+wxString wxDisplay::GetNameForEnumSettings() const
+{
+ int major, minor;
+ const bool isWin95 = wxGetOsVersion(&major, &minor) == wxWIN95 &&
+ major == 4 && minor == 0;
+
+ // the first parameter of EnumDisplaySettings() must be NULL under Win95
+ // according to MSDN but GetMonitorInfo() stub in multimon.h still returns
+ // something even in this case, so we have to correct this manually
+ wxString name;
+ if ( !isWin95 )
+ name = GetName();
+
+ return name;
+}
+
+// ----------------------------------------------------------------------------
+// video modes enumeration
+// ----------------------------------------------------------------------------
+
+wxArrayVideoModes
+wxDisplay::DoGetModesDirectX(const wxVideoMode& WXUNUSED(modeMatch)) const
+{
+ wxArrayVideoModes modes;
+
+ IDirectDraw2 *pDD = (*gs_displays)[m_index].m_pDD2;
+
+ if ( pDD )
+ {
+ HRESULT hr = pDD->EnumDisplayModes
+ (
+ DDEDM_REFRESHRATES,
+ NULL, // all modes (TODO: use modeMatch!)
+ &modes, // callback parameter
+ wxDDEnumModesCallback
+ );
+
+ if ( FAILED(hr) )
+ {
+ wxLogApiError(_T("IDirectDraw::EnumDisplayModes"), hr);
+ }
+ }
+
+ return modes;
+}
+
+wxArrayVideoModes
+wxDisplay::DoGetModesWindows(const wxVideoMode& modeMatch) const
+{
+ wxArrayVideoModes modes;
+
+ const wxString name = GetNameForEnumSettings();
+
+ const wxChar * const deviceName = name.empty() ? NULL : name.c_str();
+
+ DEVMODE dm;
+ for ( int iModeNum = 0;
+ ::EnumDisplaySettings(deviceName, iModeNum, &dm);
+ iModeNum++ )
+ {
+ const wxVideoMode mode = ConvertToVideoMode(dm);
+ if ( mode.Matches(modeMatch) )
+ {
+ modes.Add(mode);
+ }
+ }
+
+ return modes;
+}
+
+wxArrayVideoModes wxDisplay::GetModes(const wxVideoMode& modeMatch) const
+{
+ return gs_useDirectX ? DoGetModesDirectX(modeMatch)
+ : DoGetModesWindows(modeMatch);
+}
+
+wxVideoMode wxDisplay::GetCurrentMode() const
+{
+ wxVideoMode mode;
+
+ const wxString name = GetNameForEnumSettings();
+
+ DEVMODE dm;
+ if ( !::EnumDisplaySettings(name.empty() ? NULL : name.c_str(),
+ ENUM_CURRENT_SETTINGS,
+ &dm) )
+ {
+ wxLogLastError(_T("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
+ }
+ else
+ {
+ mode = ConvertToVideoMode(dm);
+ }
+
+ return mode;
+}
+
+// ----------------------------------------------------------------------------
+// video mode switching
+// ----------------------------------------------------------------------------
+
+bool wxDisplay::DoChangeModeDirectX(const wxVideoMode& mode)
+{
+ IDirectDraw2 *pDD = (*gs_displays)[m_index].m_pDD2;
+ if ( !pDD )
+ return false;
+
+ wxWindow *winTop = wxTheApp->GetTopWindow();
+ wxCHECK_MSG( winTop, false, _T("top level window required for DirectX") );
+
+ HRESULT hr = pDD->SetCooperativeLevel
+ (
+ GetHwndOf(winTop),
+ DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN
+ );
+ if ( FAILED(hr) )
+ {
+ wxLogApiError(_T("IDirectDraw::SetCooperativeLevel"), hr);
+
+ return false;
+ }
+
+ hr = pDD->SetDisplayMode(mode.w, mode.h, mode.bpp, mode.refresh, 0);
+ if ( FAILED(hr) )
+ {
+ wxLogApiError(_T("IDirectDraw::SetDisplayMode"), hr);
+
+ return false;
+ }
+
+
+ return true;
+}
+
+bool wxDisplay::DoChangeModeWindows(const wxVideoMode& mode)
+{
+ // prepare ChangeDisplaySettingsEx() parameters
+ DEVMODE dm,
+ *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.w && mode.h, false,
+ _T("at least the width and height must be specified") );
+
+ wxZeroMemory(dm);
+ dm.dmSize = sizeof(dm);
+ dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
+ dm.dmPelsWidth = mode.w;
+ dm.dmPelsHeight = mode.h;
+
+ if ( mode.bpp )
+ {
+ dm.dmFields |= DM_BITSPERPEL;
+ dm.dmBitsPerPel = mode.bpp;
+ }
+
+ if ( mode.refresh )
+ {
+ dm.dmFields |= DM_DISPLAYFREQUENCY;
+ dm.dmDisplayFrequency = mode.refresh;
+ }
+
+ pDevMode = &dm;
+
+ flags = CDS_FULLSCREEN;
+ }
+
+
+ // 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 dllUser32(_T("user32.dll"));
+ if ( dllUser32.IsLoaded() )
+ {
+ pfnChangeDisplaySettingsEx = (ChangeDisplaySettingsEx_t)
+ dllUser32.GetSymbol(WINFUNC(ChangeDisplaySettingsEx));
+ }
+ //else: huh, no user32.dll??
+
+ if ( !pfnChangeDisplaySettingsEx )
+ {
+ // we must be under Win95 and so there is no multiple monitors
+ // support anyhow
+ pfnChangeDisplaySettingsEx = ChangeDisplaySettingsExForWin95;
+ }
+ }
+
+ // do change the mode
+ switch ( pfnChangeDisplaySettingsEx
+ (
+ GetName(), // 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.w, current.h);
+ }
+ }
+ return true;
+
+ case DISP_CHANGE_BADMODE:
+ // don't complain about this, this is the only "expected" error
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unexpected ChangeDisplaySettingsEx() return value") );
+ }
+
+ return false;
+}
+
+bool wxDisplay::ChangeMode(const wxVideoMode& mode)
projects / wxWidgets.git / blobdiff