An example of user interface thread implementation

CFindStatusDlgThread.cpp

#include "pch.h"
#include "ShowOfflineFiles.h"
#include "ShowOfflineFilesDoc.h"
#include "CFindStatusDlg.h"
#include "CFindStatusDlgThread.h"


// CFindStatusDlgThread

IMPLEMENT_DYNCREATE(CFindStatusDlgThread, CWinThread)

CFindStatusDlgThread::CFindStatusDlgThread():
	m_pDoc(NULL), m_hParent(NULL)
{
}

CFindStatusDlgThread::~CFindStatusDlgThread()
{
}

BOOL CFindStatusDlgThread::InitInstance()
{
	ASSERT(m_pDoc != NULL);
	CFindStatusDlg* &pDlg = m_pDoc->m_pFindStatusDlg;
	pDlg->m_hParent = m_hParent;
	m_pMainWnd = pDlg;
	pDlg->DoModal();

	return TRUE;
}

int CFindStatusDlgThread::ExitInstance()
{
	return CWinThread::ExitInstance();
}

BEGIN_MESSAGE_MAP(CFindStatusDlgThread, CWinThread)
END_MESSAGE_MAP()

CShowOfflineFilesDoc.cpp

void CShowOfflineFilesDoc::OnFind()
{
  /* Snip */
	CFindStatusDlgThread* pThread = DYNAMIC_DOWNCAST(CFindStatusDlgThread, AfxBeginThread(RUNTIME_CLASS(CFindStatusDlgThread), 0, 0, CREATE_SUSPENDED));
	ASSERT(pThread);
	pThread->m_pDoc = this;
	pThread->m_hParent = AfxGetMainWnd()->m_hWnd;
	pThread->ResumeThread();
}