editctrlbase.cpp

BCAM 1394 Driver

//-----------------------------------------------------------------------------
//  (c) 2002 by Basler Vision Technologies
//  Section:  Vision Components
//  Project:  BCAM
//  $Header: EditCtrlBase.cpp, 2, 02.10.2002 14:31:26, Nebelung, H.$
//-----------------------------------------------------------------------------
/**
\file     EditCtrlBase.cpp
\brief    implementation of the CEditCtrlBase class.
*/
//////////////////////////////////////////////////////////////////////

#include <atlbase.h>
#include <atlapp.h>
extern  CAppModule _Module;
#include <atlwin.h>

#include "math.h"
#include "stdio.h"
#include "limits.h"

#include "EditCtrlBase.h"

//////////////////////////////////////////////////////////////////////
// 

CEditCtrlBase::CEditCtrlBase()
{
  m_bWantReturn   = false;
  m_bEscUndos   = false;
  m_bKillFocus  = true;
  
  m_nEditCtrlID   = 0;
  m_hEditCtrl             = NULL;
}

//////////////////////////////////////////////////////////////////////
// 

BOOL CEditCtrlBase::SetWindowText( LPCTSTR lpszString )
{
  strncpy(m_szWndTxt, lpszString, sizeof(m_szWndTxt)-1);
  return CEdit::SetWindowText(lpszString);
}

/**********
* OnGetDlgCode - handler of WM_GETDLGCODE
*
*                                                              this handler catches WM_KEYDOWN messages and decides
*                                                              if they should be handled by the default implementation
*                                                              or by our own WM_KEYDOWN handler
* 
* \param       uMsg
* \param       wParam
* \param       lParam
* \param       bHandled
*/
LRESULT CEditCtrlBase::OnGetDlgCode(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  LRESULT lRes;                                                   // important: call controls default impl of OnGetDlgCode !!!
  lRes = CallWindowProc(CEditCtrlBase::m_pfnSuperWindowProc, CEditCtrlBase::m_hWnd, uMsg, wParam, lParam);
  
  // take care: not all calls of 'OnGetDlgCode' will be made with a MSG-Pointer
  MSG     *pMsg = (MSG *) lParam;
  if ( pMsg != NULL )
  {
    // change the behavior of the control as needed
    if ( WM_KEYDOWN == pMsg->message )
    {
      switch ( LOWORD(pMsg->wParam) )
      {
      case VK_RETURN: // make sure VK_RETURN isn't handled by the default handler -> my OnKeyDown
        if ( m_bWantReturn )
        {
          //                                                                                              ATLTRACE("CEditCtrlBase::GetDlgCode VK_RETURN\n");
          lRes |= DLGC_WANTALLKEYS;
        }
        break;
      case VK_ESCAPE: //
        if ( m_bWantReturn && m_bEscUndos )
        {
          //                                                                                              ATLTRACE("CEditCtrlBase::GetDlgCode VK_ESCAPE\n");
          lRes |= DLGC_WANTALLKEYS;
        }
        break;
      } /// switch ( LOWORD(pMsg->wParam) )
    } /// if ( WM_KEYDOWN == pMsg->message )
  }
  
  //      ATLTRACE("CEditCtrlBase::GetDlgCode == %4lx\n", lRes);
  return lRes;
}