c# - 当应用程序通过 Windows API 全屏显示时菜单不合适

Question

我用 C# 开发了一个应用程序，我想以全屏模式显示它。它还应该覆盖任务栏。为此，我使用了 Windows API。您可以在下面找到该类:

public sealed class WinAPI
{
    [DllImport("user32.dll", EntryPoint = "GetSystemMetrics")]
    public static extern int GetSystemMetrics(int which);

    [DllImport("user32.dll")]
    public static extern void
        SetWindowPos(IntPtr hwnd, IntPtr hwndInsertAfter,
                     int X, int Y, int width, int height, uint flags);

    private const int SM_CXSCREEN = 0;
    private const int SM_CYSCREEN = 1;
    private static IntPtr HWND_TOP = IntPtr.Zero;
    private const int SWP_SHOWWINDOW = 64; // 0×0040

    public static int ScreenX
    {
        get { return GetSystemMetrics(SM_CXSCREEN); }
    }

    public static int ScreenY
    {
        get { return GetSystemMetrics(SM_CYSCREEN); }
    }

    public static void SetWinFullScreen(IntPtr hwnd)
    {
        SetWindowPos(hwnd, HWND_TOP, 0, 0, ScreenX, ScreenY, SWP_SHOWWINDOW);
    }
}

我将此类与以下表单设置结合使用以进入全屏模式:

private void terminalModeToolStripMenuItem_Click(object sender, EventArgs e)
{
    // Remove the border.
    this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
    this.WindowState = FormWindowState.Maximized;
    this.Bounds = Screen.PrimaryScreen.Bounds;

    // Full screen windows API hack.
    WinAPI.SetWinFullScreen(this.Handle);
}

有趣的部分来了。如果我单击菜单栏中的按钮，按钮和菜单之间会出现间隙，如下图所示:

有谁知道如何解决这个问题？我希望它像这样显示:

为什么会发生这种情况？

Answer 1

正如 Muraad 在 his comment 中指出的那样，尝试将以下代码块移动到您的表单加载事件中:

// Remove the border.
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.WindowState = FormWindowState.Maximized;
this.Bounds = Screen.PrimaryScreen.Bounds;

然后查看问题是否仍然存在。