private static void OnMouseDown(object sender, MouseEventArgs e)
{
if (e.Button.Equals(m_LastClickedButton))
{
if (GlobalMouseDoubleClick != null)
{
GlobalMouseDoubleClick.Invoke(null, e);
}
}
else
{
m_DoubleClickTimer.Enabled = true;
m_LastClickedButton = e.Button;
}
}
/// <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 int MouseHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
//Marshall the data from callback.
var mouseHookStruct = (MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseLLHookStruct));
//detect button clicked
//MouseHookEventArgs mouseArgs = new MouseHookEventArgs();
short mouseDelta = 0;
var clickCount = 0;
var mouseDown = false;
var mouseUp = false;
switch (wParam)
{
case WM_LBUTTONDOWN:
mouseDown = true;
clickCount = 1;
break;
case WM_LBUTTONUP:
mouseUp = true;
clickCount = 1;
break;
case WM_LBUTTONDBLCLK:
clickCount = 2;
break;
case WM_RBUTTONDOWN:
mouseDown = true;
clickCount = 1;
break;
case WM_RBUTTONUP:
mouseUp = true;
clickCount = 1;
break;
case WM_RBUTTONDBLCLK:
clickCount = 2;
break;
case 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);
//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
var mouseEventArgs =
new GlobalMouseEventHandlerArgs(
new System.Windows.Point(mouseHookStruct.Point.X, mouseHookStruct.Point.Y),
mouseHookStruct.MouseData, mouseHookStruct.Flags, mouseHookStruct.Time,
mouseHookStruct.ExtraInfo);
//Mouse up
if (GlobalMouseUp != null && mouseUp)
{
GlobalMouseUp.Invoke(null, mouseEventArgs);
}
//Mouse down
if (GlobalMouseDown != null && mouseDown)
{
GlobalMouseDown.Invoke(null, mouseEventArgs);
}
//If someone listens to click and a click occured
if (GlobalMouseClick != null && clickCount > 0)
{
GlobalMouseClick.Invoke(null, mouseEventArgs);
}
//If someone listens to double click and a click occured
if (GlobalMouseDoubleClick != null && clickCount == 2)
{
GlobalMouseDoubleClick.Invoke(null, mouseEventArgs);
}
//Wheel was moved
if (GlobalMouseWheel != null && mouseDelta != 0)
{
GlobalMouseWheel.Invoke(null, mouseEventArgs);
}
//If someone listens to move and there was a change in coordinates raise move event
if ((GlobalMouseMove != null) && (_oldMouseX != mouseHookStruct.Point.X || _oldMouseY != mouseHookStruct.Point.Y))
{
_oldMouseX = mouseHookStruct.Point.X;
_oldMouseY = mouseHookStruct.Point.Y;
if (GlobalMouseMove != null)
{
GlobalMouseMove.Invoke(null, mouseEventArgs);
}
}
if (mouseEventArgs.Handled)
{
return(-1);
}
}
//call next hook
return(CallNextHookEx(_windowsMouseHookHandle, nCode, wParam, lParam));
}
