C# で Windows 7 のタスクバーを非表示にしようとしています。この投稿とこのページを見ましたが、すべての指示に従った後、下部に無地の黒いバーが表示されました. 私はこのようなタスクバークラスになりました:
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
public static class Taskbar
{
[DllImport("user32.dll")]
private static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern bool EnumThreadWindows(int threadId, EnumThreadProc pfnEnum, IntPtr lParam);
[DllImport("user32.dll", SetLastError = true)]
private static extern System.IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);
[DllImport("user32.dll")]
private static extern int ShowWindow(IntPtr hwnd, int nCmdShow);
[DllImport("user32.dll")]
private static extern uint GetWindowThreadProcessId(IntPtr hwnd, out int lpdwProcessId);
private const int SW_HIDE = 0;
private const int SW_SHOW = 5;
private const string VistaStartMenuCaption = "Start";
private static IntPtr vistaStartMenuWnd = IntPtr.Zero;
private delegate bool EnumThreadProc(IntPtr hwnd, IntPtr lParam);
public static void Show()
{
SetVisibility(true);
}
public static void Hide()
{
SetVisibility(false);
}
public static bool Visible
{
set { SetVisibility(value); }
}
private static void SetVisibility(bool show)
{
IntPtr taskBarWnd = FindWindow("Shell_TrayWnd", null);
IntPtr startWnd = FindWindowEx(taskBarWnd, IntPtr.Zero, "Button", "Start");
if (startWnd == IntPtr.Zero)
{
startWnd = FindWindow("Button", null);
if (startWnd == IntPtr.Zero)
{
startWnd = GetVistaStartMenuWnd(taskBarWnd);
}
}
ShowWindow(taskBarWnd, show ? SW_SHOW : SW_HIDE);
ShowWindow(startWnd, show ? SW_SHOW : SW_HIDE);
}
private static IntPtr GetVistaStartMenuWnd(IntPtr taskBarWnd)
{
int procId;
GetWindowThreadProcessId(taskBarWnd, out procId);
Process p = Process.GetProcessById(procId);
if (p != null)
{
foreach (ProcessThread t in p.Threads)
{
EnumThreadWindows(t.Id, MyEnumThreadWindowsProc, IntPtr.Zero);
}
}
return vistaStartMenuWnd;
}
private static bool MyEnumThreadWindowsProc(IntPtr hWnd, IntPtr lParam)
{
StringBuilder buffer = new StringBuilder(256);
if (GetWindowText(hWnd, buffer, buffer.Capacity) > 0)
{
Console.WriteLine(buffer);
if (buffer.ToString() == VistaStartMenuCaption)
{
vistaStartMenuWnd = hWnd;
return false;
}
}
return true;
}
}
問題のスクリーンショットを撮りました:
前もって感謝します。