Radio Power

// MainDlg.cpp : implementation of the CMainDlg class
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "resource.h"

#include "MainDlg.h"

#include <boost/bind.hpp>

LRESULT CMainDlg::OnInitDialog( UINT /*uMsg*/, 
                                WPARAM /*wParam*/, 
                                LPARAM /*lParam*/, 
                                BOOL& /*bHandled*/ )
{
    // center the dialog on the screen
    CenterWindow();

    DoDataExchange();

    // set icons
    HICON hIcon = ( HICON )::LoadImage( _Module.GetResourceInstance(), 
                                        MAKEINTRESOURCE( IDR_MAINFRAME ), 
                                        IMAGE_ICON, 
                                        ::GetSystemMetrics( SM_CXICON ), 
                                        ::GetSystemMetrics( SM_CYICON ), 
                                        LR_DEFAULTCOLOR );
    SetIcon( hIcon, TRUE );

    HICON hIconSmall = ( HICON )::LoadImage( _Module.GetResourceInstance(), 
                                             MAKEINTRESOURCE( IDR_MAINFRAME ), 
                                             IMAGE_ICON, 
                                             ::GetSystemMetrics( SM_CXSMICON ), 
                                             ::GetSystemMetrics( SM_CYSMICON ), 
                                             LR_DEFAULTCOLOR );
    SetIcon( hIconSmall, FALSE );

    // update the dialog controls to reflect the current state of the WiFi radio
    UpdateControlState( ndis_power_.IsRadioEnabled() );

    // start listening for changes in the WiFi radio state
    ndis_monitor_.Start( boost::bind( &CMainDlg::OnRadioStateChanged, this, _1 ) );

    return TRUE;
}

LRESULT CMainDlg::OnEnable( WORD /*wNotifyCode*/, 
                            WORD /*wID*/, 
                            HWND /*hWndCtl*/, 
                            BOOL& /*bHandled*/ )
{
    if( ndis_power_.IsRadioEnabled() )
        ndis_power_.Disable();
    else
        ndis_power_.Enable();
    return 0;
}

LRESULT CMainDlg::OnCancel( WORD /*wNotifyCode*/, 
                            WORD wID, 
                            HWND /*hWndCtl*/, 
                            BOOL& /*bHandled*/ )
{
    EndDialog( wID );
    return 0;
}

LRESULT CMainDlg::OnDestroy( UINT /*uMsg*/, 
                             WPARAM /*wParam*/, 
                             LPARAM /*lParam*/, 
                             BOOL& /*bHandled*/ )
{
    ndis_monitor_.Stop();
    return 0;
}

LRESULT CMainDlg::OnRadioStateChanged( UINT /*uMsg*/, 
                                       WPARAM wParam, 
                                       LPARAM /*lParam*/, 
                                       BOOL& /*bHandled*/ )
{
    bool enabled = static_cast< bool >( wParam );
    UpdateControlState( enabled );
    return 0;
}

void CMainDlg::OnRadioStateChanged( bool enabled )
{
    /// we must return to the UI thread to change the state of the UI.
    PostMessage( UWM_RADIO_STATE_CHANGED, enabled );
}

void CMainDlg::UpdateControlState( bool enabled )
{
    status_.SetWindowText( enabled ? L"WiFi is enabled." : L"WiFi is disabled." );
    enable_.SetWindowText( enabled ? L"Disable" : L"Enable" );
}