public MouseHook()
{
CurrentMouseArgs = new MouseEventExtArgs();
}
/// <summary>
/// A callback function which will be called every Time a mouse activity detected.
/// </summary>
/// <param name="nCode">
/// [in] Specifies whether the hook procedure must process the message.
/// If nCode is HC_ACTION, the hook procedure must process the message.
/// If nCode is less than zero, the hook procedure must pass the message to the
/// CallNextHookEx function without further processing and must return the
/// value returned by CallNextHookEx.
/// </param>
/// <param name="wParam">
/// [in] Specifies whether the message was sent by the current thread.
/// If the message was sent by the current thread, it is nonzero; otherwise, it is zero.
/// </param>
/// <param name="lParam">
/// [in] Pointer to a CWPSTRUCT structure that contains details about the message.
/// </param>
/// <returns>
/// If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
/// If nCode is greater than or equal to zero, it is highly recommended that you call CallNextHookEx
/// and return the value it returns; otherwise, other applications that have installed WH_CALLWNDPROC
/// hooks will not receive hook notifications and may behave incorrectly as a result. If the hook
/// procedure does not call CallNextHookEx, the return value should be zero.
/// </returns>
private IntPtr MouseHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
//Marshall the data from callback.
var mouseHookStruct =
(WinAPI.MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(WinAPI.MouseLLHookStruct));
var button = MouseButtons.None;
short mouseDelta = 0;
var clickCount = 0;
var upDown = MouseEventExtArgs.UpDown.None;
var mouseUp = false;
//detect button clicked
switch ((WinAPI.WindowMessage)wParam)
{
case WinAPI.WindowMessage.WM_LBUTTONDOWN:
upDown = MouseEventExtArgs.UpDown.Down;
button = MouseButtons.Left;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_LBUTTONUP:
upDown = MouseEventExtArgs.UpDown.Up;
button = MouseButtons.Left;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_LBUTTONDBLCLK:
button = MouseButtons.Left;
clickCount = 2;
break;
case WinAPI.WindowMessage.WM_RBUTTONDOWN:
upDown = MouseEventExtArgs.UpDown.Down;
button = MouseButtons.Right;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_RBUTTONUP:
upDown = MouseEventExtArgs.UpDown.Up;
button = MouseButtons.Right;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_RBUTTONDBLCLK:
button = MouseButtons.Right;
clickCount = 2;
break;
case WinAPI.WindowMessage.WM_MOUSEWHEEL:
//If the message is WM_MOUSEWHEEL, the high-order word of MouseData member is the wheel delta.
//One wheel click is defined as WHEEL_DELTA, which is 120.
//(value >> 16) & 0xffff; retrieves the high-order word from the given 32-bit value
mouseDelta = (short)((mouseHookStruct.MouseData >> 16) & 0xffff);
if (mouseDelta > 0)
{
upDown = MouseEventExtArgs.UpDown.Up;
}
if (mouseDelta < 0)
{
upDown = MouseEventExtArgs.UpDown.Down;
}
//TODO: X BUTTONS (I havent them so was unable to test)
//If the message is WM_XBUTTONDOWN, WM_XBUTTONUP, WM_XBUTTONDBLCLK, WM_NCXBUTTONDOWN, WM_NCXBUTTONUP,
//or WM_NCXBUTTONDBLCLK, the high-order word specifies which X button was pressed or released,
//and the low-order word is reserved. This value can be one or more of the following values.
//Otherwise, MouseData is not used.
break;
}
//generate event
// if (CurrentMouseArgs != null)
//
// UpdateCount += 1;
CurrentMouseArgs = new MouseEventExtArgs(
button,
clickCount,
mouseHookStruct.Point.X,
mouseHookStruct.Point.Y,
mouseDelta)
{
Wheel = mouseDelta != 0, UpOrDown = upDown
};
MouseChanged = true;
// Raise it
OnMouseChangedEvent(this, CurrentMouseArgs);
}
//call next hook
return(WinAPI.CallNextHookEx(hMouseHook, nCode, wParam, lParam));
}
public MouseHook()
{
CurrentMouseArgs = new MouseEventExtArgs();
}
protected virtual void OnMouseChangedEvent(object sender, MouseEventExtArgs e)
{
if (MouseEvent != null)
MouseEvent(sender, e);
}
/// <summary>
/// A callback function which will be called every Time a mouse activity detected.
/// </summary>
/// <param name="nCode">
/// [in] Specifies whether the hook procedure must process the message.
/// If nCode is HC_ACTION, the hook procedure must process the message.
/// If nCode is less than zero, the hook procedure must pass the message to the
/// CallNextHookEx function without further processing and must return the
/// value returned by CallNextHookEx.
/// </param>
/// <param name="wParam">
/// [in] Specifies whether the message was sent by the current thread.
/// If the message was sent by the current thread, it is nonzero; otherwise, it is zero.
/// </param>
/// <param name="lParam">
/// [in] Pointer to a CWPSTRUCT structure that contains details about the message.
/// </param>
/// <returns>
/// If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
/// If nCode is greater than or equal to zero, it is highly recommended that you call CallNextHookEx
/// and return the value it returns; otherwise, other applications that have installed WH_CALLWNDPROC
/// hooks will not receive hook notifications and may behave incorrectly as a result. If the hook
/// procedure does not call CallNextHookEx, the return value should be zero.
/// </returns>
private IntPtr MouseHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
//Marshall the data from callback.
var mouseHookStruct =
(WinAPI.MouseLLHookStruct) Marshal.PtrToStructure(lParam, typeof (WinAPI.MouseLLHookStruct));
var button = MouseButtons.None;
short mouseDelta = 0;
var clickCount = 0;
var upDown = MouseEventExtArgs.UpDown.None;
var mouseUp = false;
//detect button clicked
switch ((WinAPI.WindowMessage) wParam)
{
case WinAPI.WindowMessage.WM_LBUTTONDOWN:
upDown = MouseEventExtArgs.UpDown.Down;
button = MouseButtons.Left;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_LBUTTONUP:
upDown = MouseEventExtArgs.UpDown.Up;
button = MouseButtons.Left;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_LBUTTONDBLCLK:
button = MouseButtons.Left;
clickCount = 2;
break;
case WinAPI.WindowMessage.WM_RBUTTONDOWN:
upDown = MouseEventExtArgs.UpDown.Down;
button = MouseButtons.Right;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_RBUTTONUP:
upDown = MouseEventExtArgs.UpDown.Up;
button = MouseButtons.Right;
clickCount = 1;
break;
case WinAPI.WindowMessage.WM_RBUTTONDBLCLK:
button = MouseButtons.Right;
clickCount = 2;
break;
case WinAPI.WindowMessage.WM_MOUSEWHEEL:
//If the message is WM_MOUSEWHEEL, the high-order word of MouseData member is the wheel delta.
//One wheel click is defined as WHEEL_DELTA, which is 120.
//(value >> 16) & 0xffff; retrieves the high-order word from the given 32-bit value
mouseDelta = (short) ((mouseHookStruct.MouseData >> 16) & 0xffff);
if (mouseDelta > 0)
upDown = MouseEventExtArgs.UpDown.Up;
if (mouseDelta < 0)
upDown = MouseEventExtArgs.UpDown.Down;
//TODO: X BUTTONS (I havent them so was unable to test)
//If the message is WM_XBUTTONDOWN, WM_XBUTTONUP, WM_XBUTTONDBLCLK, WM_NCXBUTTONDOWN, WM_NCXBUTTONUP,
//or WM_NCXBUTTONDBLCLK, the high-order word specifies which X button was pressed or released,
//and the low-order word is reserved. This value can be one or more of the following values.
//Otherwise, MouseData is not used.
break;
}
//generate event
// if (CurrentMouseArgs != null)
//
// UpdateCount += 1;
CurrentMouseArgs = new MouseEventExtArgs(
button,
clickCount,
mouseHookStruct.Point.X,
mouseHookStruct.Point.Y,
mouseDelta) {Wheel = mouseDelta != 0, UpOrDown = upDown};
MouseChanged = true;
// Raise it
OnMouseChangedEvent(this, CurrentMouseArgs);
}
//call next hook
return WinAPI.CallNextHookEx(hMouseHook, nCode, wParam, lParam);
}
