C++ GetHwndOf函数代码示例

void wxToolTip::SetWindow(wxWindow *win)
{
    Remove();

    m_window = win;

    // add the window itself
    if ( m_window )
    {
        DoAddHWND(m_window->GetHWND());
    }
#if !defined(__WXUNIVERSAL__)
    // and all of its subcontrols (e.g. radio buttons in a radiobox) as well
    wxControl *control = wxDynamicCast(m_window, wxControl);
    if ( control )
    {
        const wxArrayLong& subcontrols = control->GetSubcontrols();
        size_t count = subcontrols.GetCount();
        for ( size_t n = 0; n < count; n++ )
        {
            int id = subcontrols[n];
            HWND hwnd = GetDlgItem(GetHwndOf(m_window), id);
            if ( !hwnd )
            {
                // maybe it's a child of parent of the control, in fact?
                // (radiobuttons are subcontrols, i.e. children of the radiobox
                // for wxWidgets but are its siblings at Windows level)
                hwnd = GetDlgItem(GetHwndOf(m_window->GetParent()), id);
            }

            // must have it by now!
            wxASSERT_MSG( hwnd, wxT("no hwnd for subcontrol?") );

            AddOtherWindow((WXHWND)hwnd);
        }
    }
#endif // !defined(__WXUNIVERSAL__)
}

bool wxRadioBox::Reparent(wxWindowBase *newParent)
{
    if ( !wxStaticBox::Reparent(newParent) )
    {
        return false;
    }

    HWND hwndParent = GetHwndOf(GetParent());
    for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
    {
        ::SetParent((*m_radioButtons)[item], hwndParent);
    }
    return true;
}

void ConflictListDialog::OnMenuDiff(wxCommandEvent&)
{
   int nItems = myFiles->GetItemCount();

   for (int i = 0; i < nItems; ++i)
   {
      if (myFiles->IsSelected(i))
      {
         std::string file = ((ConflictListDialog::ItemData*) myFiles->GetItemData(i))->m_Filename;
         LaunchTortoiseAct(false, CvsDiffVerb, file, "", GetHwndOf(this)); 
         return;
      }
   }
}

// Create a drag image for the given tree control item
bool wxDragImage::Create(const wxTreeCtrl& treeCtrl, wxTreeItemId& id)
{
    if ( m_hImageList )
        ImageList_Destroy(GetHimageList());
    m_hImageList = (WXHIMAGELIST)
        TreeView_CreateDragImage(GetHwndOf(&treeCtrl), (HTREEITEM) id.m_pItem);
    if ( !m_hImageList )
    {
        // fall back on just the item text if there is no image
        return Create(treeCtrl.GetItemText(id));
    }

    return true;
}

void wxTextMeasure::EndMeasuring()
{
    if ( m_hfontOld )
    {
        ::SelectObject(m_hdc, m_hfontOld);
        m_hfontOld = NULL;
    }

    if ( m_win )
        ::ReleaseDC(GetHwndOf(m_win), m_hdc);
    //else: our HDC belongs to m_dc, don't touch it

    m_hdc = NULL;
}

void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
{
    Free();

    m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
    // the image has already been copied
    m_image = image;

    int x, y;
    int w, h;
    GetPosition(&x, &y);
    GetSize(&w, &h);

#ifdef __WIN32__
    HANDLE handle = (HANDLE)m_image->GetHandle();
    LONG style = ::GetWindowLong( (HWND)GetHWND(), GWL_STYLE ) ;
    ::SetWindowLong( (HWND)GetHWND(), GWL_STYLE, ( style & ~( SS_BITMAP|SS_ICON ) ) |
                     ( m_isIcon ? SS_ICON : SS_BITMAP ) );
    HGDIOBJ oldHandle = (HGDIOBJ)::SendMessage(GetHwnd(), STM_SETIMAGE,
                  m_isIcon ? IMAGE_ICON : IMAGE_BITMAP, (LPARAM)handle);
    // detect if this is still the handle we passed before or
    // if the static-control made a copy of the bitmap!
    if (m_currentHandle != 0 && oldHandle != (HGDIOBJ) m_currentHandle)
    {
        // the static control made a copy and we are responsible for deleting it
        DeleteObject((HGDIOBJ) oldHandle);
    }
    m_currentHandle = (WXHANDLE)handle;
#endif // Win32

    if ( ImageIsOk() )
    {
        int width = image->GetWidth(),
            height = image->GetHeight();
        if ( width && height )
        {
            w = width;
            h = height;

            ::MoveWindow(GetHwnd(), x, y, width, height, FALSE);
        }
    }

    RECT rect;
    rect.left   = x;
    rect.top    = y;
    rect.right  = x + w;
    rect.bottom = y + h;
    ::InvalidateRect(GetHwndOf(GetParent()), &rect, TRUE);
}

bool wxTextCtrl::CanPaste() const
{
    if ( !IsEditable() )
        return false;

    // Standard edit control: check for straight text on clipboard
    if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
        return false;

    bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
    ::CloseClipboard();

    return isTextAvailable;
}

int wxColourDialog::ShowModal()
{
    CHOOSECOLOR chooseColorStruct;
    COLORREF custColours[16];
    memset(&chooseColorStruct, 0, sizeof(CHOOSECOLOR));

    int i;
    for (i = 0; i < 16; i++)
    {
        if (m_colourData.m_custColours[i].Ok())
            custColours[i] = wxColourToRGB(m_colourData.m_custColours[i]);
        else
            custColours[i] = RGB(255,255,255);
    }

    chooseColorStruct.lStructSize = sizeof(CHOOSECOLOR);
    if ( m_parent )
        chooseColorStruct.hwndOwner = GetHwndOf(m_parent);
    chooseColorStruct.rgbResult = wxColourToRGB(m_colourData.m_dataColour);
    chooseColorStruct.lpCustColors = custColours;

    chooseColorStruct.Flags = CC_RGBINIT | CC_ENABLEHOOK;
    chooseColorStruct.lCustData = (LPARAM)this;
    chooseColorStruct.lpfnHook = wxColourDialogHookProc;

    if (m_colourData.GetChooseFull())
        chooseColorStruct.Flags |= CC_FULLOPEN;

    // Do the modal dialog
    bool success = ::ChooseColor(&(chooseColorStruct)) != 0;

    // Try to highlight the correct window (the parent)
    if (GetParent())
    {
      HWND hWndParent = (HWND) GetParent()->GetHWND();
      if (hWndParent)
        ::BringWindowToTop(hWndParent);
    }


    // Restore values
    for (i = 0; i < 16; i++)
    {
      wxRGBToColour(m_colourData.m_custColours[i], custColours[i]);
    }

    wxRGBToColour(m_colourData.m_dataColour, chooseColorStruct.rgbResult);

    return success ? wxID_OK : wxID_CANCEL;
}

void wxToolTip::SetTip( const wxString &tip )
{
    m_text = tip;

    if ( m_window )
    {
#if 0
    // update it immediately
    wxToolInfo ti(GetHwndOf(m_window));
    ti.lpszText = (wxChar *)m_text.c_str();

    (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, 0, &ti);
#endif
    }
}

bool wxChoice::MSWShouldPreProcessMessage(WXMSG *pMsg)
{
    MSG *msg = (MSG *) pMsg;

    // if the dropdown list is visible, don't preprocess certain keys
    if ( msg->message == WM_KEYDOWN
        && (msg->wParam == VK_ESCAPE || msg->wParam == VK_RETURN) )
    {
        if (::SendMessage(GetHwndOf(this), CB_GETDROPPEDSTATE, 0, 0))
        {
            return false;
        }
    }

    return wxControl::MSWShouldPreProcessMessage(pMsg);
}

bool wxTaskBarIcon::RemoveIcon()
{
    if (!m_iconAdded)
        return false;

    m_iconAdded = false;

    NotifyIconData notifyData(GetHwndOf(m_win));

    bool ok = Shell_NotifyIcon(NIM_DELETE, &notifyData) != 0;
    if ( !ok )
    {
        wxLogLastError(wxT("Shell_NotifyIcon(NIM_DELETE)"));
    }

    return ok;
}

WXLRESULT
wxStatusBar95::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
#ifndef __WXWINCE__
    if ( nMsg == WM_WINDOWPOSCHANGING )
    {
        WINDOWPOS *lpPos = (WINDOWPOS *)lParam;
        int x, y, w, h;
        GetPosition(&x, &y);
        GetSize(&w, &h);

        // we need real window coords and not wx client coords
        AdjustForParentClientOrigin(x, y);

        lpPos->x  = x;
        lpPos->y  = y;
        lpPos->cx = w;
        lpPos->cy = h;

        return 0;
    }

    if ( nMsg == WM_NCLBUTTONDOWN )
    {
        // if hit-test is on gripper then send message to TLW to begin
        // resizing. It is possible to send this message to any window.
        if ( wParam == HTBOTTOMRIGHT )
        {
            wxWindow *win;

            for ( win = GetParent(); win; win = win->GetParent() )
            {
                if ( win->IsTopLevel() )
                {
                    SendMessage(GetHwndOf(win), WM_NCLBUTTONDOWN,
                                wParam, lParam);

                    return 0;
                }
            }
        }
    }
#endif

    return wxStatusBarBase::MSWWindowProc(nMsg, wParam, lParam);
}

int CocoaDialogApp::OnExit() {
#ifdef __WXMSW__
	if (m_parentWnd) {
		// Activate the parent frame
		HWND hwnd = GetHwndOf(m_parentWnd);
		::SetForegroundWindow(hwnd);
		::SetFocus(hwnd);

		m_parentWnd->DissociateHandle();
		delete m_parentWnd;
	}
#endif //__WXMSW__

	wxLogDebug(wxT("wxCD exit done"));

	return wxApp::OnExit();
}

bool wxSpinCtrl::Reparent(wxWindowBase *newParent)
{
    // Reparenting both the updown control and its buddy does not seem to work:
    // they continue to be connected somehow, but visually there is no feedback
    // on the buddy edit control. To avoid this problem, we reparent the buddy
    // window normally, but we recreate the updown control and reassign its
    // buddy.

    // Get the position before changing the parent as it would be offset after
    // changing it.
    const wxRect rect = GetRect();

    if ( !wxWindowBase::Reparent(newParent) )
        return false;

    newParent->GetChildren().DeleteObject(this);

    // destroy the old spin button after detaching it from this wxWindow object
    // (notice that m_hWnd will be reset by UnsubclassWin() so save it first)
    const HWND hwndOld = GetHwnd();
    UnsubclassWin();
    if ( !::DestroyWindow(hwndOld) )
    {
        wxLogLastError(wxT("DestroyWindow"));
    }

    // create and initialize the new one
    if ( !wxSpinButton::Create(GetParent(), GetId(),
                               rect.GetPosition(), rect.GetSize(),
                               GetWindowStyle(), GetName()) )
        return false;

    // reapply our values to wxSpinButton
    wxSpinButton::SetValue(GetValue());
    SetRange(m_min, m_max);

    // also set the size again with wxSIZE_ALLOW_MINUS_ONE flag: this is
    // necessary if our original position used -1 for either x or y
    SetSize(rect, wxSIZE_ALLOW_MINUS_ONE);

    // associate it with the buddy control again
    ::SetParent(GetBuddyHwnd(), GetHwndOf(GetParent()));
    (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)GetBuddyHwnd(), 0);

    return true;
}

bool
wxTaskBarIcon::ShowBalloon(const wxString& title,
                           const wxString& text,
                           unsigned msec,
                           int flags)
{
    wxCHECK_MSG( m_iconAdded, false,
                    wxT("can't be used before the icon is created") );

    const HWND hwnd = GetHwndOf(m_win);

    // we need to enable version 5.0 behaviour to receive notifications about
    // the balloon disappearance
    NotifyIconData notifyData(hwnd);
    notifyData.uFlags = 0;
    notifyData.uVersion = 3 /* NOTIFYICON_VERSION for Windows 2000/XP */;

    if ( !Shell_NotifyIcon(NIM_SETVERSION, &notifyData) )
    {
        wxLogLastError(wxT("Shell_NotifyIcon(NIM_SETVERSION)"));
    }

    // do show the balloon now
    notifyData = NotifyIconData(hwnd);
    notifyData.uFlags |= NIF_INFO;
    notifyData.uTimeout = msec;
    wxStrlcpy(notifyData.szInfo, text.t_str(), WXSIZEOF(notifyData.szInfo));
    wxStrlcpy(notifyData.szInfoTitle, title.t_str(),
                WXSIZEOF(notifyData.szInfoTitle));

    if ( flags & wxICON_INFORMATION )
        notifyData.dwInfoFlags |= NIIF_INFO;
    else if ( flags & wxICON_WARNING )
        notifyData.dwInfoFlags |= NIIF_WARNING;
    else if ( flags & wxICON_ERROR )
        notifyData.dwInfoFlags |= NIIF_ERROR;

    bool ok = Shell_NotifyIcon(NIM_MODIFY, &notifyData) != 0;
    if ( !ok )
    {
        wxLogLastError(wxT("Shell_NotifyIcon(NIM_MODIFY)"));
    }

    return ok;
}