| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/nativewin.cpp |
| 3 | // Purpose: wxNativeWindow implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Created: 2008-03-05 |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwindows.org> |
| 8 | // Licence: wxWindows licence |
| 9 | /////////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // ============================================================================ |
| 12 | // declarations |
| 13 | // ============================================================================ |
| 14 | |
| 15 | // ---------------------------------------------------------------------------- |
| 16 | // headers |
| 17 | // ---------------------------------------------------------------------------- |
| 18 | |
| 19 | // for compilers that support precompilation, includes "wx.h". |
| 20 | #include "wx/wxprec.h" |
| 21 | |
| 22 | #ifdef __BORLANDC__ |
| 23 | #pragma hdrstop |
| 24 | #endif |
| 25 | |
| 26 | #ifndef WX_PRECOMP |
| 27 | #endif // WX_PRECOMP |
| 28 | |
| 29 | #include "wx/nativewin.h" |
| 30 | #include "wx/msw/private.h" |
| 31 | |
| 32 | // ============================================================================ |
| 33 | // implementation |
| 34 | // ============================================================================ |
| 35 | |
| 36 | bool wxNativeContainerWindow::Create(wxNativeContainerWindowHandle hwnd) |
| 37 | { |
| 38 | if ( !::IsWindow(hwnd) ) |
| 39 | { |
| 40 | // strictly speaking, the fact that IsWindow() returns true doesn't |
| 41 | // mean that the window handle is valid -- it could be being deleted |
| 42 | // right now, for example |
| 43 | // |
| 44 | // but if it returns false, the handle is definitely invalid |
| 45 | return false; |
| 46 | } |
| 47 | |
| 48 | // make this HWND really a wxWindow |
| 49 | SubclassWin(hwnd); |
| 50 | |
| 51 | // inherit the other attributes we can from the native HWND |
| 52 | AdoptAttributesFromHWND(); |
| 53 | |
| 54 | return true; |
| 55 | } |
| 56 | |
| 57 | void wxNativeContainerWindow::OnNativeDestroyed() |
| 58 | { |
| 59 | // don't use Close() or even Destroy() here, we really don't want to keep |
| 60 | // an object using a no more existing HWND around for longer than necessary |
| 61 | delete this; |
| 62 | } |
| 63 | |
| 64 | WXLRESULT wxNativeContainerWindow::MSWWindowProc(WXUINT nMsg, |
| 65 | WXWPARAM wParam, |
| 66 | WXLPARAM lParam) |
| 67 | { |
| 68 | if ( nMsg == WM_DESTROY ) |
| 69 | { |
| 70 | OnNativeDestroyed(); |
| 71 | |
| 72 | return 0; |
| 73 | } |
| 74 | |
| 75 | return wxTopLevelWindow::MSWWindowProc(nMsg, wParam, lParam); |
| 76 | } |
| 77 | |
| 78 | wxNativeContainerWindow::~wxNativeContainerWindow() |
| 79 | { |
| 80 | // prevent the base class dtor from destroying the window, it doesn't |
| 81 | // belong to us so we should leave it alive |
| 82 | DissociateHandle(); |
| 83 | } |
| 84 | |