What is (void*) casting used for?

Question

I did try searching for this on Stack Overflow, but I think due to the syntax and not knowing exactly what to search I became a little unstuck.

I have seen (v

Answer 1

That is mostly used when you want to pass a parameter that can have different states.

For example, in your generic code you would pass the void* as a parameter, and then in the "specific" implementation of that code, you would cast the void* to whatever you want

Generic code, abc.h

void Test(void* pHandle);

Windows code, abc.cpp

void Test(void* phandle)
{
   WindowsStructure* myStruct = (WindowsStructure*)(pHandle);
    myStruct->getWhatINeed;
}

Linux code, abc.cpp

void Test(void* phandle)
{
   LinuxStructure* myStruct = (LinuxStructure*)(pHandle);
    myStruct->getWhatINeed;
}