ChooseColor() private method

private ChooseColor ( CHOOSECOLOR lpcc ) : bool
lpcc CHOOSECOLOR
return bool
NativeMethods Class Documentation
Esempio n. 1
0
        private void OnMoreColorsClick(object sender, RoutedEventArgs e)
        {
            if (this.MoreColorsExecuting != null)
            {
                var args = new MoreColorsExecutingEventArgs();
                this.MoreColorsExecuting(this, args);
                if (!args.Canceled)
                {
                    var color = args.Color;
                    if (RecentColors.Contains(color))
                    {
                        RecentColors.Remove(color);
                    }

                    RecentColors.Insert(0, color);
                    this.recentColorsListBox.SelectedIndex = 0;
                }
            }
            else
            {
#pragma warning disable 618
                var chooseColor = new NativeMethods.CHOOSECOLOR();
                var wnd         = Window.GetWindow(this);
                if (wnd != null)
                {
                    chooseColor.hwndOwner = new WindowInteropHelper(wnd).Handle;
                }

                chooseColor.Flags = Constants.CC_ANYCOLOR;
                if (customColors == IntPtr.Zero)
                {
                    // Set custom colors)
                    for (var i = 0; i < this.colorsArray.Length; i++)
                    {
                        this.colorsArray[i] = 0x00FFFFFF;
                    }

                    customColors = GCHandle.Alloc(this.colorsArray, GCHandleType.Pinned).AddrOfPinnedObject();
                }

                chooseColor.lpCustColors = customColors;
                if (NativeMethods.ChooseColor(chooseColor))
                {
                    var color = ConvertFromWin32Color(chooseColor.rgbResult);
                    if (RecentColors.Contains(color))
                    {
                        RecentColors.Remove(color);
                    }

                    RecentColors.Insert(0, color);
                    this.recentColorsListBox.SelectedIndex = 0;
                }
#pragma warning restore 618
            }
        }