We can test this code by setting the cursor to some text when we drag a Label. PngBitmapEncoder encoder = new PngBitmapEncoder() Į(BitmapFrame.Create(rtb)) Encoding the RenderBitmapTarget into a bitmap (as PNG) RenderTargetBitmap rtb = new RenderTargetBitmap(
The BitmapSource that is rendered with a Visual. The Visual to use as the source of the RenderTargetBitmap.ĭrawingVisual drawingVisual = new DrawingVisual() ĭrawingContext drawingContext = drawingVisual.RenderOpen() ĭrawingContext.DrawText(fmtText, new Point())
New Typeface(new FontFamily("Arial"), FontStyles.Normal, FontWeights.Normal, new FontStretch()), Public static Cursor CreateCursor(string cursorText)įormattedText fmtText = new FormattedText(cursorText, Return CursorInteropHelper.Create(cursorHandle) SafeIconHandle cursorHandle = NativeMethods.CreateIconIndirect(ref iconInfo) NativeMethods.GetIconInfo(bmp.GetHicon(), ref iconInfo) Var iconInfo = new NativeMethods.IconInfo() Private static Cursor InternalCreateCursor( bmp) Return NativeMethods.DestroyIcon(handle) Private class SafeIconHandle : SafeHandleZeroOrMinusOneIsInvalid Public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo) Public static extern bool DestroyIcon(IntPtr hIcon) Public static extern SafeIconHandle CreateIconIndirect(ref IconInfo icon) Here’s a helper class containing a method that converts some text to a cursor. You can set the cursor to be some text by rendering a visual element to a bitmap and then converting that bitmap to a cursor. You can use the GiveFeedback to change the cursor during a drag-and-drop operation. Private void btnClick_StopWaiting(object sender, RoutedEventArgs e) Private void btnClick_Wait(object sender, RoutedEventArgs e) In the example below, when we set the Cursor in the top-level Window, that cursor is used for all elements contained in the window. This Cursor value will also apply to all descendants of the element. When you set the Cursor property on a FrameworkElement, the cursor is displayed whenever you move the mouse pointer over that element. In the example below, the second Button sets its Cursor property to Hand, but this value is overridden because the parent StackPanel sets the ForceCursor property to true.
This overrides any Cursor property values that the child elements might set. This new Cursor value then applies in the element where it is set and any of its own child elements.Ī parent/ancestor FrameworkElement can, however, force all child elements to use a particular cursor, by setting the ForceCursor property to true. A child FrameworkElement can set a Cursor value that overrides the current Cursor value set by a parent (or ancestor) element.
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