bool wxDisplayImplMacOSX::ChangeMode( const wxVideoMode& mode )
{
#ifndef __WXOSX_IPHONE__
if (mode == wxDefaultVideoMode)
{
CGRestorePermanentDisplayConfiguration();
return true;
}
#endif
boolean_t bExactMatch;
CFDictionaryRef theCGMode = CGDisplayBestModeForParametersAndRefreshRate(
m_id,
(size_t)mode.GetDepth(),
(size_t)mode.GetWidth(),
(size_t)mode.GetHeight(),
(double)mode.GetRefresh(),
&bExactMatch );
bool bOK = bExactMatch;
if (bOK)
bOK = CGDisplaySwitchToMode( m_id, theCGMode ) == CGDisplayNoErr;
return bOK;
}
static bool wxCreateMGL_WM(const wxVideoMode& displayMode)
{
int mode;
int refresh = MGL_DEFAULT_REFRESH;
#if wxUSE_SYSTEM_OPTIONS
if ( wxSystemOptions::HasOption(wxT("mgl.screen-refresh")) )
refresh = wxSystemOptions::GetOptionInt(wxT("mgl.screen-refresh"));
#endif
mode = MGL_findMode(displayMode.GetWidth(),
displayMode.GetHeight(),
displayMode.GetDepth());
if ( mode == -1 )
{
wxLogError(_("Mode %ix%i-%i not available."),
displayMode.GetWidth(),
displayMode.GetHeight(),
displayMode.GetDepth());
return false;
}
g_displayDC = new MGLDisplayDC(mode, 1, refresh);
if ( !g_displayDC->isValid() )
{
delete g_displayDC;
g_displayDC = NULL;
return false;
}
g_winMng = MGL_wmCreate(g_displayDC->getDC());
if (!g_winMng)
return false;
return true;
}
bool wxDisplayImplMacOSX::ChangeMode( const wxVideoMode& mode )
{
// Changing to default mode (wxDefaultVideoMode) doesn't
// work because we don't have access to the system's 'scrn'
// resource which holds the user's mode which the system
// will return to after this app is done
boolean_t bExactMatch;
CFDictionaryRef theCGMode = CGDisplayBestModeForParametersAndRefreshRate(
m_id,
(size_t)mode.GetDepth(),
(size_t)mode.GetWidth(),
(size_t)mode.GetHeight(),
(double)mode.GetRefresh(),
&bExactMatch );
bool bOK = bExactMatch;
if (bOK)
bOK = CGDisplaySwitchToMode( m_id, theCGMode ) == CGDisplayNoErr;
return bOK;
}
bool wxApp::SetDisplayMode(const wxVideoMode& mode)
{
if ( !mode.IsOk() )
{
return false;
}
if ( g_displayDC != NULL )
{
// FIXME_MGL -- we currently don't allow to switch video mode
// more than once. This can hopefully be changed...
wxFAIL_MSG(wxT("Can't change display mode after intialization!"));
return false;
}
if ( !wxCreateMGL_WM(mode) )
return false;
gs_rootWindow = new wxRootWindow;
m_displayMode = mode;
return true;
}
void Add(const wxVideoMode& mode)
{
if ( mode.Matches(m_modeMatch) )
m_modes.Add(mode);
}
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;
}
bool wxDisplayMSW::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;
flags = CDS_FULLSCREEN;
}
// do change the mode
switch ( ::ChangeDisplaySettingsEx
(
GetName().t_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 behaviour 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;
}