private void FullWorkingArea()
{// 1. 健壮地获取当前屏幕var curScreen = Screens.ScreenFromPoint(this.Position) ?? Screens.Primary;if (curScreen == null) return;// 2. 获取当前屏幕的DPI缩放因子double scaling = curScreen.Scaling;// 3. 获取屏幕的工作区（WorkingArea 是物理像素）var workingArea = curScreen.WorkingArea; // 这是一个 PixelRect，单位是物理像素var wp = workingArea.Position; // 物理像素坐标// 4. 关键修正：将窗口的尺寸也转换到物理像素空间进行计算// 假设您期望的窗口逻辑尺寸与工作区相同（减去偏移量）var desiredWindowWidthInLogicalUnits = workingArea.Width / scaling; // 将物理尺寸转换为逻辑尺寸var desiredWindowHeightInLogicalUnits = workingArea.Height / scaling;// 5. 定义逻辑偏移量，并将其转换为物理像素偏移量var desiredLogicalOffset = 10;var physicalOffsetX = (int)Math.Round(desiredLogicalOffset * scaling);var physicalOffsetY = (int)Math.Round(desiredLogicalOffset * scaling);// 6. 应用计算// 窗口位置基于物理像素this.Position = new PixelPoint(wp.X - physicalOffsetX, wp.Y - physicalOffsetY);// 窗口尺寸设置为逻辑尺寸。Avalonia的Width/Height通常是逻辑单位。// 这样设置，再结合缩放因子，就能在物理屏幕上正确渲染。this.Width = desiredWindowWidthInLogicalUnits + (2 * desiredLogicalOffset);this.Height = desiredWindowHeightInLogicalUnits + (2 * desiredLogicalOffset);
}