C++ DLL 注入

Question

#include <Windows.h>
HANDLE h = OpenProcess(PROCESS_CREATE_THREAD, FALSE, 34808); //Creating a remote thread 
int main() {
    LPVOID path = "MessageBoxDLL.dll";
    CreateRemoteThread(h, NULL, 0, (LPTHREAD_START_ROUTINE)LoadLibraryA, path, 0, NULL);
}

When I try to run my code it returns the error "cannot convert from const char to lpvoid" Im a bit lost with why its not letting me give it a vaild path or even why it needs to convert my value. I played around a bit more but couldn't find any viable solutions. https://i.stack.imgur.com/Ne0bp.png <---Image of error

Answer 1

Why is it converting to LPVOID? Because you told it to. Let's trim this down and notice the error remains:

int main() {
    void* x = "characters";
}

error C2440: 'initializing': cannot convert from 'const char [11]' to 'void *'

I want to be clear, I'm just answering the question. I make no claims about the rest of the code.

Normally, old style casts are considered poor practice, but for an old style function that's expecting void*, go for it:

#include <Windows.h>
int main() {
    const char *path = "MessageBoxDLL.dll";
    HANDLE h = OpenProcess(PROCESS_CREATE_THREAD, FALSE, 34808); //Creating a remote thread 
    CreateRemoteThread(h, NULL, 0, (LPTHREAD_START_ROUTINE)LoadLibraryA, (LPVOID)path, 0, NULL);
}

Since the function doesn't do any type checking, you're on your own for passing it the right arguments. Documentation and example code should help. Casting to void* makes sense for an OS thread function, since the OS doesn't know what you're going to pass.