Complete Windows API fixes - Shell_NotifyIconW, GetMenuItemInfoW, and strdup

Co-authored-by: lijy91 <3889523+lijy91@users.noreply.github.com>

Author: Copilot

src/capi/display_manager_c.cpp

@@ -2,6 +2,12 @@
 #include <iostream>
 #include <vector>
 
+#ifdef _WIN32
+#define STRDUP _strdup
+#else
+#define STRDUP strdup
+#endif
+
 #include "../display.h"
 #include "../display_manager.h"
 
@@ -31,13 +37,13 @@ native_display_t to_native_display(const Display& raw_display) {
   native_display_t display = {};
 
   // Allocate and copy strings
-  display.id = strdup(raw_display.id.c_str());
-  display.name = strdup(raw_display.name.c_str());
+  display.id = STRDUP(raw_display.id.c_str());
+  display.name = STRDUP(raw_display.name.c_str());
   display.manufacturer = raw_display.manufacturer.empty()
                              ? nullptr
-                             : strdup(raw_display.manufacturer.c_str());
+                             : STRDUP(raw_display.manufacturer.c_str());
   display.model =
-      raw_display.model.empty() ? nullptr : strdup(raw_display.model.c_str());
+      raw_display.model.empty() ? nullptr : STRDUP(raw_display.model.c_str());
   display.serial_number = nullptr;  // Not available in the C++ API
 
   // Copy position

src/platform/windows/tray_windows.cpp

@@ -133,19 +133,19 @@ class Tray::Impl {
         // Store tray pointer in window
         SetWindowLongPtr(hwnd_, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(tray_ptr_));
 
-        Shell_NotifyIcon(NIM_ADD, &nid_);
+        Shell_NotifyIconW(NIM_ADD, &nid_);
     }
 
     void RemoveTrayIcon() {
         if (hwnd_) {
-            Shell_NotifyIcon(NIM_DELETE, &nid_);
+            Shell_NotifyIconW(NIM_DELETE, &nid_);
         }
     }
 
     void UpdateIcon() {
         if (hwnd_ && icon_) {
             nid_.hIcon = icon_;
-            Shell_NotifyIcon(NIM_MODIFY, &nid_);
+            Shell_NotifyIconW(NIM_MODIFY, &nid_);
         }
     }
 
@@ -155,7 +155,7 @@ class Tray::Impl {
         std::wstring wtooltip = StringToWideString(tooltip);
         wcsncpy_s(nid_.szTip, sizeof(nid_.szTip) / sizeof(wchar_t), wtooltip.c_str(), _TRUNCATE);
 
-        Shell_NotifyIcon(NIM_MODIFY, &nid_);
+        Shell_NotifyIconW(NIM_MODIFY, &nid_);
     }
 
     HWND hwnd_;

src/platform/windows/window_windows.cpp

@@ -390,10 +390,10 @@ bool Window::IsClosable() const {
     if (pimpl_->hwnd_) {
         HMENU hMenu = GetSystemMenu(pimpl_->hwnd_, FALSE);
         if (hMenu) {
-            MENUITEMINFO mii = {};
-            mii.cbSize = sizeof(MENUITEMINFO);
+            MENUITEMINFOW mii = {};
+            mii.cbSize = sizeof(MENUITEMINFOW);
             mii.fMask = MIIM_STATE;
-            if (GetMenuItemInfo(hMenu, SC_CLOSE, FALSE, &mii)) {
+            if (GetMenuItemInfoW(hMenu, SC_CLOSE, FALSE, &mii)) {
                 return !(mii.fState & MFS_GRAYED);
             }
         }
@@ -448,7 +448,7 @@ void Window::SetTitle(std::string title) {
 
 std::string Window::GetTitle() {
     if (pimpl_->hwnd_) {
-        int length = GetWindowTextLength(pimpl_->hwnd_);
+        int length = GetWindowTextLengthW(pimpl_->hwnd_);
         if (length > 0) {
             std::wstring wtitle(length + 1, L'\0');
             GetWindowTextW(pimpl_->hwnd_, &wtitle[0], length + 1);