RE: Cursor Control in MFC

=?Utf-8?B?QyBIaWxsIE1CU0M=?= <>
Fri, 16 Mar 2007 05:44:33 -0700
Thank you for your response.

I have overridden OnSetCursor() and have inserted the following code, but
unfortunately m_ChangeCursor is undeclared, do you know where, or what it is,
because I can not find it in help, but getting there!

The Output Window:

c:\Data\Visual\CursorControl\CursorControlView.cpp(127): error C2065:
'm_ChangeCursor' : undeclared identifier

// Message WM_SET_CURSOR

BOOL CCursorControlView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
    // TODO: Add your message handler code here and/or call default
    if ( m_ChangeCursor )
        return TRUE;

    return CView::OnSetCursor(pWnd, nHitTest, message);


"C Hill MBSC" wrote:

In 1994 I used the code from Kruglinski to change the cursor to an hour
glass (see below). This does not seem to work in Visual C++ 2003.NET using
MFC. The cursor changes back to what it was, immediately, unless you put a
delay in it! Not very good! Any suggestions from the Visual C++ Team?

// CursorControlView.cpp : implementation of the CCursorControlView class

#include "stdafx.h"
#include "CursorControl.h"

#include "CursorControlDoc.h"
#include "CursorControlView.h"
#include ".\cursorcontrolview.h"

#ifdef _DEBUG
#define new DEBUG_NEW

// CCursorControlView


BEGIN_MESSAGE_MAP(CCursorControlView, CView)
    // Standard printing commands

// CCursorControlView construction/destruction

    // TODO: add construction code here



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

    return CView::PreCreateWindow(cs);

// CCursorControlView drawing

void CCursorControlView::OnDraw(CDC* /*pDC*/)
    CCursorControlDoc* pDoc = GetDocument();
    if (!pDoc)

    // TODO: add draw code for native data here

// CCursorControlView printing

BOOL CCursorControlView::OnPreparePrinting(CPrintInfo* pInfo)
    // default preparation
    return DoPreparePrinting(pInfo);

void CCursorControlView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
    // TODO: add extra initialization before printing

void CCursorControlView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
    // TODO: add cleanup after printing

// CCursorControlView diagnostics

#ifdef _DEBUG
void CCursorControlView::AssertValid() const

void CCursorControlView::Dump(CDumpContext& dc) const

CCursorControlDoc* CCursorControlView::GetDocument() const // non-debug
version is inline
    return (CCursorControlDoc*)m_pDocument;
#endif //_DEBUG

// CCursorControlView message handlers

void CCursorControlView::OnLButtonDown(UINT nFlags, CPoint point)
    // TODO: Add your message handler code here and/or call default

    // The next line is code taken from Inside Visual C++ (Kruglinski)
    ::SetCursor(::LoadCursor(NULL, IDC_WAIT));

    // This stop the cursor going back to what it was!

    // P.S. Why does the cursor revert to an arrow ?

    CView::OnLButtonDown(nFlags, point);


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