like duh!!!!!:laugh:...... ahem...sorry mr toxxxxxxxxcit, i am not off thiz topic;) ,coz my bachelors happen to be in electronics &communication...... well i was wondering if microsec precision is possible with the QueryPerformance function taking into account that the windows aint an rtos system......my question seem to have just popped up when thiz question abt millisecond was put into,.....itz not the issue or misunderstanding of millisec,or pico sec,or nano sec or whatever!!!!!;) cheerz.....:-D "faith, hope, love remain, these three.....; but the greatest of these is love" -1 Corinthians 13:13

Hmm.., ((ProgressDialog *)lparam)->PostMessage(WM_COMMAND,IDOK) fixes the problem, but what was wrong with EndDialog?! Stack trace: USER32! 77d562cf() CDialog::EndDialog(int) ReadDeviceThread(void *) _threadstart(void *) KERNEL32!7c80b50b() ---------------------------- ProgressDialog.cpp ---------------------------- // ProgressDialog.cpp : implementation file // #include "stdafx.h" #include "monitor.h" #include "ProgressDialog.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // ProgressDialog dialog ProgressDialog::ProgressDialog(CWnd* pParent /*=NULL*/) : CDialog(ProgressDialog::IDD, pParent) { //{{AFX_DATA_INIT(ProgressDialog) m_text = _T(""); //}}AFX_DATA_INIT } void ProgressDialog::OnFinalRelease() { // When the last reference for an automation object is released // OnFinalRelease is called. The base class will automatically // deletes the object. Add additional cleanup required for your // object before calling the base class. CDialog::OnFinalRelease(); } void ProgressDialog::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(ProgressDialog) DDX_Control(pDX, IDC_MPROGRESS, m_bar); DDX_Text(pDX, IDC_MPROGTEXT, m_text); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(ProgressDialog, CDialog) //{{AFX_MSG_MAP(ProgressDialog) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // ProgressDialog message handlers int ProgressDialog::DoModal(char *txt) { m_text = txt; //m_bar.SetRange(0,100); //m_bar.SetPos(0); return CDialog::DoModal(); } void ProgressDialog::SetText(char *txt) { m_text = txt; UpdateData(FALSE); } void ProgressDialog::SetPos(int pos) { m_bar.SetPos(pos); } void ProgressDialog::OnCancel() { // TODO: Add extra cleanup here StopAcc = 0; CancelProgressModal = 1; Sleep(4); // a little delay to stop a collision CDialog::OnCancel(); } void ProgressDialog::SetRange(int min, int max) { m_bar.SetRange(min, max); } ---------------------------- ProgressDialog.h ---------------------------- #if !defined(AFX_PROGRESSDIALOG_H__13AB40A1_4F1A_11D2_932F_F4950FC10000__INCLUDED_) #define AFX_PROGRESSDIALOG_H__13AB40A1_4F1A_11D2_932F_F4950FC10000__INCLUDED_ #include "stdafx.h" #include "resource.h" #if _MSC_VER >= 1000 #pragma once #endi