it could be already described problem. (... "{$HPPEMIT '#define SOMETYPE SomeDomain::SOMETYPE'}" ) | ||||
| Additional Information | This happens for the following event handler types: JvClipboardViewer.TJvOnImageEvent JvgListBox.TglOnGetDragImageEvent JvPluginManager.TNewCommandEvent JvXPBar.TJvXPBarOnDrawItemEvent | ||||
| Tags | No tags attached. | ||||
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2009-07-09 16:49
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SimplePluginBCB.ZIP (11,973 bytes) |
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I little experimented and I am not able to find any simple solution. What is worse during my tests I found very same problem in another component. It is TJvXPBar component and its OnDrawItem Event. The OnDrawItem Event function also has TBitmap parameter and if I add this Event function into the project I also got error : E2015 Ambiguity between 'TBitmap' and 'Windows::TBitmap' At the moment I thing that it is not only JvPluginManager problem but it is more general problem in OnEventXXX function interfaces (if there is used TBitmap *ABitmap parameter.) |
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Just so you know, I just tried to drop a JvXPBar under BCB2006, I did not have such problem. This seems to be very specific to C6 |
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Ok, I tried with your sample application. To fix the issue, just add this line: #define TBitmap Graphics::TBitmap It needs to be added in PlugInDemoU.h just before the TForm1 declaration. I also tried creating a blank application in C6 and drop a TJvXPBar, and the same fix applies. I'm not sure it can be added in the generated hpp files though. |
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I have updated the issue title and additional details to mention the 4 instances where this happens in the JVCL. I'm looking for a solution, but nothing ideal came up yet. |
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> This seems to be very specific to C6 The definition of "#define TBitmap Graphics::TBitmap" as you described works quite in BCB6 but also in BCB2006. (I experimented in the file too but bad way and on bad place ... :-( ) BCB2006: 1. First I added following conditional definition into PlugInemoU.h : /* Use definition only in BCB6 */ #if ( __BCPLUSPLUS__ <= 0x0564 ) #define TBitmap Graphics::TBitmap #endif 2. I added a new Command 4 into Plugin DLL 3. I create also same Simple Plugin project under BCB2006. (But not from blank project but converted from BCB6...) 4. I compiled both projects under BCB2006 and I got known above described E2015 error 5. I commented out #if .. and #endif rows and compilation under BCB2006 was successful. 6. Updated example included ... So I guess that the problem is most probably relative to BCB2006 too. |
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2009-08-13 22:56
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SimplePluginBCBx.ZIP (33,580 bytes) |
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Actually it shows up in all versions that I tested, that means C6, RS2006, RS2007 and RS2009 There is a solution, but it means changing the event handlers for everyone, including the delphi side. |
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TJvBitmap has been added in JvJVCLUtils and used instead of TBitmap. This solves the issue and is now in SVN |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-07-09 16:19 | korecek | New Issue | |
| 2009-07-09 16:49 | korecek | File Added: SimplePluginBCB.ZIP | |
| 2009-07-09 17:11 | obones | Assigned To | => obones |
| 2009-07-09 17:12 | obones | Status | new => assigned |
| 2009-08-12 16:20 | korecek | Note Added: 0015985 | |
| 2009-08-12 17:12 | obones | Note Added: 0015986 | |
| 2009-08-12 18:22 | obones | Note Added: 0015987 | |
| 2009-08-12 18:22 | obones | Status | assigned => feedback |
| 2009-08-12 22:43 | obones | Summary | JvPluginManager Compilation Error => C++ Builder ambiguity when TBitmap is in the parameters of an event handler |
| 2009-08-12 22:43 | obones | Description Updated | |
| 2009-08-12 22:43 | obones | Additional Information Updated | |
| 2009-08-12 22:44 | obones | Note Added: 0015988 | |
| 2009-08-13 22:54 | korecek | Note Added: 0015997 | |
| 2009-08-13 22:56 | korecek | File Added: SimplePluginBCBx.ZIP | |
| 2009-08-14 10:08 | obones | Note Added: 0015998 | |
| 2009-09-23 16:48 | obones | Note Added: 0016163 | |
| 2009-09-23 16:48 | obones | Status | feedback => resolved |
| 2009-09-23 16:48 | obones | Fixed in Version | => Daily / SVN |
| 2009-09-23 16:48 | obones | Resolution | open => fixed |
