Click here to Skip to main content
15,884,237 members
Articles / Desktop Programming / MFC

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

Rate me:
Please Sign up or sign in to vote.
4.84/5 (23 votes)
24 May 2002CPOL3 min read 252.3K   7K   65  
How to toggle the Num Lock, Caps Lock, and Scroll Lock keys programmatically
There are two more functions that can toggle keyboard state but each of them has some specific limitations like SendInput does. In this article, you will find all possible variants with their descriptions and limitations and a simple solution for toggling these keys avoiding compatibility problems.
// Copyright(c) Armen Hakobyan 2002
// mailto:armenh@cit.am

#ifndef __STATUSBAREX_H__
#define __STATUSBAREX_H__
#pragma once

#define ID_INDICATOR_TIME	0xE707

// CStatusBarEx

class CStatusBarEx : public CStatusBar
{
	DECLARE_DYNAMIC(CStatusBarEx)

public:
	CStatusBarEx();
	virtual ~CStatusBarEx();

protected:
	DECLARE_MESSAGE_MAP()

public:
	afx_msg void OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult);	
};

#endif //__STATUSBAREX_H__

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

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


Written By
Software Developer (Senior) SafeNet Inc
United States United States
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions