|
I have created a .net C# service and i am calling the service in COM.
Code below fails on CoCreateInstanceEx returns
hresult = 0x80040154,Class Not Registered.
CoInitialize(NULL);
CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_NONE,
RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL);
COSERVERINFO serverInfo;
ZeroMemory(&serverInfo, sizeof(COSERVERINFO));
COAUTHINFO athn;
ZeroMemory(&athn, sizeof(COAUTHINFO));
// Set up the NULL security information
athn.dwAuthnLevel = RPC_C_AUTHN_LEVEL_NONE;
athn.dwAuthnSvc = RPC_C_AUTHN_WINNT;
athn.dwAuthzSvc = RPC_C_AUTHZ_NONE;
athn.dwCapabilities = EOAC_NONE;
athn.dwImpersonationLevel = RPC_C_IMP_LEVEL_IMPERSONATE;
athn.pAuthIdentityData = NULL;
athn.pwszServerPrincName = NULL;
char *HostName = GetHostName();
//char *IP = GetHostIP();
USES_CONVERSION;
serverInfo.pwszName = A2W(HostName);
//serverInfo.pwszName = A2W(IP);
serverInfo.pAuthInfo = &athn;
serverInfo.dwReserved1 = 0;
serverInfo.dwReserved2 = 0;
MULTI_QI qi = {&__uuidof(IMyInterface), NULL, S_OK};
IMyInterfacePtr* m_pIPtr;
try
{
m_pIPtr = new IAEMMainPtr;
}
catch(...)
{
::MessageBox(NULL,"Object Fails","MyClass",MB_OK);
return;
}
HRESULT hResult = CoCreateInstanceEx(__uuidof(_MyClass), NULL,
CLSCTX_LOCAL_SERVER | CLSCTX_REMOTE_SERVER, &serverInfo, 1, &qi);
if (FAILED(hResult))
{
delete m_pIPtr;
m_pIPtr = NULL;
::MessageBox(NULL,"CoCreateInstanceEx Fails","MyClass",MB_OK);
return;
}
m_pIPtr->Attach((IMyInterface*)qi.pItf);
(*m_pIPtr)->GetString(pRetVal);
CoUninitialize();
Sathish
|
|
|
|
|
Hi there,
Is there any other way of implementing asynchronous serial communication in Visual C++ than the MFC way. The MFC way is too time consuming.
I so far have seen that _inp and _outp are only for WIN95 platform.
Any suggestions will help.
Thanks.
|
|
|
|
|
You can use CreateFile and the Win32 Communications API which contains functions like BuildCommDCB(...) etc.
|
|
|
|
|
Thanks for the reply.
Yes, you're right CreateFile() and the WIN32 Comms API can be used.
My problem is that I receive data that is between 40 and 45 bytes in length far too late. The instrument on the other side sends the data at 9600 baud every 100ms. My program must receive it by 65ms.
At the moment the data is received it at approximately 80ms, which is way too late. I have used the CreateFile() and ReadFile() with the necessary time-out, threads and event operations to read the data.
I also wrote a utility in Delphi which seem to work fine (54ms). Unfortunately the code must be in C++ as it fits into a bigger Visual C++ program.
Any ideas.
Thank again.
|
|
|
|
|
My application have to offer a dialog to select a file to be deleted.
I've tought to CFileDialog but it is useful only to open or to save a file.
Is there a way to have a dialog to browse files in order to select a file to be deleted ?
Thank you very much !
|
|
|
|
|
You can just use CFileDialog to select the file, by just display the "Open" dialog and with the filter flags OFN_HIDEREADONLY | OFN_FILEMUSTEXIST and just change the title of the dialog (I think there is a member function to do that) or that a look at m_ofn member data.
|
|
|
|
|
You can still use a File Open dialog to ask for a file name to be deleted; you'll need to change the title and the caption on the action button to Delete.
To change the title, set the m_ofn.lpstrTitle member. Changing the action button's caption is harder: I think you'll have to create a hook procedure which handles WM_INITDIALOG; in the handler, call SetWindowText for the button with the IDOK control ID (which you can get with GetDlgItem).
Stability. What an interesting concept. -- Chris Maunder
|
|
|
|
|
I would use CFileDialog to select the file, show the path in an editbox and let the user press delete.
This way the user can rethink his/her decision.
so my advice would be:browse button to select (show path in editbox)
delete button for the obvious action of deleting the selected file;)
MessageBox to confirm.
hope it helps.
"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix
|
|
|
|
|
here your solution->
Use this little Piece of code
CFileDialog a(TRUE);
a.DoModol();<br />
CString sr=a.GetPathName();<br />
::Unlink(sr);
-----------------------------
"I Think It will Work"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk
|
|
|
|
|
I created a MFC dll in which I created a dialog and i placed a OCX over it.But when i domodal that dialog from a exe the dialog is not displaying but when i remove the ocx control the dialog is displaying properly.what will be the problem?
thanks,
john
|
|
|
|
|
Sounds like AfxEnableControlContainer() has not been called?
"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen
|
|
|
|
|
hi,
i want to include any animated images(.gif) into richedit box. Is it possible or not.if, tell me how it can be done.
thank you.
|
|
|
|
|
I m building my own installer,
and want to install my application at client machine . where VC++ is not installed .. wt dll's r required or files required to sent with my EXE ... ,, that build was using static Link library n Release mode configuration. r they ( files/dll)differ with operating system version Win 98 / XP /2000
or any other way
thanx
|
|
|
|
|
The easiest way to find which DLLs are required by your program is to use the application Depends.exe
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
|
|
|
|
|
Hi
I have created three property-page(Page1,Page2 and page3)on a property sheet.Now I want to set the font to the arial 24 of static text on page1 and I want to change the background colour of static text box on page 1.
How do I write code on page1 to have arial 24 font?
rajesh
|
|
|
|
|
|
Hi,
I want to do one project based on interface between external hardware and system. for that i need one API ( system function) which will connect to the port. Through that requesting to the hardware and getting respond from it.
|
|
|
|
|
The key question is WHAT is the interface you plan to use ? COM port ? Printer port ? USB port ? PCI bus ? IrDA port ?
APIs and system functions are not the same thing. Win32 API (application programming interface) offers access to a limited set of Win32 platform functions (functions that can command the operating system).
Be more specific on the project if you want us to help. We can't help you unless we know what you wish to do 
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
Hi,
I isn't know what it done, but I runned sysutil from Alok and is desktop now blank, and things not work. Was this program a trojan? What is done? I way to fix what broke?
|
|
|
|
|
Based solely on the context and professionality of the article in question, I decided not to even download/run this application on my computer. Basically, it seems you have locked yourself out from your own computer by using a software incorrectly. I believe, however that it is not a virus. It's just a software that locks/disables features from your computer and you've used it incorrectly.
For an attempt to fix it, run your computer in Safe Mode, then run the Sysutil again. This time, enable ALL options, and allow access to ALL hard drives. Then reboot. If this fixes the problem, then DELETE the Sysutil program, run a virus scanner on your machine, and NEVER install or run a software that you don't know, or can't find a proper manual/details to.
All in all, all you can blame now is yourself. 99% of viruses loose out there spread because of actions taken by the users. If every people suddendly knew how to use a computer properly and what files/file extensions/web sites should be avoided, then the virus writers would have a much harder time indeed...
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
Thanks for your advises on what is need to do.
Antti Keskinen wrote:
All in all, all you can blame now is yourself.
I know. But is meaning that should never be run any programs from CodeProject? When is OK to try, and when is not OK?
I wanted to seeing how is works this program, and I realized too later that is not seeming to be OK. Now, I is afraid to be trying programs.
|
|
|
|
|
hello buddy,
i see,you are facing problem using my SysUtil.
i think you have applied the hiding desktop icon restriction.
now here is solution->
1->first logon to computer with that user where restriction is applied.
2-Run sysutil again and uncheck every check boxes you see there in s/w.
3.click on apply/disapply button
4.logooff the computer.
and every thing will work fine.
thanks for using my S/W.
-----------------------------
"I Think It will Work"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk
|
|
|
|
|
Alok the programmer wrote:
2-Run sysutil again and uncheck every check boxes you see there in s/w.
3.click on apply/disapply button
Why is unchecking? Is not I want to check the boxes that I want to apply? What is check marking for? Is select? Or is something else?
|
|
|
|
|
quzi wrote:
Why is unchecking? Is not I want to check the boxes that I want to apply? What is check marking for? Is select? Or is something else?
Here your solution,the checked boxes showing the restriction u applied on your computer using my software when you uncheck that box and click apply disapply button ,it will remove that restriction.
after that reboot your system,and you will see you desktop.
pls not : you can direclty contact me before publically insulting me abt my software,i am system programmer i thoughly researched on my s/w before posting it on CP.
-----------------------------
"I Think It will Work"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk
|
|
|
|
|
Alok the programmer wrote:
pls not : you can direclty contact me before publically insulting me abt my software,i am system programmer i thoughly researched on my s/w before posting it on CP.
Is very sorrow that you think was insult. I asked question on what happened? Is excuse?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
