作为另一种选择,您可以使用
SetWindowsHookEx注册一个低级键盘钩子,并检查是否收到了
Win+
M,然后最小化窗口并让该按键穿过其他窗口。
将以下代码片段添加到您的
Form
中,然后
Win+
M将按预期工作:
private const int WH_KEYBOARD_LL = 13;
[StructLayout(LayoutKind.Sequential)]
private struct KBDLLHOOKSTRUCT
{
public Keys vkCode;
public int scanCode;
public int flags;
public int time;
public IntPtr dwExtraInfo;
}
private delegate IntPtr HookProc(int code, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(
int idHook, HookProc lpfn, IntPtr hmod, uint dwThreadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr CallNextHookEx(
IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr GetModuleHandle(string lpModuleName);
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
private static extern short GetKeyState(int keyCode);
private const int KEY_PRESSED = 0x8000;
private static bool IsKeyDown(Keys key)
{
return Convert.ToBoolean(GetKeyState((int)key) & KEY_PRESSED);
}
private IntPtr ptrHook;
private HookProc hookProc;
private IntPtr CaptureKeys(int code, IntPtr wParam, IntPtr lParam)
{
if (code >= 0)
{
KBDLLHOOKSTRUCT objKeyInfo =
(KBDLLHOOKSTRUCT)Marshal.PtrToStructure(
lParam, typeof(KBDLLHOOKSTRUCT));
if (objKeyInfo.vkCode == (Keys.M) &&
(IsKeyDown(Keys.LWin) || IsKeyDown(Keys.RWin)))
{
this.WindowState = FormWindowState.Minimized;
return (IntPtr)0;
}
}
return CallNextHookEx(ptrHook, code, wParam, lParam);
}
bool HasAltModifier(int flags)
{
return (flags & 0x20) == 0x20;
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
var module = Process.GetCurrentProcess().MainModule;
hookProc = new HookProc(CaptureKeys);
ptrHook = SetWindowsHookEx(
WH_KEYBOARD_LL, hookProc, GetModuleHandle(module.ModuleName), 0);
}