Linker Error on deriving from Webbrowser widget

Development Programming & Scripting
1

Hi ,

I am geting linker error when I attempt to create a C++ class deriving from Webbrowser class. I want to add the following function in the newly created class.

 UFUNCTION(BlueprintCallable, Category="Web Browser")
  FString GetURL() const;

FString UCustomWebBrowser::GetURL() const
{
    if ( WebBrowserWidget.IsValid() )
    {
        return WebBrowserWidget->GetUrl();
    }
    
    return "";
}

But this is giving error →

Undefined symbols for architecture x86_64
“SWebBrowser::GetUrl() const”, referenced from:
UCustomWebBrowser::GetURL() const in CustomWebBrowser.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

this is related to the line WebBrowserWidget->GetUrl() , because if I comment the line , I don’t get the error anymore.

2

SWebBrowser is in module ‘WebBrowser’, do you add this depend module in your build.cs file of your project?

3

you are a life saver…thanks a million :smiley:

4

you’re welcome,and you can close this question :slight_smile:

5

Hi, we’re trying to do the same thing, expose the GetURL of SWebBrower in the our CustomWebBrowse widgetr; can you please explain us steps to subclass the WebBrowser Widget to access the current URL? We tried to create a new C++ subclass of WebBrowser from the UE editor, but when we try to complie, VS shows us errors like: "use of undefined type ‘SWebBrowser’ and ‘GetUrl’: is not a member of 'TSharedPtr. Can you please address us in right direction? Thanks.

6

Hello,I’d like to help you,but this question is closed so if you need more information about this link error,please send email with your error image to me :1441842473@qq.com
Usually the link error is because you not add the module ‘WebBrowser’ in your game module’s .build.cs file. You can add this name such as:

PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore"，"WebBrowser" });