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How to drag a dialog box derived from DHtmlDialog ?

Hi

I have created a dialogbox which is derived from CDHtmlDialog. My dialogbox don't have titlebar.

Because it is a DHtmlDialog box it contains a web page. Web page hase an Image looks like titlebar (Which is not a titlebar).

Now what I want is I want to drag my dialog by pressing this image (titlebar).

I tried to Override OnLButtonDown but control not going there. Why I don't know?

Aftre tring this I am able to drag my dialog by pressing on border only. Which is not my requirement.

UINT CDhtmldemoDlg::OnNcHitTest(CPoint point)
{
return HTCAPTION ;
}

Any suggestion ????

Thanks

Raj_Kau

take a flage and make true when you press left button and again make false on lbutton up
also get the x y position of mouse and Set the window position by using "SetWindowPos" API

Raj

davinder101

ASKER

Hi Raj,

Control is not going OnLButtonDown handler. Then how I'll set flag value?

Raj_Kau

can you post some code

Raj

davinder101

ASKER

.CPP file my dialogbox is follows....

// DhtmldemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include ".\dhtmldemodlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

// CAboutDlg dialog used for App About
// CDhtmldemoDlg dialog

BEGIN_DHTML_EVENT_MAP(CDhtmldemoDlg)

END_DHTML_EVENT_MAP()

CDhtmldemoDlg::CDhtmldemoDlg(CWnd* pParent /*=NULL*/)
      : CDHtmlDialog(CDhtmldemoDlg::IDD, CDhtmldemoDlg::IDH, pParent)
{
      EnableModeless(true);
      m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDhtmldemoDlg::DoDataExchange(CDataExchange* pDX)
{
      CDHtmlDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CDhtmldemoDlg, CDHtmlDialog)
      ON_WM_SYSCOMMAND()
      //}}AFX_MSG_MAP
      ON_WM_CREATE()
      ON_WM_LBUTTONDOWN()
      ON_WM_NCHITTEST()
END_MESSAGE_MAP()

// CDhtmldemoDlg message handlers

int CDhtmldemoDlg::Create()
{
      return CDHtmlDialog::Create(CDhtmldemoDlg::IDD) ;
}

BOOL CDhtmldemoDlg::OnInitDialog()
{
      CDHtmlDialog::OnInitDialog();

      // Set the icon for this dialog. The framework does this automatically
      // when the application's main window is not a dialog
      SetIcon(m_hIcon, TRUE);                  // Set big icon
      SetIcon(m_hIcon, FALSE);            // Set small icon

      m_pBrowserApp->put_RegisterAsDropTarget(VARIANT_FALSE);
      return true;
}

void CDhtmldemoDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
      CRect rect;
      GetClientRect(&rect);
      PostMessage( WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM( point.x, point.y));
}

UINT CDhtmldemoDlg::OnNcHitTest(CPoint point)
{
      return HTCAPTION ;

      //UINT uCode = CDialog::OnNcHitTest(point);
      //return uCode == HTCLIENT ? HTCAPTION : uCode;
}

davinder101

ASKER

Hi,

I got solution.

BEGIN_DHTML_EVENT_MAP(CDhtmldemoDlg)
// handle Button click event
DHTML_EVENT_TAG_ALL(DISPID_HTMLELEMENTEVENTS_ONMOUSEDOWN, OnPageMouseDown )
END_DHTML_EVENT_MAP()

ASKER CERTIFIED SOLUTION

GranMod

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