Your code looks like it will correctly create the element but you cannot return a JS object to native code like that.
You can only return basic types like numbers unless you use some kind of higher level binding system such as embind. See https://emscripten.org/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html for more information on connecting the JS and C++ worlds. On Fri, May 12, 2023 at 4:22 PM Nicholas Ingrassellino <nickwe...@gmail.com> wrote: > > Sorry, I do not see an edit button but I made a mistake. Here is the > correction: > It spits out emscgT �� which I thought was a good sign. Turns out trying > to create two different elements at two different times always says that > when cast to either void* or char* (all over types just give me 0). > On Friday, May 12, 2023 at 6:53:40 PM UTC-4 Nicholas Ingrassellino wrote: > >> Good morning all! Or good afternoon or have a great night. You know, >> wherever you are. >> >> I have the following code: >> void* createElement( const char* type ) { >> return EM_ASM_PTR( { >> return document.createElement( UTF8ToString( $0 ) ); >> }, type ); >> }; >> >> I am calling it like this: >> std::cout << static_cast< char* >( cppquery::html::createElement( "div" ) >> ) << std::endl; >> >> It spits out emscgT �� which I thought was a good sign. Turns out trying >> to create two different elements at two different times always says that >> when cast to anything other than either void* or char*. >> >> What I am trying to do is crate an element (not yet added to the DOM), >> store whatever (a pointer, I guess) to it, and use it later with other >> C++-stored JavaScript element objects. >> >> I could just do all the work on the JavaScript side and JSON.stringyify >> everything but that sounds like way too much. >> > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to emscripten-discuss+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/caeb2610-9aaa-4c30-8d4a-4feaad7a0f0en%40googlegroups.com > <https://groups.google.com/d/msgid/emscripten-discuss/caeb2610-9aaa-4c30-8d4a-4feaad7a0f0en%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/CAL_va2-3TLoJZXSnmpg6TZmk17H5tg%3DKaUHufGxwksMEDQ12wQ%40mail.gmail.com.
