improve:窗口无焦点

2025-07-20 21:01:15 +08:00
parent 23432465ac
commit ba6303dca0
1 changed files with 13 additions and 0 deletions
@@ -34,6 +34,14 @@ namespace Ink_Canvas {
        private System.Windows.Controls.Canvas currentCanvas = null;
        private AutoUpdateHelper.UpdateLineGroup AvailableLatestLineGroup = null;

+        // Win32 API声明和常量（用于无焦点窗口）
+        [DllImport("user32.dll")]
+        private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
+        [DllImport("user32.dll")]
+        private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
+        private const int GWL_EXSTYLE = -20;
+        private const int WS_EX_NOACTIVATE = 0x08000000;
+
        #region Window Initialization

        public MainWindow() {
@@ -310,6 +318,11 @@ namespace Ink_Canvas {

            // 初始化插件系统
            InitializePluginSystem();
+
+            // 设置窗口为无焦点（不会抢占焦点）
+            var hwnd = new WindowInteropHelper(this).Handle;
+            int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+            SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_NOACTIVATE);
        }

        private void SystemEventsOnDisplaySettingsChanged(object sender, EventArgs e) {