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You are welcome.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I'm working on an application that processes several kinds of file formats. The parsing and processing of the format take place in external plug-in libraries, implemented as DLLs. The parsers and processors are COM objects, implementing a few simple custom interfaces.
The problem is this: When importing files into the application we use a wizard with three pages (Select File->Define Settings->Finish). The first page of the wizard finds the correct external library to use for the file provided by the user, and then the library should create the second page with settings that apply to this file format only. This is where I get stuck.
One option would be to let the libraries add the page with something like this:
HRESULT GetPropertyPage(PROPSHEETPAGE** ppPage); However, the server application is implemented in MFC, and CPropertySheet doesn't play very well with the PROPSHEETPAGE struct. As far as I can see, there's no way to construct a CPropertyPage around a PROPSHEETPAGE. This solution would require that the first and last pages are implemented without MFC (not a major problem, but inconvenient).
Another option would be to venture into the world of IPropertyPage and other pre-defined interfaces. I have absolutely no idea on what to choose here, any input would be appreciated.
Thanks
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Hi,
I have some code in Visual C++, which I had earlier compiled using Visual Studio 6.0, and it compiled and linked fine. But the same code which I converted to VS 2005, is giving me this error 2440, as follows:
error C2440: 'specialization' : cannot convert from 'BOOL (__stdcall *)(LPCSTR,UINT_PTR)' to 'BOOL (__cdecl *const )(const char *,UINT)'
I think this is the error regarding the calling convention. Could somebody resolve this problem for me?
Thanks in advance.
Sanjay Khapre
Software Developer
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SanjaySMK wrote: Could somebody resolve this problem for me?
It would help a lot if you provide some code (how you declared your function, the expected prototype, ...) 
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can we use this grid in vs 2003
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I'm using the VS 2008 MFC feature pack. ... Here ON_NOTIFY_REFLECT is not working can any one suggest the alternate for this messageHandler.
I tried with AFX_WM_RESETTOOLBAR but it is not working...
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How about ON_CONTROL_REFLECT?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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I have only the process name with me. I don't know how to get the process handle or the process id from the process name. Any api to fetch this.
Thanks..
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How did you get its name? you can use of CloseHandle but you need to a handle.
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I can see it in the task manager. I need its handle for PID programmatically
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I think its better use of EnumWindow it gives you hwnd for each window and then you can use of SendMessage(hWnd,WM_CLOSE,0,0); for close that program.
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Try GetModuleHandle(process_name);
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Closing a process HANDLE using CloseHandle doesn't kill the process.
Steve
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Does this[^] article help?
Regards,
Sandip.
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At first you may be attempted to do something like the following:
DWORD CProcessList::Toolhelp32FindProcess(TCHAR szModuleName)
{
HANDLE hSnapShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
PROCESSENTRY32 processInfo;
processInfo.dwSize=sizeof(PROCESSENTRY32);
while(Process32Next(hSnapShot,&processInfo)!=FALSE)
{
if(0 == _tcscmp(szModuleName,processInfo.szExeFile)
{
return processInfo.th32ProcessID;
}
}
CloseHandle(hSnapShot);
return -1;
}
But unfortunately there can be multiple instances of the same PE images executing concurrently. To be certain that you are targeting the correct one you will also require a window handle.
You can have a look at a previous post to see How to Find a PID from a window handle[^].
Hope it helps,
-David Delaune
At first
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Hi all,
I have a problem with multithreading I want to make a dialog in a new thread. And I want to paint in this dialog a scale view of what is painted in the parent window (of an MDI application) . I have studied the MSDN reference but still now is not clear to me how to do this. So my questions are:
1- Where can I find some sample that fit my necessity?
2- I have to start a UI Thread or a work thread?
3- If this is simple can anyone give me some little indication on where to start?
Thank you in advance for your help
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No really an answer to your question, but a tip:
Try to avoid multithreading if possible  . For almost all situations, the CWinApp::OnIdle can be used for doing things in the background. I personally strongly think that multithreading is for drivers and low-level system software only.
Regards,
Mattias
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Thank you for your answer mattias.
So if I had understood well to make the dialog That I have to do you think that it is better to do a modeless dialog?
I wanted to use multithreading in my application in order to make pratice with multithreading. That's because the next task I had to reach with my software is the link of the user interface with a hub that will pass the information required to the interface. You think that I will do this only by using CWinApp::OnIdle?
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Yes, I think that you could accomplish that with OnIdle, and probably easier and more robust than with multithreading. In the implentation of OnIdle, check for changes in the datasource and update user interface accordingly. Or, if the changes in data aren't that frequent, you could even get by using a timer (SetTimer and handling WM_TIMER)
But if you want to get some experience using threads, go ahead! I would recommend doing it the "hard" way without any help from any class libraries, look for CreateThread in the Win SDK. A short sample is: http://msdn.microsoft.com/en-us/library/ms682516(VS.85).aspx[^]. But I can guarantee that you will end up with lots and lots of debugging problems and very complicated code
Cheers
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Thank you!
I will prove your solution I hope that I can do anything without any addictional thread but I think that for the connection whit the hub at the end I will have to develop at least one additional thread besides the main thread because if I have understood well the OnIdle (that I'm studying right now) if I put in this function an infinite loop that listen the hub messages I will block the User Interface . And unfortunately I think that I have to do a never ended loop. So I think that for this task I will use your advise and instead of AfxBeginThread I will use the "hard way" to make multithreading . Thank you again
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Why do you need a new thread?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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In the case that I have posted in the first post only to make practice with multithreading (I know that I can do the dialog with the characteristics required also with a simple modeless dialog). In the second situation that I have described (the connection with an hub) instead I want to make a thread that listen continuosly to the hub (that receive an send message to six linked servive) and than communicate to the main thread any message of interess. In my company we are developing a multiservice software and I'm developing the User interface of it.
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Laan82 wrote: I want to make a thread that listen continuosly to the hub...and than communicate to the main thread any message of interess.
Use PostMessage() for this. Don't put UI components in the secondary thread(s). See here for more.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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