I have a problem in my wpf project. I have a webbrowser control. What I want is to know whether anybody has clicked on the webrowser control. I used the mousedown event. But to my surprise it is not firing the event. In the webbrowser control I find that only Navigated and Navigating events are fired. Please let me know how can I get mousedown event? Thanks for your time.
Mouse events are not supported by the WebBrowser control. Please refer to the following (duplicate) question for more information about how you could solve this.
WPF WebBrowser Mouse Events not working as expected
MACMAN, add event handler manually, like this:
public MainWindow()
{
InitializeComponent();
AddHandler(FrameworkElement.MouseDownEvent, new MouseButtonEventHandler(WebBrowser_MouseDown), true);
ps: See this topic: https://social.msdn.microsoft.com/Forums/en-US/61807025-d4c4-41e0-b648-b11183065009/mousedown-event-not-working-wpf?forum=wpf
I got the solution by injecting javascript that adds a html mousedown event to the website. The javascirpt in turn invokes a wpf function that is written into a class using ComVisible[true].
http://sekhartechblog.blogspot.in/2012/04/webbrowser-javascript-communication-in.html
Related
I have a custom control which inherits from Control and I'm trying to trigger MouseLeftButtonDown using Touch on WPF platform.The event MouseLeftButtonDown does not fire while touch the window but its works fine when use mouse device. I have tried the related PreviewMouseLeftButtonDown event also nothing happens while touch the window.
Please suggest me the solution.
Regards,
Jeyasri M
Already in another post
WPF combining MouseDown and TouchDown to same event
Anyway have a look to this, maybe can help...
https://blogs.msdn.microsoft.com/llobo/2009/12/07/wpf-touch-basics/
https://blogs.msdn.microsoft.com/jaimer/2009/11/04/introduction-to-wpf-4-multitouch/
I am using Visual Studio 2012. I have added reference to System.Windows.Forms. But I cannot find Form.Shown event handler in the properties-eventhandler window.
Please help me.
Is there any alternative for the same?
When you are using WPF, you can not use WinForms. Those are not the same. You must use the Events from the Window class in WPF.
I assume you use WPF since the WPF tag is there.
For a WPF window I would use one of the following events:
Activated Occurs when a window becomes the foreground window.
GotFocus Occurs when this element gets logical focus.
Loaded Occurs when the element is laid out, rendered, and ready for interaction.
StateChanged Check if WindowState == WindowState.Normal
The WPF equivalent handlers you are possibly looking for are Loaded() and/or Activated(). You might also look at SizeChanged()
Im working on an app to control some stuff over bluetooth.
Currently I have a form with some buttons. On each button I want to trigger an event when the button is pressed down and fire a different event when the button is released.
Is this possible?
Not sure what the "bluetooth" info should tell me.
But in C# Winforms, yes that is possible. See the MouseDown and MouseUp Events: http://msdn.microsoft.com/en-us/library/system.windows.forms.button_events.aspx
(You may need to combine them with the keyboard events to capture them as well)
I want to give the user the option to use a tutorial, the first time he uses the program. I tried adding it in the Form.Load event, but the forms shows up after the Messageboxes have popped up.
That's why I would like to know, are there any events fired right after loading a form?
If not, is there a way to perform actions right after loading?
You should try the shown event, which fires after the form is shown for the first time.
Load happens before the form is shown.
You could try using the Shown event but that might be a bit early too based on what you are doing but it does occur after the Load.
If you have any controls on the page you could trigger it off the controls GotFocus event. Just make sure to put in checks to only do it once if using the GotFocus method.
MSDN Form.Shown
MSDN Control.GotFocus
MSDN Reference to order of events
System.Windows.Forms.Control.HandleCreated
System.Windows.Forms.Control.BindingContextChanged
System.Windows.Forms.Form.Load
System.Windows.Forms.Control.VisibleChanged
System.Windows.Forms.Form.Activated
System.Windows.Forms.Form.Shown
The Shown event should do this for you.
I have a WebBrowser object in a WPF Page and I'm trying to do something whenever the user interacts with the page. I have intially tried to use the events associated with the WebBrowser object but they don't seem to be firing. Below is a simplified example of what my code is trying to do:
webBrowser.MouseDown += new MouseButtonEventHandler(webBrowser_MouseDown);
with the event handler as:
void webBrowser_MouseDown(object sender, MouseButtonEventArgs e)
{
System.Windows.MessageBox.Show("Pressed");
}
However when I run the page and click inside the WebBrowser no message box is displayed.
Apologies, originally I had mentioned that it was a System.Controls WebBrowser rather than a Forms browser.
Mouse events are not supported by the WebBrowser control, according to the documentation. You need to hook up handlers to the DOM events provided by the document being displayed in the control, using the WebBrowser.Document property. This post has an example of how to do this.
Add the ms html com library
Once the WebBrowser.LoadCompleted event fires try this:
mshtml.HTMLDocumentEvents2_Event doc = ((mshtml.HTMLDocumentEvents2_Event)Browser.Document);
doc.onmouseover += new mshtml.HTMLDocumentEvents2_onmouseoverEventHandler(doc_onmouseover);
or use some other event.
Hope this helps someone.