03b243da21
Windows XP always has ComCtl32Version 582 available. If the executable includes a manifest version 600 is available.
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: src/msw/datecontrols.cpp
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// Purpose: implementation of date controls helper functions
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// Author: Vadim Zeitlin
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// Created: 2008-04-04
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// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/msw/wrapcctl.h"
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#endif // WX_PRECOMP
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#if wxUSE_DATEPICKCTRL || wxUSE_CALENDARCTRL
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#include "wx/msw/private/datecontrols.h"
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#include "wx/dynlib.h"
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// ============================================================================
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// implementation
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// ============================================================================
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bool wxMSWDateControls::CheckInitialization()
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{
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// although we already call InitCommonControls() in app.cpp which is
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// supposed to initialize all common controls, in comctl32.dll 4.72 (and
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// presumably earlier versions 4.70 and 4.71, date time picker not being
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// supported in < 4.70 anyhow) it does not do it and we have to initialize
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// it explicitly
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// this is initially set to -1 to indicate that we need to perform the
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// initialization and gets set to false or true depending on its result
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static int s_initResult = -1; // MT-ok: used from GUI thread only
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if ( s_initResult == -1 )
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{
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// in any case do nothing the next time, the result won't change and
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// it's enough to give the error only once
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s_initResult = false;
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#if wxUSE_DYNLIB_CLASS
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INITCOMMONCONTROLSEX icex;
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icex.dwSize = sizeof(icex);
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icex.dwICC = ICC_DATE_CLASSES;
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// see comment in wxApp::GetComCtl32Version() explaining the
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// use of wxLoadedDLL
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wxLoadedDLL dllComCtl32(wxT("comctl32.dll"));
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if ( dllComCtl32.IsLoaded() )
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{
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wxLogNull noLog;
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typedef BOOL (WINAPI *ICCEx_t)(INITCOMMONCONTROLSEX *);
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wxDYNLIB_FUNCTION( ICCEx_t, InitCommonControlsEx, dllComCtl32 );
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if ( pfnInitCommonControlsEx )
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{
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s_initResult = (*pfnInitCommonControlsEx)(&icex);
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}
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}
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#endif // wxUSE_DYNLIB_CLASS
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}
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return s_initResult != 0;
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}
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#endif // wxUSE_DATEPICKCTRL || wxUSE_CALENDARCTRL
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