Enable Print Preview

[fa0110]

Append argument "--enable-print-preview" in Before Command Line Procesing.
No effect at end of line.
Is it possible to add it at the beginning of the line?

[fa0110]

I changed the append_argument command to append_switch and it was resolved.

[fa0110]

Print Handler only occurs on Linux? Which event occurs on Windows?

[magreenblatt]

Print Handler only occurs on Linux?

Yes

Which event occurs on Windows?

Event for what purpose?

[fa0110]

To change settings and preferences.
landscape;
display_header_footer;
header_template;
footer_template;
page_ranges.

[magreenblatt]

Use PrintToPdf if you want to configure those settings programmatically. Otherwise, the user can configure them in the Print Preview dialog. You might also be able to configure the Print Preview defaults via the Preferences system, check the Chromium code for that.

[fa0110]

I would like to open Print Preview with the pre-configured settings.
Example:
Copies 2:
Header: No
Footer: No

cef_print_settings_t?
cef_print_settings_create()?

Example WebView2:
https://learn.microsoft.com/en-us/microsoft-edge/webview2/how-to/print?tabs=dotnetcsharp