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Toggling the Num Lock, Caps Lock, and Scroll Lock keys

, 24 May 2002
How to toggle the Num Lock, Caps Lock, and Scroll Lock keys programmatically.
togglekeys_demo.zip
ToggleKeys.aps
res
ToggleKeysDoc.ico
ToggleKeys.ico
Toolbar.bmp
ToggleKeys.dep
ToggleKeys.dsw
ToggleKeys.ncb
ToggleKeys.dsp
ToggleKeys.mak
ToggleKeys.plg
togglekeys_exe.zip
ToggleKeys.exe
togglekeys_src.zip
// ToggleKeysView.cpp : implementation of the CToggleKeysView class
//

#include "stdafx.h"
#include "ToggleKeys.h"

#include "ToggleKeysDoc.h"
#include "ToggleKeysView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView

IMPLEMENT_DYNCREATE(CToggleKeysView, CEditView)

BEGIN_MESSAGE_MAP(CToggleKeysView, CEditView)
	//{{AFX_MSG_MAP(CToggleKeysView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CEditView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView construction/destruction

CToggleKeysView::CToggleKeysView()
{
	// TODO: add construction code here

}

CToggleKeysView::~CToggleKeysView()
{
}

BOOL CToggleKeysView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	BOOL bPreCreated = CEditView::PreCreateWindow(cs);
	cs.style &= ~(ES_AUTOHSCROLL|WS_HSCROLL);	// Enable word-wrapping

	return bPreCreated;
}

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView drawing

void CToggleKeysView::OnDraw(CDC* pDC)
{
	CToggleKeysDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView printing

BOOL CToggleKeysView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default CEditView preparation
	return CEditView::OnPreparePrinting(pInfo);
}

void CToggleKeysView::OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView begin printing.
	CEditView::OnBeginPrinting(pDC, pInfo);
}

void CToggleKeysView::OnEndPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView end printing
	CEditView::OnEndPrinting(pDC, pInfo);
}

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView diagnostics

#ifdef _DEBUG
void CToggleKeysView::AssertValid() const
{
	CEditView::AssertValid();
}

void CToggleKeysView::Dump(CDumpContext& dc) const
{
	CEditView::Dump(dc);
}

CToggleKeysDoc* CToggleKeysView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CToggleKeysDoc)));
	return (CToggleKeysDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CToggleKeysView message handlers

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Armen Hakobyan
Software Developer (Senior) SafeNet Inc
United States United States
No Biography provided

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