Update hello_dll.c

Author: horsicq

tests/hello_dll.c

@@ -1,21 +1,29 @@
-//+---------------------------------------------------------------------------
-//
-//  HELLO_DLL.C - Windows DLL example - main application part
-//
+//-----------------------------------------------------------------------------
+//  HELLO_DLL.C - Windows DLL example - Main Application Entry Point
+//-----------------------------------------------------------------------------
 
 #include <windows.h>
-
 #include "../include/obfus.h"
 
+// Function prototype for DLL function
 void hello_func(void);
+
+// Import external constant defined in the DLL
 __declspec(dllimport) extern const char *hello_data;
 
+// Entry point for the Windows application
 int WINAPI WinMain(
     HINSTANCE hInstance,
     HINSTANCE hPrevInstance,
     LPSTR lpCmdLine,
-    int nCmdShow) {
+    int nCmdShow)
+{
+    // Set the shared DLL data to a greeting message
     hello_data = "Hello World!";
+
+    // Call the DLL's function to display or process the message
     hello_func();
+
+    // Exit the application
     return 0;
 }