In DLL i have written the code for Context menu in vs2010 using COM
i derived the class CRsEraser : public IContextMenu, public IShellExtInit
this IShellExtInit and IContextMenu is are com class
when use it
CRsEraser *pCmpnt = new CRsEraser;
if (pCmpnt == NULL)
HRESULT hr = pCmpnt->QueryInterface (iid, ppv);
// Release the IUnknown pointer
CRsEraser *pCmpnt = new CRsEraser;this part showing its abstract class .
in 32 bit compile its working fine same when configure to 64 bit its throwing the error what i have mention earlier .
how i configure:
1 Open your Visual C++ Solution
2 Choose Build->Configuration Manager menu
3 Inside the Configuration Manager window, change the ‘Active solution platform’ to x64. If you don’t have any, you would need to create one by selecting the ‘New..’ drop down item. Copy settings from your Win32 platform.
4 Now rebuild your solution.
Error 1 error LNK2019: unresolved external symbol EnterStub referenced in function EnterNaked2
Error 2 error LNK2019: unresolved external symbol LeaveStub referenced in function LeaveNaked2
Error 3 error LNK2019: unresolved external symbol TailcallStub referenced in function TailcallNaked2
How to solve this
Look at the error messages. They are telling you that certain external functions that you reference cannot be found within the project. Find out where these are supposed to be defined and ensure that they are externalised.
I was a graduate student in Tsinghua University in China.
I'm programming about NC Code Simulation System.
In this program, I used OpenCSG Library to perform a Solid Modeling.
By the way, the sample program supported by library which is programmed in Win32 App, is well operate, but the program that I produced in MFC doesn't well operate. The error is that OpenCSG doesn't draw solid.
How to use OpenCSG Library in MFC?
I have created a console application (.exe), and we have used SetConsoleCtrlHandler for signal handling i.e. "CTRL + C" and Log Off and Shutdown Events.
We are properly able to handle the "CTRL+C" event but Logoff and Shut down events cannot be handled properly.
Following content is mentioned at MSDN:
The system generates CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and CTRL_SHUTDOWN_EVENT signals when the user closes the console, logs off, or shuts down the system so that the process has an opportunity to clean up before termination. Console functions, or any C run-time functions that call console functions, may not work reliably during processing of any of the three signals mentioned previously. The reason is that some or all of the internal console cleanup routines may have been called before executing the process signal handler.
Please suggest how we can properly handle Logoff and shutdown event by our console application.
Or please suggest any other technique (if available) for handling the logoff and shutdown event by the console based application.
In .NET we have the System.IO namespace providing convenient classes for Sockects and Pipes which ay be used for interprocess communication. How can one implement this in oldskool VC6?
My requirements are as follows.
I am writing a plugin for some legacy software for which there is a SDK which I can only get to compile with VC++6.0 compiler. I want to interface this code with both .NET and JAVA. I was thinking of implementing either a Socket server or Namedpipe in C# to act a a bridge between the VC6 code and .NET/JAVA. Requests from VC6 would be in the form of byte arrays and the C# bridge would interpret these requests, route them and eventually reply to the VC6 code which is awaiting a response.
In summary I would like examples of the following in VC++6:
- Use of threads
- Socket/Pipes (or any other interproc comms method)
- Invoking a process (other than a shell call to an executable)
Exactly what I wanted. Whenever I search msdn I seem to find it have to get relevant results. my only realy experience it with .NET/JAVA and therefore when looking I'm a little non-plussed when it comes to C++/MFC and what is possible.
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