Windowsformshost mouse

I'm just embarrassed it took me so long to realize I could reproduce the behavior with a simpler project. I zoned out and lost the forest for the trees. I plan to get what I can working in that test project and push it as soon as it does something useful. I assume it's because WPF distinguishes between "logical focus" and "keyboard focus", and the WinForms control is simply never getting any keyboard input, so the mouse events go one way and key events another.

May I ask how exactly you went about testing those methods when you designed them? If I could get that working I feel I'd have a better handle on what I'm doing.

Run without a debugger to click the white square and see the title bar change with the reported info, or run with one and watch the control flow step by step. My custom version of WindowsFormsHostHandler only has changes to MouseDown and KeyDown handling for the moment, since I thought it'd be worth getting some feedback before I tweaked the rest of the methods. As compared to the 2. The changes seem to do the trick, but I'd certainly appreciate a more experienced pair of eyes giving them a once over, if you get a chance.

Just to keep readers abreast of my experiments: after a false start a few days ago, I've made some progress!

AttachEvent after attaching to the WinFormsControl's events. WpfFrameworkElement can then hook up its own internal handlers, which I gather have been hardened against various subtleties of WPF and seem more desirable than anything I could come up with.

I have yet to accommodate all the events currently I'm banging my head against MouseDoubleClick , but what I've got so far gives me hope, at least for my own purposes. Skip to content. Star 2. New issue. Jump to bottom. Milestone Backlog. Copy link. Expected Behavior Mouse events raised by a custom control, in this case based on a WindowsFormsHostHandler handler in WPF, will bubble up to their parent if not explicitly marked handled.

In the ElementHost control, these messages are routed to the hosted element. To accomplish this, the ElementHost control provides an HwndSource instance. Keyboard interoperation relies on implementing the OnNoMoreTabStops method to handle TAB key and arrow key input that moves focus out of hosted elements. Overriding the Select method accomplishes this mapping. To give WPF the first opportunity to process command keys and dialog keys, Windows Forms command preprocessing is connected to the TranslateAccelerator method.

Overriding the Control. ProcessCmdKey method connects the two technologies. If a key message is not handled, it is sent up the Windows Forms ancestor hierarchy for handling.

The Control. Windows Forms does not preprocess this message through the IsInputChar method. If a registered accelerator is found, AccessKeyManager processes it. If the input is an accelerator, the AccessKeyManager processes it. When the user presses the ALT key, accelerator visual cues are shown on the whole form. Messages are sent only to ElementHost controls in the active form. Gets the rendered height of this element.

Inherited from FrameworkElement. Gets the rendered width of this element. Inherited from UIElement. Gets a value that indicates whether at least one touch is captured to this element. Gets a value that indicates whether at least one touch is pressed over this element. Gets or sets the cursor that displays when the mouse pointer is over this element. Gets or sets the data context for an element when it participates in data binding.

Inherited from DependencyObject. Gets the size that this element computed during the measure pass of the layout process. Inherited from DispatcherObject.

Gets the window handle of the hosted window. Inherited from HwndHost. Gets a value indicating whether this element has any animated properties.

Gets or sets the suggested height of the element. Gets the collection of input bindings associated with this element. Gets a value indicating whether this element has keyboard focus. Gets a value that indicates whether this element has been loaded for presentation.

Gets a value indicating whether the current size returned by layout measure is valid. Gets a value that indicates whether this instance is currently sealed read-only. Gets an enumerator for logical child elements of this element. Gets or sets the outer margin of an element. Gets or sets the maximum height constraint of the element. Gets or sets the maximum width constraint of the element. Gets or sets the minimum height constraint of the element.

Gets or sets the minimum width constraint of the element. Specifies the size of the desired padding within the hosted Windows Forms control. Gets the logical parent element of this element. Gets a value that uniquely identifies this element. Gets or sets the final render size of this element. Gets or sets the locally-defined resource dictionary.

Gets or sets the style used by this element when it is rendered. Gets a collection of all stylus plug-in customization objects associated with this element. Gets or sets the tool-tip object that is displayed for this element in the user interface UI. Gets all touch devices that are captured to this element.

Gets all touch devices that are over this element. Gets all touch devices that are over this element or any child elements in its visual tree. Gets the collection of triggers established directly on this element, or in child elements. Gets or sets the user interface UI visibility of this element. Inherited from Visual. Gets the number of visual child elements within this element. Gets or sets the offset value of the visual object. Gets the visual tree parent of the visual object.

Gets or sets the x-coordinate vertical guideline collection. Gets or sets the y-coordinate horizontal guideline collection. Gets or sets the width of the element. AddHandler RoutedEvent, Delegate. AddLogicalChild Object. Adds the provided object to the logical tree of this element. AddVisualChild Visual. Defines the parent-child relationship between two visuals.

Arrange Rect. ArrangeCore Rect. ArrangeOverride Size. Starts an animation for a specified animated property on this element.

Starts the initialization process for this element. BeginStoryboard Storyboard. Begins the sequence of actions that are contained in the provided storyboard. BeginStoryboard Storyboard, HandoffBehavior. Attempts to bring this element into view, within any scrollable regions it is contained within. BringIntoView Rect. BuildWindowCore HandleRef. Attempts to force capture of the mouse to this element. Attempts to force capture of the stylus to this element.

CaptureTouch TouchDevice. Attempts to force capture of a touch to this element. ClearValue DependencyProperty. ClearValue DependencyPropertyKey. CoerceValue DependencyProperty. DestroyWindowCore HandleRef. Immediately frees any system resources that the object might hold. Dispose Boolean. Indicates that the initialization process for the element is complete. Equals Object. Returns the common ancestor of two visual objects. FindName String. Finds an element that has the provided identifier name.

FindResource Object. Attempts to set focus to this element. GetBindingExpression DependencyProperty. GetLayoutClip Size. GetTemplateChild String. Inherited from Object. Returns an alternative logical parent for this element if there is no visual parent. GetValue DependencyProperty. GetVisualChild Int Gets a value that indicates whether the sink or one of its contained components has focus. InputHitTest Point. Invalidates the measurement state layout for the element.

InvalidateProperty DependencyProperty. Re-evaluates the effective value for the specified dependency property. IsAncestorOf DependencyObject. Determines whether the visual object is an ancestor of the descendant visual object. IsDescendantOf DependencyObject. Determines whether the visual object is a descendant of the ancestor visual object.

Measure Size. MeasureCore Size. MeasureOverride Size. MoveFocus TraversalRequest. Provides class handling for when an access key that is meaningful for this element is invoked.

Supports layout behavior when a child element is resized. OnDrop DragEventArgs. OnInitialized EventArgs. Called when one of the mnemonics access keys for this sink is invoked. OnRender DrawingContext. OnStyleChanged Style, Style. Invoked when the style in use on this element changes, which will invalidate the layout.

OnWindowPositionChanged Rect. Called when the hosted window's position changes. PointFromScreen Point. PointToScreen Point. PredictFocus FocusNavigationDirection. RaiseEvent RoutedEventArgs. ReadLocalValue DependencyProperty. Returns the local value of a dependency property, if it exists. RegisterName String, Object. Releases all captured touch devices from this element.

Releases the mouse capture, if this element held the capture. Releases the stylus device capture, if this element held the capture. ReleaseTouchCapture TouchDevice. Attempts to release the specified touch device from this element. RemoveHandler RoutedEvent, Delegate. Removes the specified routed event handler from this element.

RemoveLogicalChild Object. RemoveVisualChild Visual. Removes the parent-child relationship between two visuals. ScaleChild Vector. Scales the hosted Windows Forms control, and tracks the scale factor. Search related threads. Remove From My Forums. Answered by:. Archived Forums. Sign in to vote. What i asked before is how to convert the Forms. MouseEventArgs to Input.