On Sunday, 28 February 2021 at 07:05:27 UTC, Jack wrote:
I'm using a windows callback function where the user-defined value is passed thought a LPARAM argument type. I'd like to pass my D array then access it from that callback function. How is the casting from LPARAM to my type array done in that case?

for example, I need something like this to work:

int[] arr = [1, 2, 3];
long l = cast(long) cast(void*) arr.ptr;
int[] a = cast(int[]) cast(void*) l;

LPARAM is not long on 32 bits, it's int. Use LPARAM instead of long.

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