// Created: 24.09.01
// RCS-ID: $Id$
// Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
-// License: wxWindows license
+// License: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "toplevel.h"
#endif
#include "wx/log.h"
#include "wx/intl.h"
#include "wx/frame.h"
+ #include "wx/containr.h" // wxSetFocusToChild()
#endif //WX_PRECOMP
+#include "wx/module.h"
+
#include "wx/msw/private.h"
+#if defined(__WXWINCE__)
+ #include <ole2.h>
+ #include <shellapi.h>
+ #if _WIN32_WCE < 400
+ #include <aygshell.h>
+ #endif
+#include "wx/msw/wince/missing.h"
+#endif
+
+#include "wx/msw/missing.h"
+#include "wx/msw/winundef.h"
+
+#include "wx/display.h"
#ifndef ICON_BIG
#define ICON_BIG 1
#endif // __WXMICROWIN__
+// NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
+// is not included by wxUniv build which does need wxDlgProc
+LONG APIENTRY _EXPORT
+wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
+
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
// the name of the default wxWindows class
extern const wxChar *wxCanvasClassName;
+// ----------------------------------------------------------------------------
+// wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
+// module to ensure that the window is always deleted)
+// ----------------------------------------------------------------------------
+
+class wxTLWHiddenParentModule : public wxModule
+{
+public:
+ // module init/finalize
+ virtual bool OnInit();
+ virtual void OnExit();
+
+ // get the hidden window (creates on demand)
+ static HWND GetHWND();
+
+private:
+ // the HWND of the hidden parent
+ static HWND ms_hwnd;
+
+ // the class used to create it
+ static const wxChar *ms_className;
+
+ DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
+
// ============================================================================
// wxTopLevelWindowMSW implementation
// ============================================================================
-// Dialog window proc
-LONG APIENTRY _EXPORT
-wxDlgProc(HWND WXUNUSED(hWnd), UINT message, WPARAM WXUNUSED(wParam), LPARAM WXUNUSED(lParam))
-{
- if ( message == WM_INITDIALOG )
- {
- // for this message, returning TRUE tells system to set focus to the
- // first control in the dialog box
- return TRUE;
- }
- else
- {
- // for all the other ones, FALSE means that we didn't process the
- // message
- return FALSE;
- }
-}
+BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
+ EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
+END_EVENT_TABLE()
// ----------------------------------------------------------------------------
// wxTopLevelWindowMSW creation
m_iconized =
m_maximizeOnShow = FALSE;
- // unlike (almost?) all other windows, frames are created hidden
- m_isShown = FALSE;
-
// Data to save/restore when calling ShowFullScreen
m_fsStyle = 0;
m_fsOldWindowStyle = 0;
m_fsIsMaximized = FALSE;
m_fsIsShowing = FALSE;
+
+ m_winLastFocused = (wxWindow *)NULL;
}
WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
WXDWORD msflags = wxWindow::MSWGetStyle
(
(style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
- ) & ~WS_CHILD;
+ ) & ~WS_CHILD & ~WS_VISIBLE;
// first select the kind of window being created
//
if ( style & wxFRAME_TOOL_WINDOW )
msflags |= WS_POPUP;
else
- msflags |= WS_OVERLAPPED;
+ {
+ if (msflags & WS_BORDER)
+ msflags |= WS_OVERLAPPED;
+ }
// border and caption styles
if ( style & wxRESIZE_BORDER )
msflags |= WS_THICKFRAME;
+ else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
+ *exflags |= WS_EX_DLGMODALFRAME;
else if ( !(style & wxBORDER_NONE) )
msflags |= WS_BORDER;
else
msflags |= WS_MAXIMIZEBOX;
if ( style & wxSYSTEM_MENU )
msflags |= WS_SYSMENU;
+
+ // under CE these 2 styles are not defined currently
+#ifdef WS_MINIMIZE
if ( style & wxMINIMIZE )
msflags |= WS_MINIMIZE;
+#endif // WS_MINIMIZE
+#ifdef WS_MAXIMIZE
if ( style & wxMAXIMIZE )
msflags |= WS_MAXIMIZE;
+#endif // WS_MAXIMIZE
// Keep this here because it saves recoding this function in wxTinyFrame
-#if wxUSE_ITSY_BITSY && !defined(__WIN32__)
- if ( style & wxTINY_CAPTION_VERT )
- msflags |= IBS_VERTCAPTION;
- if ( style & wxTINY_CAPTION_HORIZ )
- msflags |= IBS_HORZCAPTION;
-#else
if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
msflags |= WS_CAPTION;
-#endif
if ( exflags )
{
-#if !defined(__WIN16__) && !defined(__SC__)
if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
{
- // make all frames appear in the win9x shell taskbar unless
- // wxFRAME_TOOL_WINDOW or wxFRAME_NO_TASKBAR is given - without
- // giving them WS_EX_APPWINDOW style, the child (i.e. owned) frames
- // wouldn't appear in it
- if ( (style & wxFRAME_TOOL_WINDOW) || (style & wxFRAME_NO_TASKBAR) )
+ if ( style & wxFRAME_TOOL_WINDOW )
+ {
+ // create the palette-like window
*exflags |= WS_EX_TOOLWINDOW;
- else if ( !(style & wxFRAME_NO_TASKBAR) )
+
+ // tool windows shouldn't appear on the taskbar (as documented)
+ style |= wxFRAME_NO_TASKBAR;
+ }
+
+ // again, support for this is missing under CE
+#ifdef WS_EX_APPWINDOW
+ // We have to solve 2 different problems here:
+ //
+ // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
+ // taskbar even if they don't have a parent
+ //
+ // 2. frames without this style should appear in the taskbar even
+ // if they're owned (Windows only puts non owned windows into
+ // the taskbar normally)
+ //
+ // The second one is solved here by using WS_EX_APPWINDOW flag, the
+ // first one is dealt with in our MSWGetParent() method
+ // implementation
+ if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
+ {
+ // need to force the frame to appear in the taskbar
*exflags |= WS_EX_APPWINDOW;
+ }
+ //else: nothing to do [here]
+#endif // WS_EX_APPWINDOW
}
-#endif // !Win16
if ( style & wxSTAY_ON_TOP )
*exflags |= WS_EX_TOPMOST;
-#ifdef __WIN32__
if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
*exflags |= WS_EX_CONTEXTHELP;
-#endif // __WIN32__
}
return msflags;
}
+WXHWND wxTopLevelWindowMSW::MSWGetParent() const
+{
+ // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
+ // parent HWND or it would be always on top of its parent which is not what
+ // we usually want (in fact, we only want it for frames with the
+ // wxFRAME_FLOAT_ON_PARENT flag)
+ HWND hwndParent = NULL;
+ if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
+ {
+ const wxWindow *parent = GetParent();
+
+ if ( !parent )
+ {
+ // this flag doesn't make sense then and will be ignored
+ wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
+ }
+ else
+ {
+ hwndParent = GetHwndOf(parent);
+ }
+ }
+ //else: don't float on parent, must not be owned
+
+ // now deal with the 2nd taskbar-related problem (see comments above in
+ // MSWGetStyle())
+ if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
+ {
+ // use hidden parent
+ hwndParent = wxTLWHiddenParentModule::GetHWND();
+ }
+
+ return (WXHWND)hwndParent;
+}
+
bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
const wxString& title,
const wxPoint& pos,
if ( !m_hWnd )
{
- wxFAIL_MSG(_("Failed to create dialog. Incorrect DLGTEMPLATE?"));
+ wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
- wxLogSysError(_("Can't create dialog using memory template"));
+ wxLogSysError(wxT("Can't create dialog using memory template"));
return FALSE;
}
if ( exflags )
{
::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
- ::SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
+ ::SetWindowPos(GetHwnd(),
+ exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
+ 0, 0, 0, 0,
SWP_NOSIZE |
SWP_NOMOVE |
- SWP_NOZORDER |
+ (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
SWP_NOACTIVATE);
}
// move the dialog to its initial position without forcing repainting
int x, y, w, h;
- if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
- {
- x =
- w = (int)CW_USEDEFAULT;
- }
-
- // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
- // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
- // window to (0, 0) size which breaks quite a lot of things, e.g. the
- // sizer calculation in wxSizer::Fit()
- if ( w == (int)CW_USEDEFAULT )
- {
- // the exact number doesn't matter, the dialog will be resized
- // again soon anyhow but it should be big enough to allow
- // calculation relying on "totalSize - clientSize > 0" work, i.e.
- // at least greater than the title bar height
- w =
- h = 100;
- }
+ (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
if ( x == (int)CW_USEDEFAULT )
{
long style,
const wxString& name)
{
+ bool ret wxDUMMY_INITIALIZE(false);
+
// init our fields
Init();
+ wxSize sizeReal = size;
+ if ( !sizeReal.IsFullySpecified() )
+ {
+ sizeReal.SetDefaults(GetDefaultSize());
+ }
+
m_windowStyle = style;
SetName(name);
if ( style & (wxRESIZE_BORDER | wxCAPTION) )
dlgTemplate->style |= DS_MODALFRAME;
- bool ret = CreateDialog(dlgTemplate, title, pos, size);
+ ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
free(dlgTemplate);
-
- return ret;
}
else // !dialog
{
- return CreateFrame(title, pos, size);
+ ret = CreateFrame(title, pos, sizeReal);
+ }
+
+ if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
+ {
+ EnableCloseButton(false);
}
+
+ // for some reason we need to manually send ourselves this message as
+ // otherwise the mnemonics are always shown -- even if they're configured
+ // to be hidden until "Alt" is pressed in the control panel
+ //
+ // this could indicate a bug somewhere else but for now this is the only
+ // fix we have
+ if ( ret )
+ {
+ SendMessage
+ (
+ GetHwnd(),
+ WM_UPDATEUISTATE,
+ MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
+ 0
+ );
+ }
+
+ return ret;
}
wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
{
- wxTopLevelWindows.DeleteObject(this);
-
if ( wxModelessWindows.Find(this) )
wxModelessWindows.DeleteObject(this);
- // If this is the last top-level window, exit.
- if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
+ // after destroying an owned window, Windows activates the next top level
+ // window in Z order but it may be different from our owner (to reproduce
+ // this simply Alt-TAB to another application and back before closing the
+ // owned frame) whereas we always want to yield activation to our parent
+ if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
{
- wxTheApp->SetTopWindow(NULL);
-
- if ( wxTheApp->GetExitOnFrameDelete() )
+ wxWindow *parent = GetParent();
+ if ( parent )
{
- ::PostQuitMessage(0);
+ ::BringWindowToTop(GetHwndOf(parent));
}
}
}
}
else // just show
{
- nShowCmd = SW_SHOW;
+ if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
+ nShowCmd = SW_SHOWNA;
+ else
+ nShowCmd = SW_SHOW;
}
}
else // hide
{
// we can't maximize the hidden frame because it shows it as well, so
// just remember that we should do it later in this case
- m_maximizeOnShow = TRUE;
+ m_maximizeOnShow = maximize;
}
}
bool wxTopLevelWindowMSW::IsMaximized() const
{
+#ifdef __WXWINCE__
+ return FALSE;
+#else
return ::IsZoomed(GetHwnd()) != 0;
+#endif
}
void wxTopLevelWindowMSW::Iconize(bool iconize)
bool wxTopLevelWindowMSW::IsIconized() const
{
+#ifdef __WXWINCE__
+ return FALSE;
+#else
// also update the current state
((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
return m_iconized;
+#endif
}
void wxTopLevelWindowMSW::Restore()
bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
{
- if (show)
+ if ( show == IsFullScreen() )
{
- if (IsFullScreen())
- return FALSE;
+ // nothing to do
+ return TRUE;
+ }
+
+ m_fsIsShowing = show;
- m_fsIsShowing = TRUE;
+ if ( show )
+ {
m_fsStyle = style;
// zap the frame borders
// save the 'normal' window style
- m_fsOldWindowStyle = GetWindowLong((HWND)GetHWND(), GWL_STYLE);
+ m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
// save the old position, width & height, maximize state
m_fsOldSize = GetRect();
LONG offFlags = 0;
if (style & wxFULLSCREEN_NOBORDER)
- offFlags |= WS_BORDER | WS_THICKFRAME;
+ {
+ offFlags |= WS_BORDER;
+#ifndef __WXWINCE__
+ offFlags |= WS_THICKFRAME;
+#endif
+ }
if (style & wxFULLSCREEN_NOCAPTION)
- offFlags |= (WS_CAPTION | WS_SYSMENU);
+ offFlags |= WS_CAPTION | WS_SYSMENU;
- newStyle &= (~offFlags);
+ newStyle &= ~offFlags;
// change our window style to be compatible with full-screen mode
- ::SetWindowLong((HWND)GetHWND(), GWL_STYLE, newStyle);
-
- // resize to the size of the desktop
- int width, height;
+ ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
- RECT rect = wxGetWindowRect(::GetDesktopWindow());
- width = rect.right - rect.left;
- height = rect.bottom - rect.top;
+ wxRect rect;
+#if wxUSE_DISPLAY
+ // resize to the size of the display containing us
+ int dpy = wxDisplay::GetFromWindow(this);
+ if ( dpy != wxNOT_FOUND )
+ {
+ rect = wxDisplay(dpy).GetGeometry();
+ }
+ else // fall back to the main desktop
+#else // wxUSE_DISPLAY
+ {
+ // resize to the size of the desktop
+ wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
+#ifdef __WXWINCE__
+ // FIXME: size of the bottom menu (toolbar)
+ // should be taken in account
+ rect.height += rect.y;
+ rect.y = 0;
+#endif
+ }
+#endif // wxUSE_DISPLAY
- SetSize(width, height);
+ SetSize(rect);
// now flush the window style cache and actually go full-screen
- SetWindowPos((HWND)GetHWND(), HWND_TOP, 0, 0, width, height, SWP_FRAMECHANGED);
+ long flags = SWP_FRAMECHANGED;
- wxSizeEvent event(wxSize(width, height), GetId());
- GetEventHandler()->ProcessEvent(event);
+ // showing the frame full screen should also show it if it's still
+ // hidden
+ if ( !IsShown() )
+ {
+ // don't call wxWindow version to avoid flicker from calling
+ // ::ShowWindow() -- we're going to show the window at the correct
+ // location directly below -- but do call the wxWindowBase version
+ // to sync the internal m_isShown flag
+ wxWindowBase::Show();
- return TRUE;
- }
- else
- {
- if (!IsFullScreen())
- return FALSE;
+ flags |= SWP_SHOWWINDOW;
+ }
- m_fsIsShowing = FALSE;
+ SetWindowPos(GetHwnd(), HWND_TOP,
+ rect.x, rect.y, rect.width, rect.height,
+ flags);
+#if defined(__WXWINCE__) && _WIN32_WCE < 400
+ ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
+#endif
+
+ // finally send an event allowing the window to relayout itself &c
+ wxSizeEvent event(rect.GetSize(), GetId());
+ GetEventHandler()->ProcessEvent(event);
+ }
+ else // stop showing full screen
+ {
+#if defined(__WXWINCE__) && _WIN32_WCE < 400
+ ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
+#endif
Maximize(m_fsIsMaximized);
- SetWindowLong((HWND)GetHWND(),GWL_STYLE, m_fsOldWindowStyle);
- SetWindowPos((HWND)GetHWND(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
+ SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
+ SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
-
- return TRUE;
}
+
+ return TRUE;
}
// ----------------------------------------------------------------------------
bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
{
-#ifndef __WXMICROWIN__
+#if !defined(__WXMICROWIN__)
// get system (a.k.a. window) menu
- HMENU hmenu = ::GetSystemMenu(GetHwnd(), FALSE /* get it */);
+ HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
if ( !hmenu )
{
- wxLogLastError(_T("GetSystemMenu"));
-
- return FALSE;
+ // no system menu at all -- ok if we want to remove the close button
+ // anyhow, but bad if we want to show it
+ return !enable;
}
// enabling/disabling the close item from it also automatically
return TRUE;
}
+#ifndef __WXWINCE__
+
+bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
+{
+ wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
+ _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
+
+ // The empty region signifies that the shape should be removed from the
+ // window.
+ if ( region.IsEmpty() )
+ {
+ if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
+ {
+ wxLogLastError(_T("SetWindowRgn"));
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ // Windows takes ownership of the region, so
+ // we'll have to make a copy of the region to give to it.
+ DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
+ RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
+ ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
+ HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
+ delete[] (char*) rgnData;
+
+ // SetWindowRgn expects the region to be in coordinants
+ // relative to the window, not the client area. Figure
+ // out the offset, if any.
+ RECT rect;
+ DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
+ DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
+ ::GetClientRect(GetHwnd(), &rect);
+ ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
+ ::OffsetRgn(hrgn, -rect.left, -rect.top);
+
+ // Now call the shape API with the new region.
+ if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
+ {
+ wxLogLastError(_T("SetWindowRgn"));
+ return FALSE;
+ }
+ return TRUE;
+}
+
+#endif // !__WXWINCE__
+
+// ----------------------------------------------------------------------------
+// wxTopLevelWindow event handling
+// ----------------------------------------------------------------------------
+
+// Default activation behaviour - set the focus for the first child
+// subwindow found.
+void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
+{
+ if ( event.GetActive() )
+ {
+ // restore focus to the child which was last focused unless we already
+ // have it
+ wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
+
+ wxWindow *winFocus = FindFocus();
+ if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
+ {
+ wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
+ : NULL;
+ if ( !parent )
+ {
+ parent = this;
+ }
+
+ wxSetFocusToChild(parent, &m_winLastFocused);
+ }
+ }
+ else // deactivating
+ {
+ // remember the last focused child if it is our child
+ m_winLastFocused = FindFocus();
+
+ if ( m_winLastFocused )
+ {
+ // let it know that it doesn't have focus any more
+ m_winLastFocused->HandleKillFocus((WXHWND)NULL);
+
+ // and don't remember it if it's a child from some other frame
+ if ( wxGetTopLevelParent(m_winLastFocused) != this )
+ {
+ m_winLastFocused = NULL;
+ }
+ }
+
+ wxLogTrace(_T("focus"),
+ _T("wxTLW %08x deactivated, last focused: %08x."),
+ (int) m_hWnd,
+ (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
+ : NULL));
+
+ event.Skip();
+ }
+}
+
+// the DialogProc for all wxWindows dialogs
+LONG APIENTRY _EXPORT
+wxDlgProc(HWND WXUNUSED(hDlg),
+ UINT message,
+ WPARAM WXUNUSED(wParam),
+ LPARAM WXUNUSED(lParam))
+{
+ switch ( message )
+ {
+ case WM_INITDIALOG:
+ // for this message, returning TRUE tells system to set focus to
+ // the first control in the dialog box, but as we set the focus
+ // ourselves, we return FALSE from here as well, so fall through
+
+ default:
+ // for all the other ones, FALSE means that we didn't process the
+ // message
+ return FALSE;
+ }
+}
+
+// ============================================================================
+// wxTLWHiddenParentModule implementation
+// ============================================================================
+
+HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
+
+const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
+
+bool wxTLWHiddenParentModule::OnInit()
+{
+ ms_hwnd = NULL;
+ ms_className = NULL;
+
+ return TRUE;
+}
+
+void wxTLWHiddenParentModule::OnExit()
+{
+ if ( ms_hwnd )
+ {
+ if ( !::DestroyWindow(ms_hwnd) )
+ {
+ wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
+ }
+
+ ms_hwnd = NULL;
+ }
+
+ if ( ms_className )
+ {
+ if ( !::UnregisterClass(ms_className, wxGetInstance()) )
+ {
+ wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
+ }
+
+ ms_className = NULL;
+ }
+}
+
+/* static */
+HWND wxTLWHiddenParentModule::GetHWND()
+{
+ if ( !ms_hwnd )
+ {
+ if ( !ms_className )
+ {
+ static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
+
+ WNDCLASS wndclass;
+ wxZeroMemory(wndclass);
+
+ wndclass.lpfnWndProc = DefWindowProc;
+ wndclass.hInstance = wxGetInstance();
+ wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
+
+ if ( !::RegisterClass(&wndclass) )
+ {
+ wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
+ }
+ else
+ {
+ ms_className = HIDDEN_PARENT_CLASS;
+ }
+ }
+
+ ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
+ (HMENU)NULL, wxGetInstance(), NULL);
+ if ( !ms_hwnd )
+ {
+ wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
+ }
+ }
+
+ return ms_hwnd;
+}
+
+
projects / wxWidgets.git / blobdiff