InteropCall

Since: IVPrismaUI1

virtual void InteropCall(
    PrismaView view,
    const char* functionName,
    const char* argument
) noexcept = 0;

Calls a named JavaScript function via the JS Interop API. Lower overhead than Invoke, and the right default for anything called more than once per second, or in a tight loop.

Parameters

• view - Target view handle.
• functionName - Name of a function that must exist on the page's window object.
• argument - A single string argument. Pass JSON if you need to send structured data.

Encoding

Same ANSI -> UTF-8 auto-conversion as Invoke.

Example

// C++
api->InteropCall(view, "onInventoryData", jsonString.c_str());

// JS - mymenu.html
function onInventoryData(json) {
  const items = JSON.parse(json);
  // render items...
}

See also

Invoke - for one-shot calls where you need a return value back in C++.