Pass commandline arguments to the game process

Closes #4

injector/launcher_payload/src/dll.c

@@ -16,6 +16,9 @@ BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
     // Get the path of the DLL to inject
     char *injectDll = getenv(ENV_DLL_PATH);
 
+    // Get game commandline
+    char *cmdline = getenv(ENV_PROC_CMD);
+
     // Compute the working directory path
     char workdir[MAX_PATH];
     strcpy(workdir, targetExe);
@@ -30,8 +33,8 @@ BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
     ZeroMemory(&pi, sizeof(pi));
 
     if (!CreateProcessA(
-        targetExe,
         NULL,
+        cmdline,
         NULL,
         NULL,
         FALSE,