C / C++ / MFC

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

HWND hWndControl = GetDlgItem(this->m_hWnd, IDC_CHECK);<br />
SendMessage(hWndControl, IDC_CHECK, BM_SETCHECK, wParam, BST_CHECKED, 0);

HWND hWndControl = ::GetDlgItem(this->m_hWnd, IDC_CHECK1);<br />
::SendMessage(hWndControl, IDC_CHECK1, BM_SETCHECK, BST_CHECKED, 0);

THREADINFO* ptp = new THREADINFO;<br />
ptp->hWnd = m_hWnd;<br />
g_pThread = AfxBeginThread(ThreadPanelRead, ptp, THREAD_PRIORITY_NORMAL, 0, CREATE_SUSPENDED);

m_myCheckBox.SetCheck (BST_CHECKED);  // recommended
CheckDlgButton (IDC_MY_CHECKBOX, BST_CHECKED);  // not recommended

1. The first way is to use the GetDlgItem(control's ID)
   cast it to a pointer to a type CButton as viz:
   

   <br />
   	// TODO: Add extra initialization here<br />
   	CButton *pCheck = reinterpret_cast<CButton *>(GetDlgItem(IDC_CHECK1));<br />
   	pCheck->SetCheck(TRUE);<br />

   
   
of:

2. Using Class Wizard (or maunally), map the check box to a "Control" category variable of type CButton (default)
   bot in your dialog's header file
   

   <br />
   // Dialog Data<br />
   	//{{AFX_DATA(CCheckDlg)<br />
   	enum { IDD = IDD_CHECK_DIALOG };<br />
   	CButton	m_check;<br />
   	//}}AFX_DATA<br />

   
   and in the DoDataExchange method
   

   <br />
   <br />
   void CCheckDlg::DoDataExchange(CDataExchange* pDX)<br />
   {<br />
   	CDialog::DoDataExchange(pDX);<br />
   	//{{AFX_DATA_MAP(CCheckDlg)<br />
   	DDX_Control(pDX, IDC_CHECK1, m_check);<br />
   	//}}AFX_DATA_MAP<br />
   }<br />

   
   have been added (or you have to insert DDX_Control(pDX, IDC_CHECK1, m_check); if done manuallY)
   the code in OnInitDialog is such:
   

   <br />
   	// TODO: Add extra initialization here<br />
   	m_check.SetCheck(TRUE);<br />

   
   

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

<br />
// reading binary file<br />
#include <iostream><br />
#include <fstream><br />
#include <stdlib.h><br />
#include <windows.h><br />
using namespace std;<br />
<br />
const char * filename = "J:\\MyJukeBox\\PLAYLIST\\MyFavorite.plp";<br />
<br />
int main () {<br />
  wchar_t * buffer;<br />
  long size;<br />
  wfstream file (filename, ios::in|ios::ate);<br />
  size = file.tellg();<br />
  file.seekg (0, ios::beg);<br />
  buffer = new wchar_t [size];<br />
  file.read (buffer, size);<br />
  file.close();<br />
<br />
  cout << "the complete file is in a buffer. Size:" << size;<br />
  MessageBox(0,buffer,NULL,0);<br />
<br />
  delete[] buffer;<br />
<br />
  return 0;<br />
}<br />

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow