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Re: Failing to register custom ActiceX control Prakash Nadar29-Dec-03 0:26 Prakash Nadar 29-Dec-03 0:26  Use Depends.exe that comes with visual studio to check wheather your module is able to get all the dlls that it depends on. i.e ? against a certain dll means that dll is not accessible and hence the registeration is failing. My God is more powerfull Than Your God. (the line that divides the world) Re: Failing to register custom ActiceX control Nitron29-Dec-03 11:06 Nitron 29-Dec-03 11:06  I may be stating the obvious, but did you try regsvr32 "C:\YourFullyQualified\PathToOcx\yourocx.ocx" ? ~Nitron. ññòòïðïðB A start Re: Failing to register custom ActiceX control Raghunandan S29-Dec-03 16:41 Raghunandan S 29-Dec-03 16:41  Hi All, Thanks for your answers.regsvr32 was not able to find one of the dependent modules.I had to copy both to a specific folder and register using absolute path of my ocx file Thanks once again Raghu Using CDatabase * in dll gabriel dina28-Dec-03 23:13 gabriel dina 28-Dec-03 23:13  Dear all, In the main application I use CDatabase to connect to SQlServer.After this, I pass the pointer to a variable in a dll using a function. When I try to use ExecuteSQl or I try to open a CRecordset, the program fail with access violation in release version. If I use the debug version of the main program and the dll everything is fine. Can you help me please with a solution to this issue? Thank you very much. Re: Using CDatabase * in dll David Crow29-Dec-03 3:02 David Crow 29-Dec-03 3:02  Are you checking the pointer against NULL before dereferencing it? A rich person is not the one who has the most, but the one that needs the least. Re: Using CDatabase * in dll gabriel dina29-Dec-03 3:08 gabriel dina 29-Dec-03 3:08  Yes, the pointer is null in release version.... I don't have any ideea why... Re: Using CDatabase * in dll gabriel dina29-Dec-03 3:34 gabriel dina 29-Dec-03 3:34  Sorry, the pointer is not NULL...I have tested a diffrent pointer there. The IsOpen() member of CDatabase work OK.The ExecuteSQL does not work I get an can not read at specified adress... Re: Using CDatabase * in dll gabriel dina29-Dec-03 4:05 gabriel dina 29-Dec-03 4:05  In the main program I use CCriticalSection and I submit the pointer to the dll. If I try to ust m_db->ExecuteSQL("SELECT * FROM TABLE1") in the dll I got the message "Connection in use".Why? msout headers BaldwinMartin28-Dec-03 23:05 BaldwinMartin 28-Dec-03 23:05  Hi What service pack does msoutl85.h msoutl9.h and msoutl.h and their libs come in please? Best Wishes and Happy Holiday's, ez_way OnDraw with CHtmlView Anonymous28-Dec-03 21:56 Anonymous 28-Dec-03 21:56  I have a problem: I have a single document based MFC application for viewing images. At first I used CScrollView as base class, which worked well with formats supported by IPicture and tiffs. But now I would like to see also PDF -files, which seems to be possible with CHtmlView, it simply opens an Acrobat reader and attaches it into the form with navigate2 -function. But if I use navigate2 -function for bitmaps and tiffs, they don't seem to be attached to the form, but they'll be opened in a window of their own. And if I use the Render function of IPicture to draw images onto the form, they just flash on the screen and then disappear. It seems that the OnDraw() -function of CHtmlView won't be called automatically. Could anybody help me with this? Thank you. Re: OnDraw with CHtmlView Shog929-Dec-03 9:44 Shog9 29-Dec-03 9:44  As i understand it, CHtmlView hosts whatever OLE ("Active") documents necessary to display what is navigated to. So, if a particular machine is not configured with appropriate viewers for a given file type, it will open externally. Think of it as having IE embedded in your app - there's surprisingly little difference. As for drawing over it - n'uhuh. Don't be trying to do that. First, it won't work. Second, even if it did, it would be quite wasteful. If you are going to be drawing the view yourself, then you don't have any use for CHtmlView anyway - CScrollView will work just fine. There's no reason you can't use whichever view is most appropriate for a given file at runtime. Z no one puts flowers on a flower's grave atof conversion in unicode available?? FASTian28-Dec-03 21:53 FASTian 28-Dec-03 21:53  i need to know if conversion for atof is available in unicode atoi is _ttoi atol is _ttol atof is ? Re: atof conversion in unicode available?? dan o28-Dec-03 22:09 dan o 28-Dec-03 22:09  hi, CString strCurrent; strCurrent = _T("25.5"); //atof(strCurrent); double dValue = 0; _stscanf(strCurrent, TOFLOAT, &dValue); good luck... dan o Re: atof conversion in unicode available?? PJ Arends28-Dec-03 22:17 PJ Arends 28-Dec-03 22:17  you can use strtod() instead of atof(). It's TCHAR macro is _tcstod() Sonork 100.11743 Chicken Little "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 Within you lies the power for good - Use it! Re: atof conversion in unicode available?? FASTian28-Dec-03 23:17 FASTian 28-Dec-03 23:17  thanks guys. Appreciate your help Re: atof conversion in unicode available?? Joe Woodbury29-Dec-03 6:40 Joe Woodbury 29-Dec-03 6:40  _tstof Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke how i read and write to com port inVC++ Tahir12328-Dec-03 21:35 Tahir123 28-Dec-03 21:35  i am new to VC.i want complete information with all possible codes so that i can use com port for serial programming.please also tell me how i check that data is written and read from com port when no device is attached to it. tahir Re: how i read and write to com port inVC++ benben28-Dec-03 21:46 benben 28-Dec-03 21:46  it is very easy if you want to use MSCOMM.For test, you can use two com port on your PC, one for sending and the other for receiving.(And you should connect the two com port before you test.) Thanks Benben Re: how i read and write to com port inVC++ Monty228-Dec-03 21:47 Monty2 28-Dec-03 21:47  You can use CreateFile to open the com port and write to it as you would write to a file Here is a Link to a wonderfull sample on serial communication with sample code Hope it helps Mttty Sample[^] Data arrival can be handled as an event , so that you know whenever data arrives on com port Live as if your were to die tomorrow. Learn as if you were to live forever. -Mahatma Gandhi Re: how i read and write to com port inVC++ YaronNir29-Dec-03 4:44 YaronNir 29-Dec-03 4:44  you simply use CreateFile (.....) and WriteFile(....) (one of the parameters will be your COM port) read the MSDN for the correct parameters.... hope this helps ya Yaron Ask not what your application can do for you, Ask what you can do for your application a problem about how to use a class in dll benben28-Dec-03 21:11 benben 28-Dec-03 21:11  Hi: In my programme,I use some classes in a dll.When I try to compile it, VC give out such errors: error C2487: 'classCWinAppEx' : member of dll interface class may not be declared with dll interface error C2487: 'classCMyMenu' : member of dll interface class may not be declared with dll interface (CWinAppEx and CMyMenu are declare and implemented in the dll) and all these errors are point to the line "DECLARE_DYNAMIC( CWinAppEx )" or "DECLARE_DYNAMIC( CMyMenu )". I look up this error in MSDN, but didn't find the solution.Could anyone give me some idea? Thanks Benben Re: a problem about how to use a class in dll ashxly28-Dec-03 21:19 ashxly 28-Dec-03 21:19  try to use __declspec(dllexport) while declare class Exa: #define EXT_CLASS __declspec(dllexport) class EXT_CLASS ClassA : public X { ... }; Re: a problem about how to use a class in dll benben28-Dec-03 21:38 benben 28-Dec-03 21:38  Thanks.I have used this macro in the dll. And thses errors only occour when I try to compile one certain file(when I compile the other files, VC doesn't give out these errors). Thanks Benben Re: a problem about how to use a class in dll benben29-Dec-03 2:53 benben 29-Dec-03 2:53  and I find that these errors only occur when the cpp files in EXE project have such line: #undef AFX_DATA #define AFX_DATA AFX_DATA_EXPORT Maybe it conflict with the static functions or something else in the dll.How to resolve this problem? Could anyone give some idea？ Thanks Benben ActiveX problem FASTian28-Dec-03 20:41 FASTian 28-Dec-03 20:41  hey ppl i've been getting this wierd error when i try to add an event to the the activeX control as soon as i hit the add event button it says "Error adding a(n) event to the associated class" anybody know how to correct this? thanks

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