/////////////////////////////////////////////////////////////////////////////
-// Name: display.cpp
+// Name: src/msw/display.cpp
// Purpose: MSW Implementation of wxDisplay class
-// Author: Royce Mitchell III
-// Modified by:
+// Author: Royce Mitchell III, Vadim Zeitlin
+// Modified by: Ryan Norton (IsPrimary override)
// Created: 06/21/02
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
+// Copyright: (c) wxWidgets team
+// Copyright: (c) 2002-2006 wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "display.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_DISPLAY
+#include "wx/display.h"
+
#ifndef WX_PRECOMP
- #include "wx/dynarray.h"
+ #include "wx/dynarray.h"
+ #include "wx/app.h"
+ #include "wx/frame.h"
#endif
-#include "wx/display.h"
+#include "wx/dynload.h"
+#include "wx/sysopt.h"
+
+#include "wx/display_impl.h"
+#include "wx/msw/wrapwin.h"
+#include "wx/msw/missing.h"
+#include "wx/msw/private.h"
+
+#ifndef __WXWINCE__
+ // Older versions of windef.h don't define HMONITOR. Unfortunately, we
+ // can't directly test whether HMONITOR is defined or not in windef.h as
+ // it's not a macro but a typedef, so we test for an unrelated symbol which
+ // is only defined in winuser.h if WINVER >= 0x0500
+ #if !defined(HMONITOR_DECLARED) && !defined(MNS_NOCHECK)
+ DECLARE_HANDLE(HMONITOR);
+ typedef BOOL(CALLBACK * MONITORENUMPROC )(HMONITOR, HDC, LPRECT, LPARAM);
+ typedef struct tagMONITORINFO
+ {
+ DWORD cbSize;
+ RECT rcMonitor;
+ RECT rcWork;
+ DWORD dwFlags;
+ } MONITORINFO, *LPMONITORINFO;
+ typedef struct tagMONITORINFOEX : public tagMONITORINFO
+ {
+ TCHAR szDevice[CCHDEVICENAME];
+ } MONITORINFOEX, *LPMONITORINFOEX;
+ #define MONITOR_DEFAULTTONULL 0x00000000
+ #define MONITOR_DEFAULTTOPRIMARY 0x00000001
+ #define MONITOR_DEFAULTTONEAREST 0x00000002
+ #define MONITORINFOF_PRIMARY 0x00000001
+ #define HMONITOR_DECLARED
+ #endif
+#endif // !__WXWINCE__
+
+// display functions are found in different DLLs under WinCE and normal Win32
+#ifdef __WXWINCE__
+static const wxChar displayDllName[] = wxT("coredll.dll");
+#else
+static const wxChar displayDllName[] = wxT("user32.dll");
+#endif
-// the following define is necessary to access the multi-monitor function
-// declarations in a manner safe to use w/ Windows 95
-// JACS: not used for now until we're clear about the legality
-// of distributing multimon.h. Meanwhile you can download the file
-// yourself from:
-// http://www.microsoft.com/msj/0697/monitor/monitortextfigs.htm#fig4
+// ----------------------------------------------------------------------------
+// typedefs for dynamically loaded Windows functions
+// ----------------------------------------------------------------------------
-#if 0
-#define COMPILE_MULTIMON_STUBS
-#include "wx/msw/multimon.h"
-#endif
+typedef LONG (WINAPI *ChangeDisplaySettingsEx_t)(LPCTSTR lpszDeviceName,
+ LPDEVMODE lpDevMode,
+ HWND hwnd,
+ DWORD dwFlags,
+ LPVOID lParam);
+
+typedef BOOL (WINAPI *EnumDisplayMonitors_t)(HDC,LPCRECT,MONITORENUMPROC,LPARAM);
+typedef HMONITOR (WINAPI *MonitorFromPoint_t)(POINT,DWORD);
+typedef HMONITOR (WINAPI *MonitorFromWindow_t)(HWND,DWORD);
+typedef BOOL (WINAPI *GetMonitorInfo_t)(HMONITOR,LPMONITORINFO);
+
+#ifndef __WXWINCE__
+// emulation of ChangeDisplaySettingsEx() for Win95
+LONG WINAPI ChangeDisplaySettingsExForWin95(LPCTSTR WXUNUSED(lpszDeviceName),
+ LPDEVMODE lpDevMode,
+ HWND WXUNUSED(hwnd),
+ DWORD dwFlags,
+ LPVOID WXUNUSED(lParam))
+{
+ return ::ChangeDisplaySettings(lpDevMode, dwFlags);
+}
+#endif // !__WXWINCE__
-// ---------------------------------------------------------------------------
-// constants
-// ---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// display information classes
+// ----------------------------------------------------------------------------
-// ---------------------------------------------------------------------------
-// private functions
-// ---------------------------------------------------------------------------
+struct wxDisplayInfo
+{
+ wxDisplayInfo(HMONITOR hmon = NULL)
+ {
+ m_hmon = hmon;
+ m_flags = (DWORD)-1;
+ }
+
+ virtual ~wxDisplayInfo() { }
+
+
+ // use GetMonitorInfo() to fill in all of our fields if needed (i.e. if it
+ // hadn't been done before)
+ void Initialize();
-void wxmswInitDisplayRectArray();
+
+ // handle of this monitor used by MonitorXXX() functions, never NULL
+ HMONITOR m_hmon;
+
+ // the entire area of this monitor in virtual screen coordinates
+ wxRect m_rect;
+
+ // the work or client area, i.e. the area available for the normal windows
+ wxRect m_rectClient;
+
+ // the display device name for this monitor, empty initially and retrieved
+ // on demand by DoGetName()
+ wxString m_devName;
+
+ // the flags of this monitor, also used as initialization marker: if this
+ // is -1, GetMonitorInfo() hadn't been called yet
+ DWORD m_flags;
+};
+
+WX_DEFINE_ARRAY_PTR(wxDisplayInfo *, wxDisplayInfoArray);
// ----------------------------------------------------------------------------
-// private classes
+// common base class for all Win32 wxDisplayImpl versions
// ----------------------------------------------------------------------------
-class wxmswDisplayInfo;
+class wxDisplayImplWin32Base : public wxDisplayImpl
+{
+public:
+ wxDisplayImplWin32Base(unsigned n, wxDisplayInfo& info)
+ : wxDisplayImpl(n),
+ m_info(info)
+ {
+ }
+
+ virtual wxRect GetGeometry() const;
+ virtual wxRect GetClientArea() const;
+ virtual wxString GetName() const;
+ virtual bool IsPrimary() const;
-WX_DECLARE_OBJARRAY(wxmswDisplayInfo, wxmswDisplayInfoArray);
+ virtual wxVideoMode GetCurrentMode() const;
-class wxmswDisplayInfo
+protected:
+ // convert a DEVMODE to our wxVideoMode
+ static wxVideoMode ConvertToVideoMode(const DEVMODE& dm)
+ {
+ // note that dmDisplayFrequency may be 0 or 1 meaning "standard one"
+ // and although 0 is ok for us we don't want to return modes with 1hz
+ // refresh
+ return wxVideoMode(dm.dmPelsWidth,
+ dm.dmPelsHeight,
+ dm.dmBitsPerPel,
+ dm.dmDisplayFrequency > 1 ? dm.dmDisplayFrequency : 0);
+ }
+
+ wxDisplayInfo& m_info;
+};
+
+// ----------------------------------------------------------------------------
+// common base class for all Win32 wxDisplayFactory versions
+// ----------------------------------------------------------------------------
+
+// functions dynamically bound by wxDisplayFactoryWin32Base::Initialize()
+static MonitorFromPoint_t gs_MonitorFromPoint = NULL;
+static MonitorFromWindow_t gs_MonitorFromWindow = NULL;
+static GetMonitorInfo_t gs_GetMonitorInfo = NULL;
+
+class wxDisplayFactoryWin32Base : public wxDisplayFactory
{
public:
- HMONITOR m_hmon;
- DISPLAY_DEVICE m_dd;
- wxRect m_rect;
- int m_depth;
-};
+ virtual ~wxDisplayFactoryWin32Base();
-wxmswDisplayInfoArray* g_wxmswDisplayInfoArray = 0;
+ bool IsOk() const { return !m_displays.empty(); }
-#include <wx/arrimpl.cpp> // this is a magic incantation which must be done!
-WX_DEFINE_OBJARRAY(wxmswDisplayInfoArray);
+ virtual unsigned GetCount() { return unsigned(m_displays.size()); }
+ virtual int GetFromPoint(const wxPoint& pt);
+ virtual int GetFromWindow(const wxWindow *window);
-// ===========================================================================
-// implementation
-// ===========================================================================
+protected:
+ // ctor checks if the current system supports multimon API and dynamically
+ // bind the functions we need if this is the case and sets
+ // ms_supportsMultimon if they're available
+ wxDisplayFactoryWin32Base();
-BOOL CALLBACK wxmswMonitorEnumProc (
- HMONITOR hMonitor, // handle to display monitor
- HDC hdcMonitor, // handle to monitor-appropriate device context
- LPRECT lprcMonitor, // pointer to monitor intersection rectangle
- LPARAM dwData // data passed from EnumDisplayMonitors
-)
+ // delete all m_displays elements: can be called from the derived class
+ // dtor if it is important to do this before destroying it,
+ // otherwise will be done by our dtor
+ void Clear();
+
+ // find the monitor corresponding to the given handle, return wxNOT_FOUND
+ // if not found
+ int FindDisplayFromHMONITOR(HMONITOR hmon) const;
+
+
+ // flag indicating whether gs_MonitorXXX functions are available
+ static int ms_supportsMultimon;
+
+ // the array containing information about all available displays, should be
+ // filled by the derived class ctors
+ wxDisplayInfoArray m_displays;
+
+
+ wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base);
+};
+
+// ----------------------------------------------------------------------------
+// wxDisplay implementation using Windows multi-monitor support functions
+// ----------------------------------------------------------------------------
+
+class wxDisplayImplMultimon : public wxDisplayImplWin32Base
{
- wxmswDisplayInfo* info = new wxmswDisplayInfo();
- info->m_hmon = hMonitor;
- info->m_rect.SetX ( lprcMonitor->left );
- info->m_rect.SetY ( lprcMonitor->top );
- info->m_rect.SetWidth ( lprcMonitor->right - lprcMonitor->left );
- info->m_rect.SetHeight ( lprcMonitor->bottom - lprcMonitor->top );
- // now add this monitor to the array
- g_wxmswDisplayInfoArray->Add ( info );
+public:
+ wxDisplayImplMultimon(unsigned n, wxDisplayInfo& info)
+ : wxDisplayImplWin32Base(n, info)
+ {
+ }
- return TRUE; // continue the enumeration
-}
+ virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
+ virtual bool ChangeMode(const wxVideoMode& mode);
+
+private:
+ wxDECLARE_NO_COPY_CLASS(wxDisplayImplMultimon);
+};
-class wxmswDisplayModule : public wxModule
+class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base
{
- DECLARE_DYNAMIC_CLASS(wxmswDisplayModule)
public:
- wxmswDisplayModule() {}
- bool OnInit();
- void OnExit();
+ wxDisplayFactoryMultimon();
+
+ virtual wxDisplayImpl *CreateDisplay(unsigned n);
+
+private:
+ // EnumDisplayMonitors() callback
+ static BOOL CALLBACK MultimonEnumProc(HMONITOR hMonitor,
+ HDC hdcMonitor,
+ LPRECT lprcMonitor,
+ LPARAM dwData);
+
+ // add a monitor description to m_displays array
+ void AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor);
};
-IMPLEMENT_DYNAMIC_CLASS(wxmswDisplayModule, wxModule)
-bool wxmswDisplayModule::OnInit()
+// ============================================================================
+// common classes implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxDisplay
+// ----------------------------------------------------------------------------
+
+/* static */ wxDisplayFactory *wxDisplay::CreateFactory()
+{
+ wxDisplayFactoryMultimon *factoryMM = new wxDisplayFactoryMultimon;
+
+ if ( factoryMM->IsOk() )
+ return factoryMM;
+
+ delete factoryMM;
+
+ // finally fall back to a stub implementation if all else failed (Win95?)
+ return new wxDisplayFactorySingle;
+}
+
+
+// ----------------------------------------------------------------------------
+// wxDisplayInfo
+// ----------------------------------------------------------------------------
+
+void wxDisplayInfo::Initialize()
{
- g_wxmswDisplayInfoArray = new wxmswDisplayInfoArray();
- if ( !g_wxmswDisplayInfoArray )
+ if ( m_flags == (DWORD)-1 )
{
- wxFAIL_MSG(wxT("Couldn't allocate array for display information"));
- return FALSE;
+ WinStruct<MONITORINFOEX> monInfo;
+ if ( !gs_GetMonitorInfo(m_hmon, (LPMONITORINFO)&monInfo) )
+ {
+ wxLogLastError(wxT("GetMonitorInfo"));
+ m_flags = 0;
+ return;
+ }
+
+ wxCopyRECTToRect(monInfo.rcMonitor, m_rect);
+ wxCopyRECTToRect(monInfo.rcWork, m_rectClient);
+ m_devName = monInfo.szDevice;
+ m_flags = monInfo.dwFlags;
}
+}
- // Royce3: I'm assuming that the monitor's are enumerated in the same
- // order as the calls to EnumDisplayDevices below. We shall soon see
- // if that assumption is correct.
- if ( !EnumDisplayMonitors ( NULL, NULL, wxmswMonitorEnumProc, 0 ) )
- wxLogLastError(wxT("EnumDisplayMonitors"));
+// ----------------------------------------------------------------------------
+// wxDisplayImplWin32Base
+// ----------------------------------------------------------------------------
- size_t iDevNum = 0, count = g_wxmswDisplayInfoArray->Count();
- while ( iDevNum < count )
- {
- wxmswDisplayInfo& info = (*g_wxmswDisplayInfoArray)[iDevNum];
+wxRect wxDisplayImplWin32Base::GetGeometry() const
+{
+ if ( m_info.m_rect.IsEmpty() )
+ m_info.Initialize();
- // MSDN: Before calling EnumDisplayDevices, you must initialize the cb
- // member of DISPLAY_DEVICE to the size, in bytes, of DISPLAY_DEVICE
- info.m_dd.cb = sizeof(info.m_dd);
+ return m_info.m_rect;
+}
- if ( !EnumDisplayDevices ( NULL, iDevNum, &info.m_dd, 0 ) )
- wxLogLastError(wxT("EnumDisplayDevices"));
+wxRect wxDisplayImplWin32Base::GetClientArea() const
+{
+ if ( m_info.m_rectClient.IsEmpty() )
+ m_info.Initialize();
- // get this display's Depth
- DEVMODE devmode;
- memset ( &devmode, 0, sizeof(devmode) );
+ return m_info.m_rectClient;
+}
- // MSDN: Before calling EnumDisplaySettings, set the dmSize member to
- // sizeof(DEVMODE), and set the dmDriverExtra member to indicate the size,
- // in bytes, of the additional space available to receive private
- // driver-data.
- devmode.dmSize = sizeof(devmode);
- devmode.dmDriverExtra = 0;
+wxString wxDisplayImplWin32Base::GetName() const
+{
+ if ( m_info.m_devName.empty() )
+ m_info.Initialize();
- if ( !EnumDisplaySettings ( info.m_dd.DeviceName, ENUM_CURRENT_SETTINGS, &devmode ) )
- {
- wxLogLastError(wxT("EnumDisplaySettings"));
- devmode.dmFields = 0;
- }
+ return m_info.m_devName;
+}
- if ( !(devmode.dmFields&DM_BITSPERPEL) )
- info.m_depth = -1;
- else
- info.m_depth = devmode.dmBitsPerPel;
+bool wxDisplayImplWin32Base::IsPrimary() const
+{
+ if ( m_info.m_flags == (DWORD)-1 )
+ m_info.Initialize();
+ return (m_info.m_flags & MONITORINFOF_PRIMARY) != 0;
+}
- iDevNum++;
+wxVideoMode wxDisplayImplWin32Base::GetCurrentMode() const
+{
+ wxVideoMode mode;
+
+ // The first parameter of EnumDisplaySettings() must be NULL under Win95
+ // according to MSDN. The version of GetName() we implement for Win95
+ // returns an empty string.
+ const wxString name = GetName();
+ const wxChar * const deviceName = name.empty()
+ ? (const wxChar*)NULL
+ : (const wxChar*)name.c_str();
+
+ DEVMODE dm;
+ dm.dmSize = sizeof(dm);
+ dm.dmDriverExtra = 0;
+ if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) )
+ {
+ wxLogLastError(wxT("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
}
- return TRUE;
+ else
+ {
+ mode = ConvertToVideoMode(dm);
+ }
+
+ return mode;
}
-void wxmswDisplayModule::OnExit()
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryWin32Base
+// ----------------------------------------------------------------------------
+
+int wxDisplayFactoryWin32Base::ms_supportsMultimon = -1;
+
+wxDisplayFactoryWin32Base::wxDisplayFactoryWin32Base()
{
- size_t count = g_wxmswDisplayInfoArray->Count();
- while ( count-- )
+ if ( ms_supportsMultimon == -1 )
{
- wxmswDisplayInfo* info = g_wxmswDisplayInfoArray->Detach ( count );
- delete info;
+ ms_supportsMultimon = 0;
+
+ wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+
+ if ( (wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllDisplay)) == NULL ||
+ (wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllDisplay)) == NULL ||
+ (wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllDisplay)) == NULL )
+ return;
+
+ ms_supportsMultimon = 1;
+
+ // we can safely let dllDisplay go out of scope, the DLL itself will
+ // still remain loaded as all programs link to it statically anyhow
}
- delete g_wxmswDisplayInfoArray;
- g_wxmswDisplayInfoArray = 0;
}
-// ---------------------------------------------------------------------------
-// wxDisplay
-// ---------------------------------------------------------------------------
+void wxDisplayFactoryWin32Base::Clear()
+{
+ WX_CLEAR_ARRAY(m_displays);
+}
-size_t wxDisplayBase::GetCount()
+wxDisplayFactoryWin32Base::~wxDisplayFactoryWin32Base()
{
- return GetSystemMetrics ( SM_CMONITORS );
+ Clear();
}
-int wxDisplayBase::GetFromPoint ( const wxPoint& pt )
+// helper for GetFromPoint() and GetFromWindow()
+int wxDisplayFactoryWin32Base::FindDisplayFromHMONITOR(HMONITOR hmon) const
+{
+ if ( hmon )
+ {
+ const size_t count = m_displays.size();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( hmon == m_displays[n]->m_hmon )
+ return n;
+ }
+ }
+
+ return wxNOT_FOUND;
+}
+
+int wxDisplayFactoryWin32Base::GetFromPoint(const wxPoint& pt)
{
POINT pt2;
pt2.x = pt.x;
pt2.y = pt.y;
- HMONITOR hmon = MonitorFromPoint ( pt2, 0 );
- if ( !hmon )
- return -1;
- size_t count = wxDisplayBase::GetCount(), index;
+ return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2,
+ MONITOR_DEFAULTTONULL));
+}
+
+int wxDisplayFactoryWin32Base::GetFromWindow(const wxWindow *window)
+{
+ return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window),
+ MONITOR_DEFAULTTONULL));
+}
- for ( index = 0; index < count; index++ )
+// ============================================================================
+// wxDisplay implementation using Win32 multimon API
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryMultimon initialization
+// ----------------------------------------------------------------------------
+
+wxDisplayFactoryMultimon::wxDisplayFactoryMultimon()
+{
+ if ( !ms_supportsMultimon )
+ return;
+
+ // look up EnumDisplayMonitors()
+ EnumDisplayMonitors_t pfnEnumDisplayMonitors;
{
- if ( hmon == (*g_wxmswDisplayInfoArray)[index].m_hmon )
- return index;
+ wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+ if ( (wxDL_INIT_FUNC(pfn, EnumDisplayMonitors, dllDisplay)) == NULL )
+ return;
}
- return -1;
+ // enumerate all displays
+ if ( !pfnEnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) )
+ {
+ wxLogLastError(wxT("EnumDisplayMonitors"));
+ }
}
-wxDisplay::wxDisplay ( size_t index ) : wxDisplayBase ( index )
+/* static */
+BOOL CALLBACK
+wxDisplayFactoryMultimon::MultimonEnumProc(
+ HMONITOR hMonitor, // handle to display monitor
+ HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context
+ LPRECT lprcMonitor, // pointer to monitor intersection rectangle
+ LPARAM dwData // data passed from EnumDisplayMonitors (this)
+)
{
+ wxDisplayFactoryMultimon *const self = (wxDisplayFactoryMultimon *)dwData;
+ self->AddDisplay(hMonitor, lprcMonitor);
+
+ // continue the enumeration
+ return TRUE;
}
-wxRect wxDisplay::GetGeometry() const
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryMultimon helper functions
+// ----------------------------------------------------------------------------
+
+void wxDisplayFactoryMultimon::AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor)
{
- return (*g_wxmswDisplayInfoArray)[m_index].m_rect;
+ wxDisplayInfo *info = new wxDisplayInfo(hMonitor);
+
+ // we also store the display geometry
+ info->m_rect = wxRect(lprcMonitor->left, lprcMonitor->top,
+ lprcMonitor->right - lprcMonitor->left,
+ lprcMonitor->bottom - lprcMonitor->top);
+
+ // now add this monitor to the array
+ m_displays.Add(info);
}
-int wxDisplay::GetDepth() const
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryMultimon inherited pure virtuals implementation
+// ----------------------------------------------------------------------------
+
+wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(unsigned n)
{
- return (*g_wxmswDisplayInfoArray)[m_index].m_depth;
+ wxCHECK_MSG( n < m_displays.size(), NULL, wxT("invalid display index") );
+
+ return new wxDisplayImplMultimon(n, *(m_displays[n]));
}
-wxString wxDisplay::GetName() const
+// ----------------------------------------------------------------------------
+// wxDisplayImplMultimon implementation
+// ----------------------------------------------------------------------------
+
+wxArrayVideoModes
+wxDisplayImplMultimon::GetModes(const wxVideoMode& modeMatch) const
{
- return wxString ( (*g_wxmswDisplayInfoArray)[m_index].m_dd.DeviceName );
+ wxArrayVideoModes modes;
+
+ // The first parameter of EnumDisplaySettings() must be NULL under Win95
+ // according to MSDN. The version of GetName() we implement for Win95
+ // returns an empty string.
+ const wxString name = GetName();
+ const wxChar * const deviceName = name.empty()
+ ? (const wxChar*)NULL
+ : (const wxChar*)name.c_str();
+
+ DEVMODE dm;
+ dm.dmSize = sizeof(dm);
+ dm.dmDriverExtra = 0;
+ for ( int iModeNum = 0;
+ ::EnumDisplaySettings(deviceName, iModeNum, &dm);
+ iModeNum++ )
+ {
+ const wxVideoMode mode = ConvertToVideoMode(dm);
+ if ( mode.Matches(modeMatch) )
+ {
+ modes.Add(mode);
+ }
+ }
+
+ return modes;
+}
+
+bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
+{
+ // prepare ChangeDisplaySettingsEx() parameters
+ DEVMODE dm;
+ DEVMODE *pDevMode;
+
+ int flags;
+
+ if ( mode == wxDefaultVideoMode )
+ {
+ // reset the video mode to default
+ pDevMode = NULL;
+ flags = 0;
+ }
+ else // change to the given mode
+ {
+ wxCHECK_MSG( mode.GetWidth() && mode.GetHeight(), false,
+ wxT("at least the width and height must be specified") );
+
+ wxZeroMemory(dm);
+ dm.dmSize = sizeof(dm);
+ dm.dmDriverExtra = 0;
+ dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
+ dm.dmPelsWidth = mode.GetWidth();
+ dm.dmPelsHeight = mode.GetHeight();
+
+ if ( mode.GetDepth() )
+ {
+ dm.dmFields |= DM_BITSPERPEL;
+ dm.dmBitsPerPel = mode.GetDepth();
+ }
+
+ if ( mode.GetRefresh() )
+ {
+ dm.dmFields |= DM_DISPLAYFREQUENCY;
+ dm.dmDisplayFrequency = mode.GetRefresh();
+ }
+
+ pDevMode = &dm;
+
+#ifdef __WXWINCE__
+ flags = 0;
+#else // !__WXWINCE__
+ flags = CDS_FULLSCREEN;
+#endif // __WXWINCE__/!__WXWINCE__
+ }
+
+
+ // get pointer to the function dynamically
+ //
+ // we're only called from the main thread, so it's ok to use static
+ // variable
+ static ChangeDisplaySettingsEx_t pfnChangeDisplaySettingsEx = NULL;
+ if ( !pfnChangeDisplaySettingsEx )
+ {
+ wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+ if ( dllDisplay.IsLoaded() )
+ {
+ wxDL_INIT_FUNC_AW(pfn, ChangeDisplaySettingsEx, dllDisplay);
+ }
+ //else: huh, no this DLL must always be present, what's going on??
+
+#ifndef __WXWINCE__
+ if ( !pfnChangeDisplaySettingsEx )
+ {
+ // we must be under Win95 and so there is no multiple monitors
+ // support anyhow
+ pfnChangeDisplaySettingsEx = ChangeDisplaySettingsExForWin95;
+ }
+#endif // !__WXWINCE__
+ }
+
+ // do change the mode
+ switch ( pfnChangeDisplaySettingsEx
+ (
+ GetName().wx_str(), // display name
+ pDevMode, // dev mode or NULL to reset
+ NULL, // reserved
+ flags,
+ NULL // pointer to video parameters (not used)
+ ) )
+ {
+ case DISP_CHANGE_SUCCESSFUL:
+ // ok
+ {
+ // If we have a top-level, full-screen frame, emulate
+ // the DirectX behavior and resize it. This makes this
+ // API quite a bit easier to use.
+ wxWindow *winTop = wxTheApp->GetTopWindow();
+ wxFrame *frameTop = wxDynamicCast(winTop, wxFrame);
+ if (frameTop && frameTop->IsFullScreen())
+ {
+ wxVideoMode current = GetCurrentMode();
+ frameTop->SetClientSize(current.GetWidth(), current.GetHeight());
+ }
+ }
+ return true;
+
+ case DISP_CHANGE_BADMODE:
+ // don't complain about this, this is the only "expected" error
+ break;
+
+ default:
+ wxFAIL_MSG( wxT("unexpected ChangeDisplaySettingsEx() return value") );
+ }
+
+ return false;
}
-#endif//wxUSE_DISPLAY
+#endif // wxUSE_DISPLAY
projects / wxWidgets.git / blobdiff