First things first, this problem only happens while working in Citrix XenApp seamless mode (which, in simplest of words means the actual app is running on some citrix host but it is simulated as residing in your own desktop). I will take this up with Citrix Support as well but just wanted to poll the group in case someone faced a problem like this before.
I have a WPF app which uses Winforms NotifyIcon to reside in system tray until mouse clicked. In Citrix seamless mode, as user clicks the icon in system tray, the popup flashes and immediately closes on its own.
The Popup window is a vanilla one created with StaysOpen as FALSE and same works in every other environment.
Any suggestions ? This is what I've noticed so far:
The window stays open if I use StaysOpen as true. But then I don't have a way to close the window manually when it loses focus. LostFocus Event doesn't get fired on popup when user clicks outside.
In citrix seamless mode, the MouseEnter event is captured but MouseLeave is NOT so the approach of closing the window if user mouse is outside the window for X secs is not achievable.
Tried the workaround of starting the popup with Staysopen as FALSE and then reset staysopen after like 2 secs so that the pop sticks. It works but a soon as I set StaysOpen as FALSE once the timer is hit, the pop up closes on its own.
Without all these workarounds, if a user quickly clicks (leftclick) on the window before it disappears, the pop up sticks so I tried few ways to simulate the mouse click on the popup as it opens up but that doesn't cut it either.
Thanks
I can't help you with specific advice for tweaking your app to work around the issue, however there is always the hit it very hard with a hammer approach, i.e. tell consumers of your app to disable seamless for your application:
http://support.citrix.com/article/CTX116357/
Update: I pinged the original seamless dev - he said it sounds like a bug where seamless is not correctly routing all the necessary mouse messages between client and server. He said the best way to diagnose this was to run the Spy++ tool on the XenApp server and on the client, and then compare the messages each side sees to identify what messages are not getting translated. Since it sounds like a genuine bug, your best bet is to raise a support ticket with Citrix support and provide them with a sample app that can repro the bug.
Related
I am needing to use the DotNetBrowserControl inside of another application (I am an add-in in the application). The application is written in WPF and has some WinForms components.
When I try to use the WPFBrowserView in the app I can never get focus to go into the Browser Window at all (even when clicking on a the google search box for example).
When I try to use the WinformsBrowserView inside of a WindowsFormsHost control I am able to get focus into the google search box by clicking on it. However once I click focus out of the browser control (to a WPF textbox for example) I can never get Keyboard focus back into the browser (even when clicking on a textbox in the browser).
It seams I am closest on getting the WInformsBrowserView working. Does anyone have any advice on how to force focus into the browser window? Even if I could programmatically force this to happen it would be a huge help.
We have implemented force focus feature for DotNetBrowser, but it is not yet present in the current version. We plan to add it to the next version of DotNetBrowser. If you need a build with this feature present, please get in touch with us via DotNetBrowser support email, and we will provide you with a preview build.
After enabling accessibility for a flex window object, I fired an object.click which brought up a dialog-box. After closing the dialog box, the application went to hung state. So I found the coordinates of object using getrect , restarted both application and silk, kept accessibility disabled clicked on the mainwindow using the coordinates and the problem did not recur. The problem even when I retrieved the coordinates with accessibility and manually clicked on the icon.
I am even unable to fetch locator hierarchy with accessibility enabled when I try to retrieve for objects that are visible only through enabled accessibility. Nothing is captured (blank recorder hierarchy) and the recording stops working any further. I guess the agent goes into some kind of loop or excepts out. Kindly advise.
This was a product issue and got this fixed - not an issue on SilkTest side
I have a WPF application that hosts a CEF browser using CEFSharp. I've found that if I navigate my application's controls using keyboard tabbing, I can cycle through my controls without problem. Once focus makes it to the ChromiumWebBrowser control, focus shifts to within the current web page, as expected. However, once focus makes it within the web page, I can never get focus back out to my application. Hitting tab at the end of the html document just moves focus back to the top of the page, rather than pushing focus back to my application.
I have tried implementing IFocusHandler, but IFocusHandler.OnSetFocus() gets called right when the application is launched and none of the handler methods ever get called again.
How can I move focus back to the host application when tabbing reaches the end of a document in CEFSharp?
UPDATE:
Since this is a bug in CEF that has yet to be fixed, here are a couple relevant links to check on later to see if any progress has been made.
CEFSharp issue: https://github.com/cefsharp/CefSharp/issues/721
CEF issue: https://bitbucket.org/chromiumembedded/cef/issues/1826/focus-handler-not-called-for-offscreen
Taking it a bit further than hosting WinForms user controls in my WPF application, I am actually hosting Delphi forms, i.e. top level windows. I am doing so through the voodoo in blog post How To Host Top-Level HWNDs In WPF.
Nearly everything works perfectly. I send a COM server, built in Delphi, a menu path string, and it sends back a window handle, which I pass to the host control described in the blog. The Delphi window receives nearly all events (rather, Windows Messages) correctly, without any intervention on my part.
The only problem is the buttons. They receive a click event/message fine, and work, but now the Delphi guys have added new icons to the buttons, and each button has an active icon, a hover icon, and a click icon. They receive none of the messages they should to change these icons. Why do nearly all messages work except these? What can I read and or do to try and correct this?
In MouseOver event, send some user message and catch it.
WPF and Win32 Interoperation
HWNDs inside WPF > Notable Differences in Input behavior
While the mouse is over the HwndHost, your application does not receive WPF mouse events, and the value of the WPF property IsMouseOver will be false.
I have an application that will mainly operate in the background. I want certain system events that it handles to cause the app to steal focus from the foreground app, whatever that is. But UIElement.Focus() seems to only set the focus within the WPF app. That is, if the WPF app already has the focus as a whole, then Focus() sets the focus to the right control. But I need to steal focus from another app and put it on my app. How can I do this?
I do not want a system modal dialog. That is, after the window steals focus, it should be possible for the user to immediately switch to another app without dismissing my app's window.
The app may already been in a restored, minimized, or even "minimize to tray" state when it needs to steal system focus. So assuming that it is minimized and stealing focus while restoring the window is not acceptable.
If you don't mind doing som p/invokes, the SetForegroundWindow function should be able to help you:
http://pinvoke.net/default.aspx/user32/SetForegroundWindow.html