private void OnMoreColorsClick(object sender, RoutedEventArgs e)
{
if (MoreColorsExecuting != null)
{
MoreColorsExecutingEventArgs args = new MoreColorsExecutingEventArgs();
MoreColorsExecuting(this, args);
if (!args.Canceled)
{
Color color = args.Color;
if (RecentColors.Contains(color))
{
RecentColors.Remove(color);
}
RecentColors.Insert(0, color);
recentColorsListBox.SelectedIndex = 0;
}
}
else
{
NativeMethods.CHOOSECOLOR chooseColor = new NativeMethods.CHOOSECOLOR();
Window wnd = Window.GetWindow(this);
if (wnd != null)
{
chooseColor.hwndOwner = new WindowInteropHelper(wnd).Handle;
}
chooseColor.Flags = NativeMethods.CC_ANYCOLOR;
if (customColors == IntPtr.Zero)
{
// Set custom colors)
for (int i = 0; i < colorsArray.Length; i++)
{
colorsArray[i] = 0x00FFFFFF;
}
customColors = GCHandle.Alloc(colorsArray, GCHandleType.Pinned).AddrOfPinnedObject();
}
chooseColor.lpCustColors = customColors;
if (NativeMethods.ChooseColor(chooseColor))
{
Color color = ConvertFromWin32Color(chooseColor.rgbResult);
if (RecentColors.Contains(color))
{
RecentColors.Remove(color);
}
RecentColors.Insert(0, color);
recentColorsListBox.SelectedIndex = 0;
}
}
}
protected override bool RunDialog(IntPtr hwndOwner)
{
NativeMethods.WndProc hookProcPtr = new NativeMethods.WndProc(HookProc);
NativeMethods.CHOOSECOLOR cc = new NativeMethods.CHOOSECOLOR();
IntPtr custColorPtr = Marshal.AllocCoTaskMem(64);
try
{
Marshal.Copy(customColors, 0, custColorPtr, 16);
cc.hwndOwner = hwndOwner;
cc.hInstance = Instance;
cc.rgbResult = ColorTranslator.ToWin32(color);
cc.lpCustColors = custColorPtr;
int flags = Options | (NativeMethods.CC_RGBINIT | NativeMethods.CC_ENABLEHOOK);
// Our docs say AllowFullOpen takes precedence over FullOpen; ChooseColor implements the opposite
if (!AllowFullOpen)
{
flags &= ~NativeMethods.CC_FULLOPEN;
}
cc.Flags = flags;
cc.lpfnHook = hookProcPtr;
if (!SafeNativeMethods.ChooseColor(cc))
{
return(false);
}
if (cc.rgbResult != ColorTranslator.ToWin32(color))
{
color = ColorTranslator.FromOle(cc.rgbResult);
}
Marshal.Copy(custColorPtr, customColors, 0, 16);
return(true);
}
finally
{
Marshal.FreeCoTaskMem(custColorPtr);
}
}
public static extern bool ChooseColor([In, Out] NativeMethods.CHOOSECOLOR cc);
private void OnMoreColorsClick(object sender, RoutedEventArgs e)
{
if (MoreColorsExecuting != null)
{
MoreColorsExecutingEventArgs args = new MoreColorsExecutingEventArgs();
MoreColorsExecuting(this, args);
if (!args.Canceled)
{
Color color = args.Color;
if (RecentColors.Contains(color)) RecentColors.Remove(color);
RecentColors.Insert(0, color);
recentColorsListBox.SelectedIndex = 0;
}
}
else
{
NativeMethods.CHOOSECOLOR chooseColor = new NativeMethods.CHOOSECOLOR();
Window wnd = Window.GetWindow(this);
if (wnd != null) chooseColor.hwndOwner = new WindowInteropHelper(wnd).Handle;
chooseColor.Flags = NativeMethods.CC_ANYCOLOR;
if (customColors == IntPtr.Zero)
{
// Set custom colors)
for (int i = 0; i < colorsArray.Length; i++) colorsArray[i] = 0x00FFFFFF;
customColors = GCHandle.Alloc(colorsArray, GCHandleType.Pinned).AddrOfPinnedObject();
}
chooseColor.lpCustColors = customColors;
if (NativeMethods.ChooseColor(chooseColor))
{
Color color = ConvertFromWin32Color(chooseColor.rgbResult);
if (RecentColors.Contains(color)) RecentColors.Remove(color);
RecentColors.Insert(0, color);
recentColorsListBox.SelectedIndex = 0;
}
}
}
