public void Flush()
{
if (previousMouseState.Position != mouseState.Position)
{
MouseMove.RaiseEvent(this, new MouseEventArgs(mouseState.Position));
}
if (IsLeftButtonClicked())
{
MouseDown.RaiseEvent(this, new MouseEventArgs(mouseState.Position));
}
if (IsLeftButtonReleased())
{
MouseUp.RaiseEvent(this, new MouseEventArgs(mouseState.Position));
}
previousMouseState = mouseState;
previousScrollWheelValue = scrollWheelValue;
mouseState = Mouse.GetState();
scrollWheelValue = mouseState.ScrollWheelValue;
}
private static void OnMouseUp(object sender, MouseEventArgs e)
{
MouseUp.RaiseEvent(sender, e);
}
protected override bool ProcessEvent(IntPtr wParam, IntPtr lParam)
{
NativeStructs.MSLLHOOKSTRUCT mouseHookStruct = (NativeStructs.MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(NativeStructs.MSLLHOOKSTRUCT));
MouseButtons button = MouseButtons.None;
short mouseDelta = 0;
NativeEnums.WM message = (NativeEnums.WM)wParam;
switch (message)
{
case NativeEnums.WM.LBUTTONDOWN:
case NativeEnums.WM.LBUTTONUP:
case NativeEnums.WM.LBUTTONDBLCLK:
button = MouseButtons.Left;
break;
case NativeEnums.WM.RBUTTONDOWN:
case NativeEnums.WM.RBUTTONUP:
case NativeEnums.WM.RBUTTONDBLCLK:
button = MouseButtons.Right;
break;
case NativeEnums.WM.MBUTTONDOWN:
case NativeEnums.WM.MBUTTONUP:
case NativeEnums.WM.MBUTTONDBLCLK:
button = MouseButtons.Middle;
break;
case NativeEnums.WM.MOUSEWHEEL:
mouseDelta = (short)((mouseHookStruct.mouseData >> 16) & 0xffff);
break;
default:
break;
}
//double clicks
int clickCount = 0;
if (button != MouseButtons.None)
{
if (message == NativeEnums.WM.LBUTTONDBLCLK || message == NativeEnums.WM.RBUTTONDBLCLK)
{
clickCount = 2;
}
else
{
clickCount = 1;
}
}
//generate event
MouseEventArgs e = new MouseEventArgs(button, clickCount, mouseHookStruct.pt.X, mouseHookStruct.pt.Y, mouseDelta);
switch (message)
{
case NativeEnums.WM.LBUTTONDOWN:
case NativeEnums.WM.RBUTTONDOWN:
case NativeEnums.WM.MBUTTONDOWN:
MouseDown.RaiseEvent(this, e);
break;
case NativeEnums.WM.LBUTTONUP:
case NativeEnums.WM.RBUTTONUP:
case NativeEnums.WM.MBUTTONUP:
MouseUp.RaiseEvent(this, e);
MouseClick.RaiseEvent(this, e);
break;
case NativeEnums.WM.LBUTTONDBLCLK:
case NativeEnums.WM.RBUTTONDBLCLK:
case NativeEnums.WM.MBUTTONDBLCLK:
MouseDoubleClick.RaiseEvent(this, e);
break;
case NativeEnums.WM.MOUSEWHEEL:
MouseWheel.RaiseEvent(this, e);
break;
case NativeEnums.WM.MOUSEMOVE:
MouseMove.RaiseEvent(this, e);
break;
}
return(false);
}