Lazarus
Programming => General => Topic started by: stoffman on December 01, 2022, 05:29:05 pm
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Hi,
On Zoom, Teams and Slack when a user wishes to share and application that was written in Lazarus (just the application, not the entire screen) he sees black screen in the share menu and when doing the actual share the users on the end sees a black screen while the sharing user sees everything as normal.
I believe the cause of that behavior is TApplication which uses a hidden window which Slack/Teams/Zoom are actually trying to share.
Any ideas how to overcome this issue?
Thanks
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Greate security, isn't it! :D
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I noticed the same behavior in Telegram messenger window sharing.
I'll keep an eye on the topic
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Although not always. I don't see any patterns yet
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@stoffman,
could you please share a screen capture about of this issue?
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@stoffman,
could you please share a screen capture about of this issue?
There's just a black screen
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@tr_escape
Next time I'll have a call I'll take a screenshot.
But it is really just a black screen. nothing more nothings less
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Most likely because Lazarus creates a main application window that does nothing but handle messages and other things.
Unless I missed something, that would be it.
There is however the chance that somehow a security blanket is being set on the app because this can be done with other apps where it shows blank/black screens, and I don't remember the API calls for that, but they started I believe sometime in Windows 7 or maybe Vista.
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I'm attaching an image for future reference. I also believe it has todo with the main application window as I said in the original post.
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I'm attaching an image for future reference. I also believe it has todo with the main application window as I said in the original post.
Did you try this solution?
https://support.zoom.us/hc/en-us/articles/202082128-Troubleshooting-black-screen-during-screen-sharing
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Do Delphi generated apps show ?
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I'm attaching an image for future reference. I also believe it has todo with the main application window as I said in the original post.
Did you try this solution?
https://support.zoom.us/hc/en-us/articles/202082128-Troubleshooting-black-screen-during-screen-sharing
The problem is common for any software to share their screen
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They call that security! You wouldn't want your finance app to be viewable, would you?
The security is so good, even you can't see your own apps! :D
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They call that security! You wouldn't want your finance app to be viewable, would you?
The security is so good, even you can't see your own apps! :D
On the one hand, you are right. It's good. On the other hand, it is difficult to save video, provide tech support etc )