ok sorry ..
the code i build in 32 bit its success but when i configure the VS 2010 for 64 bit the error message con not instantiate the
HRESULT IContextMenu::GetCommandString(UINT_PTR,UINT,UINT *,LPSTR,UINT)' : is abstract
see declaration of 'IContextMenu::GetCommandString'
why this conflict
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.
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.