BriskBard, CEF4Delphi, WebView4Delphi, WebUI4Delphi and WebUI4CSharp

Posted: **Fri Oct 26, 2018 7:57 am**

As far as I know, there are two ways to disable printing :

Overwrite the window.print JavaScript function. Add this code :
Code: Select all
```
TChromium.ExecuteJavascript('window.print=function(){}', 'about:blank', 0);
```
Hook the PrintDlg and PrintDlgEx functions in the Windows API. For more details about this, read this post message :
https://www.briskbard.com/forum/viewtop ... 2373#p2373

Posted: **Sat Oct 27, 2018 7:53 am**

After reading a little more about this kind of problems I would try to use the TChromium.OnLoadStart event and add this code inside that event :

frame.ExecuteJavascript('window.print=function(){}', 'about:blank', 0);

This would override the window.print function in every loaded frame.

Intercepting print dialog