Re: Cursor Control in MFC
m_ChangeCursor should be a member variable of your class (bool/BOOL). For
testing purposes, if you take that line of code out (if(m_changeCursor), you
will see that cursor is changed. Follow the insrtuction in the article about
what it needs to be and when.
--
Ajay Kalra [MVP - VC++]
ajaykalra@yahoo.com
"C Hill MBSC" <CHillMBSC@discussions.microsoft.com> wrote in message
news:5B9E6F61-7FDE-41AA-B897-0CF6CD32923B@microsoft.com...
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 )
{
::SetCursor(AfxGetApp()->LoadStandardCursor(IDC_WAIT));
return TRUE;
}
return CView::OnSetCursor(pWnd, nHitTest, message);
}
--
Engineering
"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
#endif
// CCursorControlView
IMPLEMENT_DYNCREATE(CCursorControlView, CView)
BEGIN_MESSAGE_MAP(CCursorControlView, CView)
// Standard printing commands
ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
// CCursorControlView construction/destruction
CCursorControlView::CCursorControlView()
{
// TODO: add construction code here
}
CCursorControlView::~CCursorControlView()
{
}
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();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
// 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
{
CView::AssertValid();
}
void CCursorControlView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CCursorControlDoc* CCursorControlView::GetDocument() const // non-debug
version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCursorControlDoc)));
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!
Sleep(1000);
// P.S. Why does the cursor revert to an arrow ?
CView::OnLButtonDown(nFlags, point);
}
--
Engineering