sorry, the struct should contain floats:
typedef struct {
float a,b,c;
}myStruct,*myStructPtr;
Dieter Weidenbrück schrieb am Dienstag, 8. November 2022 um 17:09:47 UTC+1:
> Hi,
>
> I am using this method:
>
> on the JS side allocate a buffer to store things
>
> export class Central {
> constructor(app){
> this.mApp = app;
> this.trainBuf = malloc(2048); //or whatever you need
> }
>
> //a function to fill the buffer
> sendData(a,b,c){
> let i = this.trainBuf >> 2;
> HEAPF32[ i + 0] = a;
> HEAPF32[ i + 1] = b;
> HEAPF32[ i + 2] = c;
> //sendMessage neds to exist on the C side, too
> sendMessage(this.trainBuf); //inform you c code that data has been sent
> }
> };
>
> Then in the c code you accept the event like this:
>
> typedef struct {
> int a,b,c;
> }myStruct,*myStructPtr;
>
> myStruct d;
>
> int sendMessage(void* param){
> myStructPtr p = (myStructPtr)param;
>
> d.a = p->a;
> d.b = p->b;
> d.c = p->c;
> }
>
> ale2...@gmail.com schrieb am Dienstag, 8. November 2022 um 16:16:49 UTC+1:
>
>> Hello,
>> I want define some data struct as message and send from emscripten to
>> javascript and viceversa, because i need to comunicate between opengl
>> canvas (on c++ side) to html gui.
>> What's the best way to do that?
>>
>
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