/// <summary>
/// 新しいインスタンスを作成する。
/// </summary>
/// ec
/// <param name="message">マウス操作の種類を表すMouseMessage値の一つ。</param>
/// <param name="button"></param>
/// <param name="isDoubleClick"></param>
/// <param name="isDesktop"></param>
/// <param name="state">マウスの状態を表すMouseState構造体。</param>
internal GlobalMouseHookedEventArgs(MouseMessage message, MouseButtons button, bool isDoubleClick,
bool isDesktop, ref MouseState state)
{
Message = message;
this.state = state;
MouseButton = button;
IsDoubleClick = isDoubleClick;
IsDesktop = isDesktop;
}
/// <summary>
/// ダブルクリック判定
/// </summary>
/// <param name="button"></param>
/// <param name="state"></param>
/// <returns></returns>
internal bool IsDoubleClick(MouseButtons button, MouseState state)
{
// perform check
var isDblClk = ((button == _button) && (InDoubleClickTime(state.Time)) && (InDoubleClickBounds(state.Point)));
// update history
_button = button;
_time = state.Time;
_position = state.Point;
// return result
return isDblClk;
}
/// <summary>
/// デスクトップ判定
/// </summary>
/// <param name="state"></param>
/// <returns></returns>
private bool IsDesktop(MouseState state)
{
var point = state.Point;
var hwnd = WindowFromPoint(point.X, point.Y);
var sb = new StringBuilder(65535);
GetWindowText(GetForegroundWindow(), sb, 65535);
var desktopWindowText = sb.ToString().Trim();
return hwnd == GetDesktopWindow()
&& IsHitTestNoIcon(hwnd, point.X, point.Y)
&& (desktopWindowText == "" || desktopWindowText == "Program Manager"); // ホントにデスクトップかどうか（WindowFromPointは間違えたハンドルを返す場合があるので。semi transparent windowだと間違える？デスクトップのウインドウ名は空もしくはProgram Managerであるのでそれで判定）
}
private int CallNextHook(int code, MouseMessage message, ref MouseState state)
{
if (code >= 0)
{
var button = MouseButtons.None;
switch (message)
{
case MouseMessage.LDown:
//case MouseMessage.LUp:
button = MouseButtons.Left;
break;
case MouseMessage.RDown:
//case MouseMessage.RUp:
button = MouseButtons.Right;
break;
case MouseMessage.MDown:
//case MouseMessage.MUp:
button = MouseButtons.Middle;
break;
case MouseMessage.XDown:
//case MouseMessage.XUp:
if (state.XButtonData.IsXButton1) button = MouseButtons.XButton1;
if (state.XButtonData.IsXButton2) button = MouseButtons.XButton2;
break;
default:
button = MouseButtons.None;
break;
}
if ((_captureMouseButtons.Length == 0 || _captureMouseButtons.Contains(_button)) &&
button != MouseButtons.None)
{
var e = new GlobalMouseHookedEventArgs(
message,
button,
IsDoubleClick(button, state),
IsDesktop(state),
ref state);
OnMouseHooked(e);
if (e.Cancel)
return -1;
}
}
return CallNextHookEx(_hook, code, message, ref state);
}
private static extern int CallNextHookEx(IntPtr hook, int code, MouseMessage message, ref MouseState state);