/// <summary>
        ///  Refreshes this thread's theme handle cache.
        /// </summary>
        private static void RefreshCache()
        {
            ThemeHandle?tHandle = null;

            if (t_themeHandles != null)
            {
                string[] classNames = new string[t_themeHandles.Keys.Count];
                t_themeHandles.Keys.CopyTo(classNames, 0);

                foreach (string className in classNames)
                {
                    tHandle = (ThemeHandle?)t_themeHandles[className];
                    if (tHandle != null)
                    {
                        tHandle.Dispose();
                    }

                    // We don't call IsSupported here, since that could cause RefreshCache to be called again,
                    // leading to stack overflow.
                    if (AreClientAreaVisualStylesSupported)
                    {
                        tHandle = ThemeHandle.Create(className, false);
                        if (tHandle != null)
                        {
                            t_themeHandles[className] = tHandle;
                        }
                    }
                }
            }
        }
Beispiel #2
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        internal Size GetPartSize(IDeviceContext dc, ThemeSizeType type, IntPtr hWnd)
        {
            if (dc == null)
            {
                throw new ArgumentNullException(nameof(dc));
            }

            // valid values are 0x0 to 0x2
            if (!ClientUtils.IsEnumValid(type, (int)type, (int)ThemeSizeType.Minimum, (int)ThemeSizeType.Draw))
            {
                throw new InvalidEnumArgumentException(nameof(type), (int)type, typeof(ThemeSizeType));
            }

            NativeMethods.SIZE size = new NativeMethods.SIZE();

            using (WindowsGraphicsWrapper wgr = new WindowsGraphicsWrapper(dc, AllGraphicsProperties))
            {
                HandleRef hdc = new HandleRef(wgr, wgr.WindowsGraphics.DeviceContext.Hdc);
                if (DpiHelper.IsPerMonitorV2Awareness && (IntPtr.Zero != hWnd))
                {
                    using (ThemeHandle hTheme = ThemeHandle.Create(_class, true, new HandleRef(null, hWnd)))
                    {
                        lastHResult = SafeNativeMethods.GetThemePartSize(new HandleRef(this, hTheme.NativeHandle), hdc, part, state, null, type, size);
                    }
                }
                else
                {
                    lastHResult = SafeNativeMethods.GetThemePartSize(new HandleRef(this, Handle), hdc, part, state, null, type, size);
                }
            }

            return(new Size(size.cx, size.cy));
        }
Beispiel #3
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        private static IntPtr GetHandle(string className, bool throwExceptionOnFail)
        {
            ThemeHandle handle;

            if (themeHandles == null)
            {
                CreateThemeHandleHashtable();
            }
            if (threadCacheVersion != globalCacheVersion)
            {
                RefreshCache();
                threadCacheVersion = globalCacheVersion;
            }
            if (!themeHandles.Contains(className))
            {
                handle = ThemeHandle.Create(className, throwExceptionOnFail);
                if (handle == null)
                {
                    return(IntPtr.Zero);
                }
                themeHandles.Add(className, handle);
            }
            else
            {
                handle = (ThemeHandle)themeHandles[className];
            }
            return(handle.NativeHandle);
        }
Beispiel #4
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        internal void DrawBackground(IDeviceContext dc, Rectangle bounds, Rectangle clipRectangle, IntPtr hWnd)
        {
            if (dc == null)
            {
                throw new ArgumentNullException(nameof(dc));
            }
            if (bounds.Width < 0 || bounds.Height < 0)
            {
                return;
            }
            if (clipRectangle.Width < 0 || clipRectangle.Height < 0)
            {
                return;
            }

            using (WindowsGraphicsWrapper wgr = new WindowsGraphicsWrapper(dc, AllGraphicsProperties))
            {
                HandleRef hdc = new HandleRef(wgr, wgr.WindowsGraphics.DeviceContext.Hdc);
                if (IntPtr.Zero != hWnd)
                {
                    using (ThemeHandle hTheme = ThemeHandle.Create(_class, true, new HandleRef(null, hWnd)))
                    {
                        lastHResult = SafeNativeMethods.DrawThemeBackground(new HandleRef(this, hTheme.NativeHandle), hdc, part, state, new NativeMethods.COMRECT(bounds), new NativeMethods.COMRECT(clipRectangle));
                    }
                }
                else
                {
                    lastHResult = SafeNativeMethods.DrawThemeBackground(new HandleRef(this, Handle), hdc, part, state, new NativeMethods.COMRECT(bounds), new NativeMethods.COMRECT(clipRectangle));
                }
            }
        }
        /// <summary>
        ///  Retrieves a IntPtr theme handle for the given class from the themeHandle cache. If its not
        ///  present in the cache, it creates a new ThemeHandle object and stores it there.
        /// </summary>
        private static IntPtr GetHandle(string className, bool throwExceptionOnFail)
        {
            if (t_themeHandles == null)
            {
                CreateThemeHandleHashtable();
            }

            if (t_threadCacheVersion != s_globalCacheVersion)
            {
                RefreshCache();
                t_threadCacheVersion = s_globalCacheVersion;
            }

            if (!t_themeHandles !.Contains(className))
            {
                // See if it is already in cache
                ThemeHandle?tHandle = ThemeHandle.Create(className, throwExceptionOnFail);
                if (tHandle == null)
                {
                    return(IntPtr.Zero);
                }

                t_themeHandles.Add(className, tHandle);
                return(tHandle.Handle);
            }

            return(((ThemeHandle)t_themeHandles[className] !).Handle);
        }
        internal unsafe Size GetPartSize(IDeviceContext dc, ThemeSizeType type, IntPtr hWnd)
        {
            if (dc == null)
            {
                throw new ArgumentNullException(nameof(dc));
            }

            // valid values are 0x0 to 0x2
            if (!ClientUtils.IsEnumValid(type, (int)type, (int)ThemeSizeType.Minimum, (int)ThemeSizeType.Draw))
            {
                throw new InvalidEnumArgumentException(nameof(type), (int)type, typeof(ThemeSizeType));
            }

            using var wgr = new WindowsGraphicsWrapper(dc, AllGraphicsProperties);
            var hdc = new HandleRef(wgr, wgr.WindowsGraphics.DeviceContext.Hdc);

            if (DpiHelper.IsPerMonitorV2Awareness && hWnd != IntPtr.Zero)
            {
                using (ThemeHandle hTheme = ThemeHandle.Create(_class, true, hWnd) !)
                {
                    lastHResult = GetThemePartSize(new HandleRef(this, hTheme.Handle), hdc, part, state, null, type, out Size dpiSize);
                    return(dpiSize);
                }
            }

            lastHResult = GetThemePartSize(this, hdc, part, state, null, type, out Size size);
            return(size);
        }
        internal unsafe void DrawBackground(IDeviceContext dc, Rectangle bounds, Rectangle clipRectangle, IntPtr hWnd)
        {
            if (dc == null)
            {
                throw new ArgumentNullException(nameof(dc));
            }
            if (bounds.Width < 0 || bounds.Height < 0)
            {
                return;
            }
            if (clipRectangle.Width < 0 || clipRectangle.Height < 0)
            {
                return;
            }

            using (WindowsGraphicsWrapper wgr = new WindowsGraphicsWrapper(dc, AllGraphicsProperties))
            {
                HandleRef hdc = new HandleRef(wgr, wgr.WindowsGraphics.DeviceContext.Hdc);
                if (IntPtr.Zero != hWnd)
                {
                    using (ThemeHandle hTheme = ThemeHandle.Create(_class, true, hWnd) !)
                    {
                        RECT rect     = bounds;
                        RECT clipRect = clipRectangle;
                        lastHResult = UxTheme.DrawThemeBackground(hTheme, hdc, part, state, ref rect, &clipRect);
                    }
                }
                else
                {
                    RECT rect     = bounds;
                    RECT clipRect = clipRectangle;
                    lastHResult = UxTheme.DrawThemeBackground(this, hdc, part, state, ref rect, &clipRect);
                }
            }
        }
Beispiel #8
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        private static void RefreshCache()
        {
            ThemeHandle handle = null;

            if (themeHandles != null)
            {
                string[] array = new string[themeHandles.Keys.Count];
                themeHandles.Keys.CopyTo(array, 0);
                bool flag = VisualStyleInformation.IsEnabledByUser && ((Application.VisualStyleState == VisualStyleState.ClientAreaEnabled) || (Application.VisualStyleState == VisualStyleState.ClientAndNonClientAreasEnabled));
                foreach (string str in array)
                {
                    handle = (ThemeHandle)themeHandles[str];
                    if (handle != null)
                    {
                        handle.Dispose();
                    }
                    if (flag)
                    {
                        handle = ThemeHandle.Create(str, false);
                        if (handle != null)
                        {
                            themeHandles[str] = handle;
                        }
                    }
                }
            }
        }
Beispiel #9
0
        internal static bool IsCombinationDefined(string className, int part)
        {
            bool returnVal = false;

            if (!IsSupported)
            {
                if (!VisualStyleInformation.IsEnabledByUser)
                {
                    throw new InvalidOperationException(SR.VisualStyleNotActive);
                }
                else
                {
                    throw new InvalidOperationException(SR.VisualStylesDisabledInClientArea);
                }
            }

            if (className == null)
            {
                throw new ArgumentNullException(nameof(className));
            }

            IntPtr hTheme = GetHandle(className, false);

            if (hTheme != IntPtr.Zero)
            {
                // IsThemePartDefined doesn't work for part = 0, although there are valid parts numbered 0. We
                // allow these explicitly here.
                if (part == 0)
                {
                    returnVal = true;
                }
                else
                {
                    returnVal = SafeNativeMethods.IsThemePartDefined(new HandleRef(null, hTheme), part, 0);
                }
            }

            //if the combo isn't defined, check the validity of our theme handle cache
            if (!returnVal)
            {
                using (ThemeHandle tHandle = ThemeHandle.Create(className, false))
                {
                    if (tHandle != null)
                    {
                        returnVal = SafeNativeMethods.IsThemePartDefined(new HandleRef(null, tHandle.NativeHandle), part, 0);
                    }

                    //if we did, in fact get a new correct theme handle, our cache is out of date -- update it now.
                    if (returnVal)
                    {
                        RefreshCache();
                    }
                }
            }

            return(returnVal);
        }
        internal static bool IsCombinationDefined(string className, int part)
        {
            bool result = false;

            if (!IsSupported)
            {
                throw new InvalidOperationException(VisualStyleInformation.IsEnabledByUser
                    ? SR.VisualStylesDisabledInClientArea
                    : SR.VisualStyleNotActive);
            }

            IntPtr hTheme = GetHandle(className, false);

            if (hTheme != IntPtr.Zero)
            {
                // IsThemePartDefined doesn't work for part = 0, although there are valid parts numbered 0. We
                // allow these explicitly here.
                if (part == 0)
                {
                    result = true;
                }
                else
                {
                    result = IsThemePartDefined(hTheme, part, 0).IsTrue();
                }
            }

            // If the combo isn't defined, check the validity of our theme handle cache.
            if (!result)
            {
                using ThemeHandle? handle = ThemeHandle.Create(className, false);

                if (handle is not null)
                {
                    result = IsThemePartDefined(handle, part, 0).IsTrue();
                }

                // If we did, in fact get a new correct theme handle, our cache is out of date -- update it now.
                if (result)
                {
                    RefreshCache();
                }
            }

            return(result);
        }
Beispiel #11
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        private static bool IsCombinationDefined(string className, int part)
        {
            bool flag = false;

            if (!IsSupported)
            {
                if (!VisualStyleInformation.IsEnabledByUser)
                {
                    throw new InvalidOperationException(System.Windows.Forms.SR.GetString("VisualStyleNotActive"));
                }
                throw new InvalidOperationException(System.Windows.Forms.SR.GetString("VisualStylesDisabledInClientArea"));
            }
            if (className == null)
            {
                throw new ArgumentNullException("className");
            }
            IntPtr ptr = GetHandle(className, false);

            if (ptr != IntPtr.Zero)
            {
                if (part == 0)
                {
                    flag = true;
                }
                else
                {
                    flag = System.Windows.Forms.SafeNativeMethods.IsThemePartDefined(new HandleRef(null, ptr), part, 0);
                }
            }
            if (!flag)
            {
                using (ThemeHandle handle = ThemeHandle.Create(className, false))
                {
                    if (handle != null)
                    {
                        flag = System.Windows.Forms.SafeNativeMethods.IsThemePartDefined(new HandleRef(null, handle.NativeHandle), part, 0);
                    }
                    if (flag)
                    {
                        RefreshCache();
                    }
                }
            }
            return(flag);
        }
        internal unsafe Size GetPartSize(Gdi32.HDC dc, ThemeSizeType type, IntPtr hWnd = default)
        {
            // Valid values are 0x0 to 0x2
            if (!ClientUtils.IsEnumValid(type, (int)type, (int)ThemeSizeType.Minimum, (int)ThemeSizeType.Draw))
            {
                throw new InvalidEnumArgumentException(nameof(type), (int)type, typeof(ThemeSizeType));
            }

            if (DpiHelper.IsPerMonitorV2Awareness && hWnd != IntPtr.Zero)
            {
                using ThemeHandle hTheme = ThemeHandle.Create(Class, true, hWnd) !;
                _lastHResult             = GetThemePartSize(hTheme, dc, Part, State, null, type, out Size dpiSize);
                return(dpiSize);
            }

            _lastHResult = GetThemePartSize(this, dc, Part, State, null, type, out Size size);
            return(size);
        }
        internal unsafe void DrawBackground(Gdi32.HDC dc, Rectangle bounds, IntPtr hWnd)
        {
            if (bounds.Width < 0 || bounds.Height < 0)
            {
                return;
            }

            if (IntPtr.Zero != hWnd)
            {
                using ThemeHandle hTheme = ThemeHandle.Create(Class, true, hWnd) !;
                RECT rect = bounds;
                _lastHResult = DrawThemeBackground(hTheme, dc, Part, State, ref rect, null);
            }
            else
            {
                RECT rect = bounds;
                _lastHResult = DrawThemeBackground(this, dc, Part, State, ref rect, null);
            }
        }
		bool DrawBackground (ThemeHandle themeHandle, IDeviceContext dc, int part, int state, Rectangle bounds, Rectangle clipRectangle, Rectangle excludedArea) {
			GtkPlusState gtk_plus_state;
			GtkPlusToggleButtonValue gtk_plus_toggle_button_value;
			switch (themeHandle) {
			#region BUTTON
			case ThemeHandle.BUTTON:
				switch ((BUTTONPARTS)part) {
				#region BP_PUSHBUTTON
				case BUTTONPARTS.BP_PUSHBUTTON:
					switch ((PUSHBUTTONSTATES)state) {
					case PUSHBUTTONSTATES.PBS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case PUSHBUTTONSTATES.PBS_HOT:
						gtk_plus_state = GtkPlusState.Hot;
						break;
					case PUSHBUTTONSTATES.PBS_PRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						break;
					case PUSHBUTTONSTATES.PBS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					case PUSHBUTTONSTATES.PBS_DEFAULTED:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					default:
						return false;
					}
					GtkPlus.ButtonPaint (dc, bounds, clipRectangle, (PUSHBUTTONSTATES)state == PUSHBUTTONSTATES.PBS_DEFAULTED, gtk_plus_state);
					return true;
				#endregion
				#region BP_RADIOBUTTON
				case BUTTONPARTS.BP_RADIOBUTTON:
					switch ((RADIOBUTTONSTATES)state) {
					case RADIOBUTTONSTATES.RBS_UNCHECKEDNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case RADIOBUTTONSTATES.RBS_UNCHECKEDPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case RADIOBUTTONSTATES.RBS_UNCHECKEDHOT:
						gtk_plus_state = GtkPlusState.Hot;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case RADIOBUTTONSTATES.RBS_UNCHECKEDDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case RADIOBUTTONSTATES.RBS_CHECKEDNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case RADIOBUTTONSTATES.RBS_CHECKEDPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case RADIOBUTTONSTATES.RBS_CHECKEDHOT:
						gtk_plus_state = GtkPlusState.Hot;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case RADIOBUTTONSTATES.RBS_CHECKEDDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					default:
						return false;
					}
					GtkPlus.RadioButtonPaint (dc, bounds, clipRectangle, gtk_plus_state, gtk_plus_toggle_button_value);
					return true;
				#endregion
				#region BP_CHECKBOX
				case BUTTONPARTS.BP_CHECKBOX:
					switch ((CHECKBOXSTATES)state) {
					case CHECKBOXSTATES.CBS_UNCHECKEDNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case CHECKBOXSTATES.CBS_UNCHECKEDPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case CHECKBOXSTATES.CBS_UNCHECKEDHOT:
						gtk_plus_state = GtkPlusState.Hot;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case CHECKBOXSTATES.CBS_UNCHECKEDDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Unchecked;
						break;
					case CHECKBOXSTATES.CBS_CHECKEDNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case CHECKBOXSTATES.CBS_CHECKEDPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case CHECKBOXSTATES.CBS_CHECKEDHOT:
						gtk_plus_state = GtkPlusState.Hot;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case CHECKBOXSTATES.CBS_CHECKEDDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Checked;
						break;
					case CHECKBOXSTATES.CBS_MIXEDNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Mixed;
						break;
					case CHECKBOXSTATES.CBS_MIXEDPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Mixed;
						break;
					case CHECKBOXSTATES.CBS_MIXEDHOT:
						gtk_plus_state = GtkPlusState.Hot;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Mixed;
						break;
					case CHECKBOXSTATES.CBS_MIXEDDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						gtk_plus_toggle_button_value = GtkPlusToggleButtonValue.Mixed;
						break;
					default:
						return false;
					}
					GtkPlus.CheckBoxPaint (dc, bounds, clipRectangle, gtk_plus_state, gtk_plus_toggle_button_value);
					return true;
				#endregion
				#region BP_GROUPBOX
				case BUTTONPARTS.BP_GROUPBOX:
					switch ((GROUPBOXSTATES)state) {
					case GROUPBOXSTATES.GBS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case GROUPBOXSTATES.GBS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					default:
						return false;
					}
					GtkPlus.GroupBoxPaint (dc, bounds, excludedArea, gtk_plus_state);
					return true;
				#endregion
				default: return false;
				}
			#endregion
			#region COMBOBOX
#if NET_2_0
			case ThemeHandle.COMBOBOX:
				switch ((COMBOBOXPARTS)part) {
				#region CP_DROPDOWNBUTTON
				case COMBOBOXPARTS.CP_DROPDOWNBUTTON:
					switch ((COMBOBOXSTYLESTATES)state) {
					case COMBOBOXSTYLESTATES.CBXS_NORMAL: gtk_plus_state = GtkPlusState.Normal; break;
					case COMBOBOXSTYLESTATES.CBXS_HOT: gtk_plus_state = GtkPlusState.Hot; break;
					case COMBOBOXSTYLESTATES.CBXS_PRESSED: gtk_plus_state = GtkPlusState.Pressed; break;
					case COMBOBOXSTYLESTATES.CBXS_DISABLED: gtk_plus_state = GtkPlusState.Disabled; break;
					default: return false;
					}
					GtkPlus.ComboBoxPaintDropDownButton (dc, bounds, clipRectangle, gtk_plus_state);
					return true;
				#endregion
				#region CP_BORDER
				case COMBOBOXPARTS.CP_BORDER:
					switch ((BORDERSTATES)state) {
					case BORDERSTATES.CBB_NORMAL:
					case BORDERSTATES.CBB_HOT:
					case BORDERSTATES.CBB_FOCUSED:
					case BORDERSTATES.CBB_DISABLED:
						GtkPlus.ComboBoxPaintBorder (dc, bounds, clipRectangle);
						return true;
					default: return false;
					}
				#endregion
				default: return false;
				}
#endif
			#endregion
			#region EDIT
			case ThemeHandle.EDIT:
				switch ((EDITPARTS)part) {
				#region EP_EDITTEXT
				case EDITPARTS.EP_EDITTEXT:
					switch ((EDITTEXTSTATES)state) {
					case EDITTEXTSTATES.ETS_NORMAL:
					case EDITTEXTSTATES.ETS_ASSIST:
					case EDITTEXTSTATES.ETS_READONLY:
					case EDITTEXTSTATES.ETS_HOT:
					case EDITTEXTSTATES.ETS_SELECTED:
					case EDITTEXTSTATES.ETS_FOCUSED:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case EDITTEXTSTATES.ETS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					default: return false;
					}
					GtkPlus.TextBoxPaint (dc, bounds, excludedArea, gtk_plus_state);
					return true;
				#endregion
				default: return false;
				}
			#endregion
			#region HEADER
			case ThemeHandle.HEADER:
				switch ((HEADERPARTS)part) {
				#region HP_HEADERITEM
				case HEADERPARTS.HP_HEADERITEM:
					switch ((HEADERITEMSTATES)state) {
					case HEADERITEMSTATES.HIS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case HEADERITEMSTATES.HIS_HOT:
						gtk_plus_state = GtkPlusState.Hot;
						break;
					case HEADERITEMSTATES.HIS_PRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						break;
					default: return false;
					}
					GtkPlus.HeaderPaint (dc, bounds, clipRectangle, gtk_plus_state);
					return true;
				#endregion
				default: return false;
				}
			#endregion
			#region PROGRESS
			case ThemeHandle.PROGRESS:
				switch ((PROGRESSPARTS)part) {
				case PROGRESSPARTS.PP_BAR:
				case PROGRESSPARTS.PP_BARVERT:
					GtkPlus.ProgressBarPaintBar (dc, bounds, clipRectangle);
					return true;
				case PROGRESSPARTS.PP_CHUNK:
				case PROGRESSPARTS.PP_CHUNKVERT:
					GtkPlus.ProgressBarPaintChunk (dc, bounds, clipRectangle);
					return true;
				default: return false;
				}
			#endregion
			#region REBAR
			case ThemeHandle.REBAR:
				switch ((REBARPARTS)part) {
				case REBARPARTS.RP_BAND:
					GtkPlus.ToolBarPaint (dc, bounds, clipRectangle);
					return true;
				default: return false;
				}
			#endregion
			#region SCROLLBAR
			case ThemeHandle.SCROLLBAR:
				switch ((SCROLLBARPARTS)part) {
				#region SBP_ARROWBTN
				case SCROLLBARPARTS.SBP_ARROWBTN:
					bool horizontal;
					bool up_or_left;
					switch ((ARROWBTNSTATES)state) {
					case ARROWBTNSTATES.ABS_UPNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						horizontal = false;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_UPHOT:
						gtk_plus_state = GtkPlusState.Hot;
						horizontal = false;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_UPPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						horizontal = false;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_UPDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						horizontal = false;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_DOWNNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						horizontal = false;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_DOWNHOT:
						gtk_plus_state = GtkPlusState.Hot;
						horizontal = false;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_DOWNPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						horizontal = false;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_DOWNDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						horizontal = false;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_LEFTNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						horizontal = true;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_LEFTHOT:
						gtk_plus_state = GtkPlusState.Hot;
						horizontal = true;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_LEFTPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						horizontal = true;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_LEFTDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						horizontal = true;
						up_or_left = true;
						break;
					case ARROWBTNSTATES.ABS_RIGHTNORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						horizontal = true;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_RIGHTHOT:
						gtk_plus_state = GtkPlusState.Hot;
						horizontal = true;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_RIGHTPRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						horizontal = true;
						up_or_left = false;
						break;
					case ARROWBTNSTATES.ABS_RIGHTDISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						horizontal = true;
						up_or_left = false;
						break;
					default: return false;
					}
					GtkPlus.ScrollBarPaintArrowButton (dc, bounds, clipRectangle, gtk_plus_state, horizontal, up_or_left);
					return true;
				#endregion
				#region SBP_THUMBBTNHORZ, SBP_THUMBBTNVERT
				case SCROLLBARPARTS.SBP_THUMBBTNHORZ:
				case SCROLLBARPARTS.SBP_THUMBBTNVERT:
					if (!GetGtkPlusState ((SCROLLBARSTYLESTATES)state, out gtk_plus_state))
						return false;
					GtkPlus.ScrollBarPaintThumbButton (
						dc,
						bounds,
						clipRectangle,
						gtk_plus_state,
						(SCROLLBARPARTS)part == SCROLLBARPARTS.SBP_THUMBBTNHORZ);
					return true;
				#endregion
				#region SBP_LOWERTRACKHORZ, SBP_UPPERTRACKHORZ, SBP_LOWERTRACKVERT, SBP_UPPERTRACKVERT
				case SCROLLBARPARTS.SBP_LOWERTRACKHORZ:
				case SCROLLBARPARTS.SBP_UPPERTRACKHORZ:
				case SCROLLBARPARTS.SBP_LOWERTRACKVERT:
				case SCROLLBARPARTS.SBP_UPPERTRACKVERT:
					if (!GetGtkPlusState ((SCROLLBARSTYLESTATES)state, out gtk_plus_state))
						return false;
					GtkPlus.ScrollBarPaintTrack (
						dc,
						bounds,
						clipRectangle,
						gtk_plus_state,
						(SCROLLBARPARTS)part == SCROLLBARPARTS.SBP_LOWERTRACKHORZ ||
						(SCROLLBARPARTS)part == SCROLLBARPARTS.SBP_UPPERTRACKHORZ,
						(SCROLLBARPARTS)part == SCROLLBARPARTS.SBP_UPPERTRACKHORZ ||
						(SCROLLBARPARTS)part == SCROLLBARPARTS.SBP_UPPERTRACKVERT);
					return true;
				#endregion
				default: return false;
				}
			#endregion
			#region SPIN
			case ThemeHandle.SPIN:
				bool up;
				switch ((SPINPARTS)part) {
				#region SPNP_UP
				case SPINPARTS.SPNP_UP:
					up = true;
					switch ((UPSTATES)state) {
					case UPSTATES.UPS_NORMAL: gtk_plus_state = GtkPlusState.Normal; break;
					case UPSTATES.UPS_HOT: gtk_plus_state = GtkPlusState.Hot; break;
					case UPSTATES.UPS_PRESSED: gtk_plus_state = GtkPlusState.Pressed; break;
					case UPSTATES.UPS_DISABLED: gtk_plus_state = GtkPlusState.Disabled; break;
					default: return false;
					}
					break;
				#endregion
				#region SPNP_DOWN
				case SPINPARTS.SPNP_DOWN:
					up = false;
					switch ((DOWNSTATES)state) {
					case DOWNSTATES.DNS_NORMAL: gtk_plus_state = GtkPlusState.Normal; break;
					case DOWNSTATES.DNS_HOT: gtk_plus_state = GtkPlusState.Hot; break;
					case DOWNSTATES.DNS_PRESSED: gtk_plus_state = GtkPlusState.Pressed; break;
					case DOWNSTATES.DNS_DISABLED: gtk_plus_state = GtkPlusState.Disabled; break;
					default: return false;
					}
					break;
				#endregion
				default: return false;
				}
				GtkPlus.UpDownPaint (dc, bounds, clipRectangle, up, gtk_plus_state);
				return true;
			#endregion
			#region STATUS
			case ThemeHandle.STATUS:
				switch ((STATUSPARTS)part) {
				case STATUSPARTS.SP_GRIPPER:
					GtkPlus.StatusBarPaintGripper (dc, bounds, clipRectangle);
					return true;
				default: return false;
				}
			#endregion
			#region TABCONTROL
			case ThemeHandle.TAB:
				bool selected;
				switch ((TABPARTS)part) {
				#region TABP_TABITEM
				case TABPARTS.TABP_TABITEM:
					switch ((TABITEMSTATES)state) {
					case TABITEMSTATES.TIS_SELECTED:
						selected = true;
						break;
					case TABITEMSTATES.TIS_NORMAL:
					case TABITEMSTATES.TIS_HOT:
					case TABITEMSTATES.TIS_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TABITEMLEFTEDGE
				case TABPARTS.TABP_TABITEMLEFTEDGE:
					switch ((TABITEMLEFTEDGESTATES)state) {
					case TABITEMLEFTEDGESTATES.TILES_SELECTED:
						selected = true;
						break;
					case TABITEMLEFTEDGESTATES.TILES_NORMAL:
					case TABITEMLEFTEDGESTATES.TILES_HOT:
					case TABITEMLEFTEDGESTATES.TILES_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TABITEMRIGHTEDGE
				case TABPARTS.TABP_TABITEMRIGHTEDGE:
					switch ((TABITEMRIGHTEDGESTATES)state) {
					case TABITEMRIGHTEDGESTATES.TIRES_SELECTED:
						selected = true;
						break;
					case TABITEMRIGHTEDGESTATES.TIRES_NORMAL:
					case TABITEMRIGHTEDGESTATES.TIRES_HOT:
					case TABITEMRIGHTEDGESTATES.TIRES_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TABITEMBOTHEDGE
				case TABPARTS.TABP_TABITEMBOTHEDGE:
					selected = false;
					break;
				#endregion
				#region TABP_TOPTABITEM
				case TABPARTS.TABP_TOPTABITEM:
					switch ((TOPTABITEMSTATES)state) {
					case TOPTABITEMSTATES.TTIS_SELECTED:
						selected = true;
						break;
					case TOPTABITEMSTATES.TTIS_NORMAL:
					case TOPTABITEMSTATES.TTIS_HOT:
					case TOPTABITEMSTATES.TTIS_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TOPTABITEMLEFTEDGE
				case TABPARTS.TABP_TOPTABITEMLEFTEDGE:
					switch ((TOPTABITEMLEFTEDGESTATES)state) {
					case TOPTABITEMLEFTEDGESTATES.TTILES_SELECTED:
						selected = true;
						break;
					case TOPTABITEMLEFTEDGESTATES.TTILES_NORMAL:
					case TOPTABITEMLEFTEDGESTATES.TTILES_HOT:
					case TOPTABITEMLEFTEDGESTATES.TTILES_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TOPTABITEMRIGHTEDGE
				case TABPARTS.TABP_TOPTABITEMRIGHTEDGE:
					switch ((TOPTABITEMRIGHTEDGESTATES)state) {
					case TOPTABITEMRIGHTEDGESTATES.TTIRES_SELECTED:
						selected = true;
						break;
					case TOPTABITEMRIGHTEDGESTATES.TTIRES_NORMAL:
					case TOPTABITEMRIGHTEDGESTATES.TTIRES_HOT:
					case TOPTABITEMRIGHTEDGESTATES.TTIRES_DISABLED:
						selected = false;
						break;
					default: return false;
					}
					break;
				#endregion
				#region TABP_TOPTABITEMBOTHEDGE
				case TABPARTS.TABP_TOPTABITEMBOTHEDGE:
					selected = false;
					break;
				#endregion
				#region TABP_PANE
				case TABPARTS.TABP_PANE:
					GtkPlus.TabControlPaintPane (dc, bounds, clipRectangle);
					return true;
				#endregion
				default: return false;
				}
				GtkPlus.TabControlPaintTabItem (dc, bounds, clipRectangle, selected ? GtkPlusState.Pressed : GtkPlusState.Normal);
				return true;
			#endregion
			#region TOOLBAR
			case ThemeHandle.TOOLBAR:
				switch ((TOOLBARPARTS)part) {
				case TOOLBARPARTS.TP_BUTTON:
					switch ((TOOLBARSTYLESTATES)state) {
					case TOOLBARSTYLESTATES.TS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case TOOLBARSTYLESTATES.TS_HOT:
						gtk_plus_state = GtkPlusState.Hot;
						break;
					case TOOLBARSTYLESTATES.TS_PRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						break;
					case TOOLBARSTYLESTATES.TS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					case TOOLBARSTYLESTATES.TS_CHECKED:
					case TOOLBARSTYLESTATES.TS_HOTCHECKED:
						GtkPlus.ToolBarPaintCheckedButton (dc, bounds, clipRectangle);
						return true;
					default: return false;
					}
					GtkPlus.ToolBarPaintButton (dc, bounds, clipRectangle, gtk_plus_state);
					return true;
				default: return false;
				}
			#endregion
			#region TRACKBAR
			case ThemeHandle.TRACKBAR:
				switch ((TRACKBARPARTS)part) {
				#region TKP_TRACK
				case TRACKBARPARTS.TKP_TRACK:
					switch ((TRACKSTATES)state) {
					case TRACKSTATES.TRS_NORMAL:
						GtkPlus.TrackBarPaintTrack (dc, bounds, clipRectangle, true);
						return true;
					default: return false;
					}
				#endregion
				#region TKP_TRACKVERT
				case TRACKBARPARTS.TKP_TRACKVERT:
					switch ((TRACKVERTSTATES)state) {
					case TRACKVERTSTATES.TRVS_NORMAL:
						GtkPlus.TrackBarPaintTrack (dc, bounds, clipRectangle, false);
						return true;
					default: return false;
					}
				#endregion
				#region TKP_THUMB
				case TRACKBARPARTS.TKP_THUMB:
					switch ((THUMBSTATES)state) {
					case THUMBSTATES.TUS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case THUMBSTATES.TUS_HOT:
						gtk_plus_state = GtkPlusState.Hot;
						break;
					case THUMBSTATES.TUS_PRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						break;
					case THUMBSTATES.TUS_FOCUSED:
						gtk_plus_state = GtkPlusState.Selected;
						break;
					case THUMBSTATES.TUS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					default: return false;
					}
					GtkPlus.TrackBarPaintThumb (dc, bounds, clipRectangle, gtk_plus_state, true);
					return true;
				#endregion
				#region TKP_THUMBVERT
				case TRACKBARPARTS.TKP_THUMBVERT:
					switch ((THUMBVERTSTATES)state) {
					case THUMBVERTSTATES.TUVS_NORMAL:
						gtk_plus_state = GtkPlusState.Normal;
						break;
					case THUMBVERTSTATES.TUVS_HOT:
						gtk_plus_state = GtkPlusState.Hot;
						break;
					case THUMBVERTSTATES.TUVS_PRESSED:
						gtk_plus_state = GtkPlusState.Pressed;
						break;
					case THUMBVERTSTATES.TUVS_FOCUSED:
						gtk_plus_state = GtkPlusState.Selected;
						break;
					case THUMBVERTSTATES.TUVS_DISABLED:
						gtk_plus_state = GtkPlusState.Disabled;
						break;
					default: return false;
					}
					GtkPlus.TrackBarPaintThumb (dc, bounds, clipRectangle, gtk_plus_state, false);
					return true;
				#endregion
				default: return false;
				}
			#endregion
			#region TREEVIEW
			case ThemeHandle.TREEVIEW:
				switch ((TREEVIEWPARTS)part) {
				case TREEVIEWPARTS.TVP_GLYPH:
					bool closed;
					switch ((GLYPHSTATES)state) {
					case GLYPHSTATES.GLPS_CLOSED : closed = true; break;
					case GLYPHSTATES.GLPS_OPENED: closed = false; break;
					default: return false;
					}
					GtkPlus.TreeViewPaintGlyph (dc, bounds, clipRectangle, closed);
					return true;
				default: return false;
				}
			#endregion
			default: return false;
			}
		}
		bool GetPartSize (ThemeHandle themeHandle, IDeviceContext dc, int part, int state, Rectangle bounds, bool rectangleSpecified, ThemeSizeType type, out Size result)
		{
			switch (themeHandle) {
			#region BUTTON
			case ThemeHandle.BUTTON:
				switch ((BUTTONPARTS)part) {
				case BUTTONPARTS.BP_RADIOBUTTON:
					result = GtkPlus.RadioButtonGetSize ();
					return true;
				case BUTTONPARTS.BP_CHECKBOX:
					result = GtkPlus.CheckBoxGetSize ();
					return true;
				}
				break;
			#endregion
			#region HEADER
			case ThemeHandle.HEADER:
				switch ((HEADERPARTS)part) {
				case HEADERPARTS.HP_HEADERITEM:
					result = new Size (0, ThemeWin32Classic.ListViewGetHeaderHeight ());
					return true;
				}
				break;
			#endregion
			#region TRACKBAR
			case ThemeHandle.TRACKBAR:
				switch ((TRACKBARPARTS)part) {
				case TRACKBARPARTS.TKP_TRACK:
					result = new Size (0, ThemeWin32Classic.TrackBarHorizontalTrackHeight);
					return true;
				case TRACKBARPARTS.TKP_TRACKVERT:
					result = new Size (ThemeWin32Classic.TrackBarVerticalTrackWidth, 0);
					return true;
				case TRACKBARPARTS.TKP_THUMB:
				case TRACKBARPARTS.TKP_THUMBVERT:
					result = ThemeWin32Classic.TrackBarGetThumbSize ();
					if ((TRACKBARPARTS)part == TRACKBARPARTS.TKP_THUMBVERT) {
						int temporary = result.Width;
						result.Width = result.Height;
						result.Height = temporary;
					}
					return true;
				}
				break;
			#endregion
			}
			result = Size.Empty;
			return false;
		}
		bool GetInteger (ThemeHandle handle, int part, int state, IntegerProperty property, out int result)
		{
			switch (handle) {
			case ThemeHandle.PROGRESS:
				switch ((PROGRESSPARTS)part) {
				case PROGRESSPARTS.PP_CHUNK:
				case PROGRESSPARTS.PP_CHUNKVERT:
					switch (property) {
					case IntegerProperty.ProgressChunkSize:
						result = ThemeWin32Classic.ProgressBarGetChunkSize ();
						return true;
					case IntegerProperty.ProgressSpaceSize:
						result = ThemeWin32Classic.ProgressBarChunkSpacing;
						return true;
					}
					break;
				}
				break;
			}
			result = 0;
			return false;
		}
		bool GetBackgroundContentRectangle (ThemeHandle handle, int part, int state, Rectangle bounds, out Rectangle result)
		{
			switch (handle) {
			case ThemeHandle.PROGRESS:
				switch ((PROGRESSPARTS)part) {
				case PROGRESSPARTS.PP_BAR:
				case PROGRESSPARTS.PP_BARVERT:
					result = GtkPlus.ProgressBarGetBackgroundContentRectagle (bounds);
					return true;
				}
				break;
			}
			result = Rectangle.Empty;
			return false;
		}