HB_WebView (a cross-platform Webview library)

[Claudio Soto]

Hi all,

I have developed HB_WebView a Harbour wrapper for Webview library.

Webview library is a tiny cross-platform webview library for C/C++ to build modern cross-platform GUIs.
The goal of the Webview library is to create a common HTML5 UI abstraction layer for the most widely used platforms.
It supports two-way JavaScript bindings (to call JavaScript from C/C++ and to call C/C++ from JavaScript).

Now with HB_Webview you can easily bind HB/HMG functions with Javascript, that is, you can call any HB/HMG function from an HTML page.

The first four demos are written in pure Harbour (cross-platform demos), while demo_hmg.prg is an integration of the previous examples integrated into the HMG environment (Windows platform demo).

For example, bind Harbour functions:

context1 = hb_webview_bind2(w, "callHB",       HB_CALL_FUNC_INDIRECT)  // e.g. call from JS: callHB( "hb_memoread", "text.txt" )
context2 = hb_webview_bind2(w, "callMACRO",    HB_CALL_FUNC_MACRO)     // e.g. call from JS: callMACRO( 'hb_memoread("text.txt")' )

context3 = hb_webview_bind2(w, "hb_memoread",  HB_CALL_FUNC_DIRECT)    // e.g. call from JS: hb_memoread( "text.txt" )
context4 = hb_webview_bind2(w, "hb_alert",     HB_CALL_FUNC_DIRECT)    // e.g. call from JS: hb_alert( "Hello Harbour" )

See documentation in HB_WebView.pdf file.

The source code and demos can be downloaded from:

https://www.hmgforum.com/viewtopic.php?t=7659

I hope it is useful to you!

Best Regards,
Claudio

[KennyOoi]

hi Claudio Soto ,

unable to open page [The board requires you to be registered and logged in to view this forum.],unfortunately i can't register.been email to admin but no response last 3 years.

Best Regards,

kenny ooi

[Takács Gábor]

Hi Claudio,

Cannot log in!

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[Angel Pais]

What's the difference with hbWUI ?

It was published in 2021.

https://github.com/diegofazio/hbwui

Regards

Angel

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[Claudio Soto]

Hi all,

try download from:

https://drive.google.com/open?id=1qvX5UbVrnBvr_WwLOhgLOncgckTZ8xc9&usp=drive_fs

Best Regards,
Claudio

PS: in batch files attachment the compilers (Harbour and mingw64) root path was established as C:\hmg.3.6\

[Claudio Soto]

Hi Angel,
I wasn't familiar with hbwui. I just took a quick look at the hbwui code on GitHub. Maybe they're similar.
Regards,
Claudio

El sábado, 22 de marzo de 2025 a las 12:20:55 UTC-3, Angel Pais escribió:

[Takács Gábor]

Hi,

Thank you  download, and test soon

Thank you!

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[Eric Lendvai]

Hello Claudio and all Harbour Developers.

I also had a repo for the webview binding a while ago, with complete source code.

https://github.com/EricLendvai/Harbour_WebView

And a video "How to make Harbour desktop apps using web technologies"  https://www.youtube.com/watch?v=iDOr9B-9TYk

I did not have it working for Windows, since  I never used cmake on linux or mac.

Thanks for your contribution, maybe this will help me port my own app to other platforms.

In the way the framework I created I show an actual multi window application using Harbour multi-threading.

[Takács Gábor]

[Claudio Soto]

Hi Eric, 

very nice!, thanks for sharing. 

Best regards, 

Claudio

[Claudio Soto]

Hi all,
I've added a new demo.
demo6.prg: You can navigate the directory tree and open files that are in the list of allowed extensions (new instances of HB_WebView are created entirely from Javascript code).

I made minor changes to hb webview.prg to automatically support translation between UTF8 and the ANSI Harbour code page.
See demo6 and documentation (hb_webview_bind2 and hb_webview_translate_ansi_codepage functions).

Download from:
https://drive.google.com/open?id=1gCRK__9fylXj29D28DuAnMJXqbcgej7O&usp=drive_fs

Best regards,
Claudio

PS:
Demos written in pure Harbor (cross-platform demos):

demo1.prg - Web browsing in Harbour
demo2.prg - Binding Harbour functions (calling HB functions from Javascript)
demo3.prg - Inspecting DBF files with Javascript
demo4.prg - Injecting PRG code written entirely in Harbour from JavaScript
demo5.prg - Querying SQLite from Javascript
demo6.prg: You can navigate the directory tree and open files that are in the list of allowed extensions (new instances of HB_WebView are created entirely from Javascript code).

Demos in HMG:
demo hmg.prg - is an integration of the previous examples integrated into the HMG environment (Windows platform demo)

See documentation in HB_WebView.pdf file.