Sign-in of WASM

Discussion Hub Tools & Utilities
1

I have for some time been looking for a way to restart my WASM dynamically with the MSFS running.

Now I have to reload MSFS every time I change my WASM code during development testing.

In the official WASM documentation it is stated:

In both cases the game will look for and execute the following module functions if they exist:

  • extern "C" MSFS_CALLBACK void module_init(void): upon loading or after sign-in.
  • extern "C" MSFS_CALLBACK void module_deinit(void): upon closing the game or after sign-out.

How to you make a sign-in sign-out as stated?

2

What I do to quickly test my WASM gauge is to modify an aircraft’s panel.cfg (like the stock C172 G1000) to load the gauge in. Every time I replace the WASM file with new changes, I go to the aircraft selector and reload the aircraft from there which rebuilds and initializes the module. The module_init will be called when the aircraft loads the gauge in.

Example panel.cfg entry:

[Vcockpit04]
size_mm=0,0
pixel_size=0,0
texture=$SCREEN_3

htmlgauge00=WasmInstrument/WasmInstrument.html?wasm_module=VFS/Path/To/Module/MyWasmModule.wasm&wasm_gauge=Test, 0,0,0,0
3

Hi,

you can simply recompile your wasm, attach your debugger to MSFS, if you need to, and rebuild the package within MSFS. This will cause MSFS to decompile your wasm into a .dll and reload it into memory.

Greets,
Ben

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