Can no longer print pdf from Twebbrowser component and can't load to edgebrowser

[Damon 0]

Anyone else seen this behavior?  It is a recent problem.  The print button is clicked but the dialog never appears.  pdf still loads fine, but cannot print unless you save to file first.  Troublesome.

webbrowser1.Navigate('yourfile.pdf');

 

Also, Does anyone have the new TEdgeBrowser working?  I have applied the git package and got the webview2.dll in the output folder with the exe and navigate fails.  I cannot load any page.  Edge version is Version 87.0.664.52 (Official build) (64-bit)

Edited December 3, 2020 by Damon

[Alexander Halser 26]

This does not really help, but I can confirm that TWebBrowser can not (or no longer?) print PDF files.
Clicking the print button that's shown as an overlay does nothing. When invoking the print command manually with

 

WebBrowser1.ControlInterface.ExecWB(OLECMDID_PRINTPREVIEW, OLECMDEXECOPT_DONTPROMPTUSER, vIn, vOut) ;

it raises the error message "Trying to revoke a drop target that has not been registered". Never seen this before.

The missing print function applies to PDF files only. Regular HTML files and websites do work as advertised.

 

[Der schöne Günther 316]

On 12/3/2020 at 5:38 PM, Damon said:

Also, Does anyone have the new TEdgeBrowser working?

For months. It works flawlessly. Keep in mind that you don't get anything from installing Edge on the target computer. You must either install the runtime, ship the needed binaries or install a beta/dev version. Explained here:

https://docs.microsoft.com/en-us/microsoft-edge/webview2/concepts/distribution

[FPiette 382]

35 minutes ago, Der schöne Günther said:

It works flawlessly

But only with the old canary version. See https://blog.marcocantu.com/blog/2020-may-edge-browser-component.html

 

[Damon 0]

2 hours ago, Der schöne Günther said:

For months. It works flawlessly. Keep in mind that you don't get anything from installing Edge on the target computer. You must either install the runtime, ship the needed binaries or install a beta/dev version. Explained here:

https://docs.microsoft.com/en-us/microsoft-edge/webview2/concepts/distribution

Yes, i did try with the binaries, but it did not work.  I will try the stand alone installer, thank you for this.

[Alexander Halser 26]

Quote

Also, Does anyone have the new TEdgeBrowser working?

I struggled with TEdgeBrowser and the updated TWebBrowser that comes with 10.4. TEdgeBrowser did not work at all, like you experienced. TWebBrowser  still just worked in IE11 fallback mode. Latest Windows update and MS Edge/Chromium is installed.

 

What effectively solved the issue for me was to install the WebView2 runtime:

WebView2 - Microsoft Edge Developer

 

After a couple of tests, it seems to me that the runtime is also required on the client computers. It is not sufficient to just deploy WebView2Loader.dll with the application, but the target system requires the WebView2 runtime as well. Which is quite unfortunate, because that needs admin rights to install.

 

I wonder when Microsoft will ship an MS Edge/Chromium with Windows, that comes with the runtime to support an embedded TEdgeBrowser.

Edited December 16, 2020 by Alexander Halser

[Damon 0]

Thank you for the advice Alexander.