From 3167752f109a654e7454283f130080f0b3f9bb94 Mon Sep 17 00:00:00 2001
From: lx-s <lx-s@users.noreply.github.com>
Date: Wed, 8 Jul 2026 10:40:26 +0200
Subject: [PATCH] use fixed brush to avoid leak

---
 WinMute/WinMute.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/WinMute/WinMute.cpp b/WinMute/WinMute.cpp
index 37b75e2..feb6c6d 100644
--- a/WinMute/WinMute.cpp
+++ b/WinMute/WinMute.cpp
@@ -128,7 +128,8 @@ bool WinMute::RegisterWindowClass()
    WNDCLASSEX wc = { 0 };
    wc.cbSize = sizeof(wc);
    wc.hIcon = LoadIcon(hglobInstance, MAKEINTRESOURCE(IDI_APP));
-   wc.hbrBackground = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
+   // System color index brush: no GDI object to leak, tracks theme changes
+   wc.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_BTNFACE + 1);
    wc.hInstance = hglobInstance;
    wc.lpfnWndProc = WinMuteWndProc;
    wc.lpszClassName = WINMUTE_CLASS_NAME;
@@ -243,12 +244,12 @@ bool WinMute::Init()
 
    hTrayIcon_ = LoadIconW(hglobInstance, MAKEINTRESOURCE(IDI_APP));
    if (hTrayIcon_ == nullptr) {
-      ShowWindowsError(_T("LoadIcon"));
+      ShowWindowsError(L"LoadIcon");
       return false;
    }
    hUpdateIcon_ = LoadIconW(hglobInstance, MAKEINTRESOURCE(IDI_APPUPDATE));
    if (hUpdateIcon_ == nullptr) {
-      ShowWindowsError(_T("LoadIcon"));
+      ShowWindowsError(L"LoadIcon");
       return false;
    }
    wmTray_.Init(hWnd_, 0, hTrayIcon_, L"WinMute", true);
-- 
2.43.0