getCompressionOption method
Implementation
int getCompressionOption(Pointer<Int32> compressionOption) =>
(ptr.ref.vtable + 3)
.cast<
Pointer<
NativeFunction<
Int32 Function(
Pointer, Pointer<Int32> compressionOption)>>>()
.value
.asFunction<
int Function(Pointer, Pointer<Int32> compressionOption)>()(
ptr.ref.lpVtbl, compressionOption);