APIs from QB64PE and parameters defined As Any and unions of types ?

[madscijr]

A "union{}" is a mixed type in C. It is comparable to a *)"struct{}" in C with the difference that all variables share the same memory space; the memory space is determined by the compiler based on the longest variable.
*)A C-struct{} is comparable to Type ... End Type in Basic.
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The "As Any" command in Visual Basic is used to remove the parameter type check when passing parameters. Simply put, it is a hint to the programmer that there is a type difference.

Thanks for explaining... I had some followup questions but I think DSMan195276 answered those...

I'm pretty sure in this context the `ByRef pData As Any` is just their way of expressing the `void *` type in C. That itself more or less just means it's a pointer to data but the type of data is not specified. As far as QB64 is concerned, you'd just replace it with a ByVal _OFFSET.

KernelPanic explained the Union thing, I'd say in practice what you'll need to do in QB64 is use a memory buffer and copy the data into variables of the right kind based on the dwType entry, so a fair amount more annoying (since QB64 doesn't have actual unions to use). I'd probably just use `_MEMNEW()` to create a memory block of the right size and pass that in as `pData`. Then you can use `_MEMGET` to copy the union section into separate variables of the proper TYPE after checking the `dwType` value, and go from there.

Thank you, that's probably what I need. I'll give those a try!

Thanks again to you both, I was feeling dead in the water for a bit!

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Check the code in that "GPT just rewrote my code" thread. The code there handles MEM for any type.

Perfect... Thanks Spriggsy