Why does this injection not work?

#include <iostream>
#include <windows.h>
#include <TlHelp32.h>

char* dllPath = "C:\\Users\\Kalist\\Desktop\\Projects\\DLL\\bin\\Debug\\DLL.dll";
char* ProcToInject = "calc.exe";

int main(){
    PROCESSENTRY32 pe32;
    pe32.dwSize = sizeof(PROCESSENTRY32);
    HANDLE procSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    DWORD procID = 0;

    if(procSnap){
        if(Process32First(procSnap, &pe32)){
            do{
               if(!strcmp(pe32.szExeFile, ProcToInject)){
                    procID = pe32.th32ProcessID;
                    break;
               }
            }while(Process32Next(procSnap, &pe32));
        }
        CloseHandle(procSnap);
    }
    HANDLE procAccess = OpenProcess(PROCESS_ALL_ACCESS, false, procID);
    LPVOID memSpace = (LPVOID)VirtualAllocEx(procAccess, NULL, strlen(dllPath)+1, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
    WriteProcessMemory(procAccess, (LPVOID)memSpace, dllPath, strlen(dllPath)+1, NULL);
    LPVOID getLibadd = (LPVOID)GetProcAddress(GetModuleHandle("Kernel32.dll"), "LoadLibraryA");

    CreateRemoteThread(procAccess, NULL, 0, (LPTHREAD_START_ROUTINE)getLibadd, (LPVOID)memSpace, 0, NULL);

    CloseHandle(procAccess);
}

#include <windows.h>

BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
{
    switch(fdwReason)
    {
        case DLL_PROCESS_ATTACH:
            MessageBox(NULL, "Process attached", "Message from Dll", MB_OK);
            break;
        case DLL_THREAD_ATTACH:
            MessageBox(NULL, "Thread attached", "Message from Dll", MB_OK);
            break;
        case DLL_PROCESS_DETACH:
            MessageBox(NULL, "Process detached", "Message from Dll", MB_OK);
            break;
        case DLL_THREAD_DETACH:
            MessageBox(NULL, "Thread detached", "Message from Dll", MB_OK);
            break;
    }
    return true;
}