C / C++ / MFC

/** Win32 CreateThread class wrapper */
class base_w32thread{
protected:
    HANDLE    _handle;
    DWORD    _dwTID;
    base_w32thread():_handle(0), _dwTID(0L){}
    virtual ~base_w32thread()=0;

public:
    bool start(LPSECURITY_ATTRIBUTES psecattrs = NULL, DWORD dwCreateFlags = 0L);
    operator HANDLE(){ return _handle; }
protected:
    virtual void run()=0;
    virtual void onEndThread(){}
    static long WINAPI threadfnc( LPARAM lp);
};

#include "StdAfx.h"

#include "base_w32thread.h"
#include <winbase.h>
#include <assert.h>

base_w32thread::~base_w32thread(){}

/** start the thread */
bool base_w32thread::start(LPSECURITY_ATTRIBUTES psecattrs, DWORD dwCreateFlags){

    assert( !_handle);
    if( _handle)
        return false;

    _handle = ::CreateThread( psecattrs, 0, 
        (LPTHREAD_START_ROUTINE)threadfnc, this, dwCreateFlags, &_dwTID);
    return (_handle)?true:false;
}
/** Thread function */
long WINAPI base_w32thread::threadfnc( LPARAM lp){

    assert( lp);
    base_w32thread* pThis = (base_w32thread*)lp;
    if( pThis)
        pThis->run();

    pThis->_handle = 0L;        // thread exited
    pThis->onEndThread();
    return 0L;
}

void CMyDlg::Process( void )
{
    // do whatever you need to in this non-static method
}
...
/* static */ UINT CMyDlg::Process( LPVOID pParam )
{
    CMyDlg *pDlg = (CMyDlg *) pParam;
 
    pDlg->Process();
 
    return 0;
}
...
AfxBeginThread(Process, this);

class CThreadDemoDlg : public CDialog
{
<font face="Courier New">   static UINT __cdecl MyThreadProc(LPVOID pParam);</font>   
protected:
   <font face="Courier New">CWinThread *pAnotherThread; 
</font>public:
   void SomeThreadStarterFunc();
};

<font face="Courier New">void </font><font face="Courier New">CThreadDemoDlg::</font><font face="Courier New">SomeThreadStarterFunc()
{
   pAnotherThread = AfxBeginThread(&</font><font face="Courier New">CThreadDemoDlg::MyThreadProc, this);
}

UINT __cdecl </font><font face="Courier New">CThreadDemoDlg::MyThreadProc(LPVOID pParam)
{
   </font><font face="Courier New">CThreadDemoDlg *pMyDlg = (</font><font face="Courier New">CThreadDemoDlg *)pParam</font><font face="Courier New">;

   ...</font><font face="Courier New"><font><font></font></font>
}</font>

Mark Salsbery
Microsoft MVP - Visual C++

Johpoke wrote:

So how should i go about calling the function?

UINT __cdecl CThreadDemoDlg::MyThreadProc(LPVOID pParam)<br />
{<br />
   CThreadDemoDlg *pMyDlg = (CThreadDemoDlg *)pParam;<br />
<br />
   MyFunction();<br />
<br />
   return 1;<br />
}

Johpoke wrote:

but its giving me an error message i really dont understand..

led mike wrote:

*sigh* different day same old garbage

Mark Salsbery
Microsoft MVP - Visual C++

Johpoke wrote:

My program now works perfectly

If it works, do it.

If it works, do it it works

  seems to work      probably
     ^                  ^
If it   works, do it it    works

  seems to work      probably
     ^                  ^
If it   works, do it it    works
	
(and might work again)

Cogito ergo sum

(although, admittedly, that is an assumption)

Johpoke wrote:

How does one make that dude anyway? i cant find him...

Mark Salsbery
Microsoft MVP - Visual C++

Johpoke wrote:

Maybe its like a gold-member only emotion.

Mark Salsbery
Microsoft MVP - Visual C++