Re: CDialog minimize topic

From:
=?Utf-8?B?WWFlbA==?= <Yael@discussions.microsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Mon, 21 May 2007 16:08:01 -0700
Message-ID:
<889FA9C3-5824-4365-AD6B-A304F5592D0F@microsoft.com>
I have my dialog and my goal is just minimze this into the taskbar as a
button ( like all the normal applications behaviore on minimized).

I'm calling to my dialog from CMatAgentMFCApp:
====================== code ==========================
/////////////////////////////////////////////////////////////////////////////
// The one and only CMatAgentMFCApp object

CMatAgentMFCApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CMatAgentMFCApp initialization
BOOL CMatAgentMFCApp::InitInstance()
{
    //This ensures only one Agent is running
    // The GUID is designed to be unique - if you reuse this code in another
app - use a different GUID!
    if (CSingleInstance::Create (_T("E435FC13-3340-AA85-8CD7-556FF4A4EEBA")) ==
FALSE)
        return FALSE;

CMainFrame* pMainFrame = new CMainFrame;
    if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
        return FALSE;
    m_pMainWnd = pMainFrame;

    // For debugging (or something...)
    pMainFrame->ActivateFrame();
return TRUE;
}

void CMatAgentMFCApp::OnRead( )
{
CListViewDlg dlg;
int nResponse = dlg.DoModal();
}

I have this:CListViewDlg.cpp
====================== code ==========================
#include "stdafx.h"
#include "ListViewDlg.h"
#include ".\listviewdlg.h"
#include "afxdb.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include "MatAgentMFC.h"

extern CMatAgentMFCApp theApp;
//extern HINSTANCE hInst; // current instance

/////////////////////////////////////////////////////////////////////////////
// CListViewDlg dialog

CListViewDlg::CListViewDlg(CWnd* pParent /*=NULL*/)
: CDialog(CListViewDlg::IDD, pParent)
{
    //{{AFX_DATA_INIT(CListViewDlg)
    // NOTE: the ClassWizard will add member initialization here
    //}}AFX_DATA_INIT
    matarotIcon = theApp.LoadIcon(IDI_SMALL);
}
void
CListViewDlg::DoDataExchange (CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    //{{AFX_DATA_MAP(CListViewDlg)
    // NOTE: the ClassWizard will add DDX and DDV calls here
    //}}AFX_DATA_MAP
} // DoDataExchange
BEGIN_MESSAGE_MAP(CListViewDlg, CDialog)
    //{{AFX_MSG_MAP(CListViewDlg)
    ON_WM_DESTROY()
    ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedSelectCombo)
    ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedDeleteMsg)
    ON_BN_CLICKED(IDC_BUTTON3, OnBnClickedRefresh)
    ON_BN_CLICKED(IDC_CHECK1, OnBnClickedCheckbox)
    ON_NOTIFY(TCN_SELCHANGE, IDC_TAB1, OnSelchangeListCtrlMode)
    //}}AFX_MSG_MAP
    ON_WM_CTLCOLOR()
    ON_WM_QUERYDRAGICON()
    ON_WM_PAINT()
    ON_WM_MOUSEMOVE()
    ON_WM_SIZING()
    ON_WM_SIZE()
END_MESSAGE_MAP()
BOOL
CListViewDlg::OnInitDialog()
{
    CDialog::OnInitDialog();
    // Set small icon
    this->SetIcon(matarotIcon, FALSE);
    this->SetWindowText("MATAROT - ??????????");

// Put the bitmap on the button
    CButton * pButton = (CButton*)GetDlgItem(IDC_BUTTON3);
    m_bitmap.LoadBitmap(IDB_BITMAP1);
    pButton->ModifyStyle(0,BS_BITMAP);
    pButton->SetBitmap((HBITMAP)m_bitmap);

    return TRUE;
}
HBRUSH CListViewDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{

    HBRUSH hbr = NULL;
if(pWnd->m_hWnd == this->m_hWnd )
{
    hbr = NULL;//CreateSolidBrush(RGB(255,255,255)); // White
} else
    {
        hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
    }
    return hbr;
}

HCURSOR CListViewDlg::OnQueryDragIcon()
{
    // TODO: Add your message handler code here and/or call default
    return static_cast<HCURSOR>(matarotIcon);
}

void CListViewDlg::OnPaint()
{
    if (IsIconic())
    {
        CPaintDC dc(this); // device context for painting

        SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

        // Center icon in client rectangle
        int cxIcon = GetSystemMetrics(SM_CXICON);
        int cyIcon = GetSystemMetrics(SM_CYICON);
        CRect rect;
        GetClientRect(&rect);
        int x = (rect.Width() - cxIcon + 1) / 2;
        int y = (rect.Height() - cyIcon + 1) / 2;

        // Draw the icon
        dc.DrawIcon(x, y, matarotIcon);
    }
    else
    {
        CDialog::OnPaint();
    }
}
void CListViewDlg::OnSizing(UINT fwSide, LPRECT pRect)
{
    // TODO: Add your message handler code here
    CDialog::OnSizing(fwSide, pRect);
}
void CListViewDlg::OnSize(UINT nType, int cx, int cy)
{
    CDialog::OnSize(nType, cx, cy);
    UPDATE_EASYSIZE;

    //if ( nType == SIZE_MINIMIZED )
    //WM_EX_TOOLWINDOW
}

"Joseph M. Newcomer" wrote:

Don't hide or minimize a modal dialog. What are you trying to accomplish? If we know
what the goal is, it might be possible to suggest an alternative solution.
                    joe
On Mon, 21 May 2007 06:07:02 -0700, Yael <Yael@discussions.microsoft.com> wrote:

Thank's,
So How can I fix this?

"Joseph M. Newcomer" wrote:

Minimizing a modal dialog is dangerous; hiding in the task bar more so, because if a modal
dialog is minimized, it hangs the main app with no apparent reason for the hang.

I suspect the system tray has nothing at all to do with this.
                    joe

On Mon, 21 May 2007 05:01:00 -0700, Yael <Yael@discussions.microsoft.com> wrote:

Thank you for your replay.
It's my dialog:
class CListViewDlg : public CDialog

BOOL CMyMainApp::InitInstance():
CMainFrame* pMainFrame = new CMainFrame;
    if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
        return FALSE;
    m_pMainWnd = pMainFrame;

    // For debugging (or something...)
    pMainFrame->ActivateFrame();

In CMyMainApp class I'm calling to
CListViewDlg dlg;
dlg.DoModal();

maybe is about CMainFrame using:
CSystemTray::CSystemTray()???

"Joseph M. Newcomer" wrote:

Many things wrong below...
On Mon, 21 May 2007 02:17:01 -0700, Yael <Yael@discussions.microsoft.com> wrote:

Hi,

When I'm minimizing my mfc dialog, it's going to the left down corner and
disappear.
I want to see my dialog in minimize..
(I want to make the button in the taskbar from my app disappear when the
main-window is minimized.)

================ Start Code ================

void CListViewDlg:nSize(UINT nType, int cx, int cy)
{
CDialog:nSize(nType, cx, cy);
if ( nType == SIZE_MINIMIZED )
  {
     // Show a button in the taskbar
//I see my dialog minimized, but not in the taskbar, I see it on the left
corner up.

*****
First, say something more about this dialog. Is it a modeless dialog? Is it a
dialog-based app? What is it?
*****

SetWindowLong(this->m_hWnd, GWL_STYLE, GetWindowLong(m_hWnd, GWL_STYLE) &
! WS_OVERLAPPED);

*****
! does nothing useful, because it is a logical-not operator. You meant to use ~, which is
a bitwise op

Changing the style at this point has no effect, so this line is incorrect as written and
useless when corrected.

If you don't want it in the taskbar, you must hide it. ShowWindow(SW_HIDE) would be good.
For all other OnSize operations, do ShowWindow(SW_SHOW)
******

  }
}

================ End Code ==================

Thank's,
Yael

Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm


Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm


Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm

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