Mouse event on transparent background

by

I’m not sure why you get the results you get but it should work fine when the background is transparent (i.e. you explicitly set it to Brushes.Transparent, either through XAML or code). If it is null, WPF will not include it in hit testing, and thus it won’t be eligible for mouse events.

See e.g. http://msdn.microsoft.com/en-us/library/ms752097.aspx (A visual object that is transparent can also be hit test.)

Most likely you have another UIElement in your element tree that is capturing and handling the mouse event before your canvas sees it (i.e. by setting e.Handled to true)

More Related Contents:

  1. How do you change Background for a Button MouseOver in WPF?
  2. How to change disabled background color of TextBox in WPF
  3. What is the best way to simulate a Click with MouseUp & MouseDown events or otherwise?
  4. How do you disable MouseOver effects on a Button in WPF?
  5. WPF set border background in trigger
  6. How to detect broken WPF Data binding?
  7. The name does not exist in the namespace error in XAML
  8. How to get a group of toggle buttons to act like radio buttons in WPF?
  9. Get Absolute Position of element within the window in wpf
  10. How to create custom window chrome in wpf?
  11. How to bind inverse boolean properties in WPF?
  12. Inheriting from a UserControl in WPF
  13. Disable DPI awareness for WPF application
  14. Passing parameters between viewmodels
  15. ItemContainerGenerator.ContainerFromItem() returns null?
  16. Convert memory stream to BitmapImage?
  17. What is it about DataTable Column Names with dots that makes them unsuitable for WPF’s DataGrid control?
  18. WPF Binding to local variable
  19. Set the caret/cursor position to the end of the string value WPF textbox
  20. Transparent background on winforms?
  21. WPF: Button single click + double click issue
  22. How to bind xml to the WPF DataGrid correctly?
  23. Binding errors not showing on output window
  24. Difference between Label and TextBlock
  25. How can I sort a ListBox using only XAML and no code-behind?
  26. Combine expander and grid (resizable expander)
  27. Why don’t these animations work when I’m using a storyboard?
  28. What is the difference for TargetType=”{x:Type Button}” and TargetType=”Button”?
  29. Can you define multiple TargetTypes for one XAML style?
  30. Force validation on bound controls in WPF

Leave a Comment