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I'm using WebBrowser control in a window inside a PowerBuilder 11.5 application. Everything works fine on IE7 and IE8 but the application crashes in IE9 under Windows 7 when you select an item in a tag. In IE7 and IE8 I added my application to registry key FEATUREUSEWINDOWEDSELECTCONTROL. In IE9 under Windows 7 64bits did the same and if the REGDWORD value that corresponds to my application is 1, the application crashes. If the value is 0, the application does not crashes but item selection with mouse is impossible. Analyzing errors and dump file, error occurs in the mshtml.dll file with an exception code 0xc0000005, including: mshtml!CDOMMouseEvent::PrepareEvent Any ideas? Update: My app is a 32bit app developed in Windows XP SP3.
Update 2: Exception code is 0xC0000005 (I think it's a memory access violation. Update 3: Seeking the reason for the error, I've developed an ActiveX control in C# based on the.NET WebBrowser control and I've replaced the Microsoft Web Browser of my PB app with the new one. It also crashes and only in PB, because in a WinForm application (with the same WebBrowser) everything works fine.
Using windbg to analyze dump file: FAULTINGIP: mshtml!CDOMMouseEvent::PrepareEvent+5 8b39 mov edi,dword ptr ecx EXCEPTIONRECORD: 00185f70 - (.exr 0x185f70) ExceptionAddress: 62b40195 (mshtml!CDOMMouseEvent::PrepareEvent+0x00000039) ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter0: 00000000 Parameter1: 00000000 Attempt to read from address 00000000 PROCESSNAME: PB115.EXE ERRORCODE: (NTSTATUS) 0xc0000005 - La instrucci n en '0x%08lx' hace referencia a la memoria en '0x%08lx'. La memoria no se puede '%s'.
EXCEPTIONCODE: (NTSTATUS) 0xc0000005 - La instrucci n en '0x%08lx' hace referencia a la memoria en '0x%08lx'. La memoria no se puede '%s'. EXCEPTIONCODESTR: c0000005 EXCEPTIONPARAMETER1: 00000000 EXCEPTIONPARAMETER2: 00000000 READADDRESS: 00000000 FOLLOWUPIP: mshtml!CDOMMouseEvent::PrepareEvent+5 8b39 mov edi,dword ptr ecx WATSONBKTPROCVER: 11.5.0.2506 WATSONBKTPROCSTAMP: 489933bc WATSONBKTMODULE: mshtml.dll WATSONBKTMODVER: 9.0.8112.16446 WATSONBKTMODSTAMP: 4fb58407 WATSONBKTMODOFFSET: 230195 BUILDVERSIONSTRING: 6.1.7601.17514 (win7sp1rtm.1) There may be some incompatibility between PB11.5 and Windows 7 64 bit + IE9? Thanks in advance.
Our Sybase Powerbuilder application contains an embedded Microsoft Web Browser control, accessing web pages on a local webserver. After installing IE7, dropdown controls within embedded web pages are no longer selectable. The options appear, but none are clickable. I have stripped the html code to a bare minimum, so it does not appear to be related to this. I have also tried noddy apps in various versions of Powerbuilder with the same results. On a machine with IE6 however, all is fine. Our customers have recently installed IE7 with the same result in the deployed application, and have had to revert to IE6 to resolve the problem.
I have seen various issues with the IE7 install affecting VB6 apps, relating to shdocvw.dll and ieframe.dll, and there is a difference in the registry entries for the Microsoft Web Browser class between IE6 installs and IE7, however nothing I try seems to make a difference. Additionally, the simple test web page works fine within a newly created VB6 application. Can anyone help? Thanks in advance Andy. I don't have powerbuilder, but I think you can have change the behavior of the webbrowser control by implementing::GetHostInfo in your webbrowser (probably in your form class). There are two flags introduced in the that are related to select control. One is, and the other is.
Implement IDocHostUIHandler::GetHostInfo in your webbrwoser host and set flag in the structure passed in the parameter, then see what happens. If you don't know how to implement this in powerbuilder (nor do I), try the ActiveX control documented in.