these doesnt work, i just want to save it

Author: Mrezadwiprasetiawan

CMakeLists.txt

@@ -13,9 +13,13 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_BUILD_TYPE Release)
 set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -funroll-loops -ffast-math")
 
+if(win32)
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake") endif()
+
 # Add subprojects
 add_subdirectory(basic)
 add_subdirectory(number_system)
 add_subdirectory(3D)
 add_subdirectory(image)
 add_subdirectory(discrete)
+add_subdirectory(win32)

win32/CMakeLists.txt

@@ -0,0 +1,8 @@
+add_executable(win32app app.cxx)
+
+# Supaya tidak muncul console (khusus untuk Win32 GUI)
+set_target_properties(win32app PROPERTIES
+  WIN32_EXECUTABLE YES
+)
+
+target_link_libraries(winn32app PRIVATE user32 gdi32 kernel32)

win32/app.cxx

@@ -0,0 +1,39 @@
+#include <windows.h>
+
+LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
+                            LPARAM lParam) {
+  switch (uMsg) {
+  case WM_DESTROY:
+    PostQuitMessage(0);
+    return 0;
+  }
+  return DefWindowProc(hwnd, uMsg, wParam, lParam);
+}
+
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, int nCmdShow) {
+  const char CLASS_NAME[] = "MyWindowClass";
+
+  WNDCLASS wc = {};
+  wc.lpfnWndProc = WindowProc;
+  wc.hInstance = hInstance;
+  wc.lpszClassName = CLASS_NAME;
+
+  RegisterClass(&wc);
+
+  HWND hwnd = CreateWindowEx(0, CLASS_NAME, "Hello, Win32 with CMake!",
+                             WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
+                             800, 600, nullptr, nullptr, hInstance, nullptr);
+
+  if (!hwnd)
+    return 0;
+
+  ShowWindow(hwnd, nCmdShow);
+
+  MSG msg = {};
+  while (GetMessage(&msg, nullptr, 0, 0)) {
+    TranslateMessage(&msg);
+    DispatchMessage(&msg);
+  }
+
+  return 0;
+}