public static bool TrackMouseEvent(NativeMethods.TRACKMOUSEEVENT tme)
{
bool retVal = SafeNativeMethodsPrivate.TrackMouseEvent(tme);
int win32Err = Marshal.GetLastWin32Error(); // Dance around FxCop
if (!retVal && win32Err != 0)
{
throw new System.ComponentModel.Win32Exception(win32Err);
}
return(retVal);
}
private void HookMouseEvent()
{
if (!_trakingMouse)
{
_trakingMouse = true;
if (this._trackMouseEvent == null)
{
this._trackMouseEvent = new NativeMethods.TRACKMOUSEEVENT();
this._trackMouseEvent.dwFlags =
(int)(NativeMethods.TrackMouseEventFalgs.TME_HOVER |
NativeMethods.TrackMouseEventFalgs.TME_LEAVE |
NativeMethods.TrackMouseEventFalgs.TME_NONCLIENT);
this._trackMouseEvent.hwndTrack = this.Handle;
}
if (NativeMethods.TrackMouseEvent(this._trackMouseEvent) == false)
{
// use getlasterror to see whats wrong
Log(MethodInfo.GetCurrentMethod(), "Failed enabling TrackMouseEvent: error {0}",
NativeMethods.GetLastError());
}
}
}
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case NativeMethods.WM_MOUSEWHEEL:
if (_mouseInWindow)
{
int delta = NativeMethods.GetWheelDeltaWParam(wParam.ToInt32());
RaiseHwndMouseWheel(new HwndMouseEventArgs(_mouseState, delta, 0));
}
break;
case NativeMethods.WM_LBUTTONDOWN:
_mouseState.LeftButton = MouseButtonState.Pressed;
RaiseHwndLButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_LBUTTONUP:
_mouseState.LeftButton = MouseButtonState.Released;
RaiseHwndLButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_LBUTTONDBLCLK:
RaiseHwndLButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Left));
break;
case NativeMethods.WM_RBUTTONDOWN:
_mouseState.RightButton = MouseButtonState.Pressed;
RaiseHwndRButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_RBUTTONUP:
_mouseState.RightButton = MouseButtonState.Released;
RaiseHwndRButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_RBUTTONDBLCLK:
RaiseHwndRButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Right));
break;
case NativeMethods.WM_MBUTTONDOWN:
_mouseState.MiddleButton = MouseButtonState.Pressed;
RaiseHwndMButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_MBUTTONUP:
_mouseState.MiddleButton = MouseButtonState.Released;
RaiseHwndMButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_MBUTTONDBLCLK:
RaiseHwndMButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Middle));
break;
case NativeMethods.WM_XBUTTONDOWN:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
_mouseState.X1Button = MouseButtonState.Pressed;
RaiseHwndX1ButtonDown(new HwndMouseEventArgs(_mouseState));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
_mouseState.X2Button = MouseButtonState.Pressed;
RaiseHwndX2ButtonDown(new HwndMouseEventArgs(_mouseState));
}
break;
case NativeMethods.WM_XBUTTONUP:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
_mouseState.X1Button = MouseButtonState.Released;
RaiseHwndX1ButtonUp(new HwndMouseEventArgs(_mouseState));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
_mouseState.X2Button = MouseButtonState.Released;
RaiseHwndX2ButtonUp(new HwndMouseEventArgs(_mouseState));
}
break;
case NativeMethods.WM_XBUTTONDBLCLK:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
RaiseHwndX1ButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.XButton1));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
RaiseHwndX2ButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.XButton2));
}
break;
case NativeMethods.WM_MOUSEMOVE:
// If the application isn't in focus, we don't handle this message
if (!_applicationHasFocus)
{
break;
}
// record the prevous and new position of the mouse
_mouseState.ScreenPosition = PointToScreen(new Point(
NativeMethods.GetXLParam((int)lParam),
NativeMethods.GetYLParam((int)lParam)));
if (!_mouseInWindow)
{
_mouseInWindow = true;
RaiseHwndMouseEnter(new HwndMouseEventArgs(_mouseState));
// Track the previously focused window, and set focus to this window.
_hWndPrev = NativeMethods.GetFocus();
NativeMethods.SetFocus(_hWnd);
// send the track mouse event so that we get the WM_MOUSELEAVE message
var tme = new NativeMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf(typeof(NativeMethods.TRACKMOUSEEVENT)),
dwFlags = NativeMethods.TME_LEAVE,
hWnd = hwnd
};
NativeMethods.TrackMouseEvent(ref tme);
}
if (_mouseState.ScreenPosition != _previousPosition)
{
RaiseHwndMouseMove(new HwndMouseEventArgs(_mouseState));
}
_previousPosition = _mouseState.ScreenPosition;
break;
case NativeMethods.WM_MOUSELEAVE:
// If we have capture, we ignore this message because we're just
// going to reset the cursor position back into the window
if (_isMouseCaptured)
{
break;
}
// Reset the state which releases all buttons and
// marks the mouse as not being in the window.
ResetMouseState();
RaiseHwndMouseLeave(new HwndMouseEventArgs(_mouseState));
NativeMethods.SetFocus(_hWndPrev);
break;
}
return(base.WndProc(hwnd, msg, wParam, lParam, ref handled));
}
private void HookMouseEvent()
{
if (!_trakingMouse)
{
_trakingMouse = true;
if (this._trackMouseEvent == null)
{
this._trackMouseEvent = new NativeMethods.TRACKMOUSEEVENT();
this._trackMouseEvent.dwFlags =
(int)(NativeMethods.TrackMouseEventFalgs.TME_HOVER |
NativeMethods.TrackMouseEventFalgs.TME_LEAVE |
NativeMethods.TrackMouseEventFalgs.TME_NONCLIENT);
this._trackMouseEvent.hwndTrack = this.Handle;
}
if (NativeMethods.TrackMouseEvent(this._trackMouseEvent) == false)
// use getlasterror to see whats wrong
Log(MethodInfo.GetCurrentMethod(), "Failed enabling TrackMouseEvent: error {0}",
NativeMethods.GetLastError());
}
}
public static bool TrackMouseEvent(NativeMethods.TRACKMOUSEEVENT tme)
{
// only on NT - not on 95 - comctl32 has a wrapper for 95 and NT.
return(_TrackMouseEvent(tme));
}
private static extern bool _TrackMouseEvent(NativeMethods.TRACKMOUSEEVENT tme);
public static extern bool TrackMouseEvent(NativeMethods.TRACKMOUSEEVENT tme);
public static bool TrackMouseEvent(NativeMethods.TRACKMOUSEEVENT tme)
{
return(_TrackMouseEvent(tme));
}
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case NativeMethods.WM_MOUSEWHEEL:
if (_mouseInWindow)
{
int delta = NativeMethods.GetWheelDeltaWParam(wParam.ToInt32());
RaiseHwndMouseWheel(new HwndMouseEventArgs(_mouseState, delta, 0));
}
break;
case NativeMethods.WM_LBUTTONDOWN:
_mouseState.LeftButton = MouseButtonState.Pressed;
RaiseHwndLButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_LBUTTONUP:
_mouseState.LeftButton = MouseButtonState.Released;
RaiseHwndLButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_LBUTTONDBLCLK:
RaiseHwndLButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Left));
break;
case NativeMethods.WM_RBUTTONDOWN:
_mouseState.RightButton = MouseButtonState.Pressed;
RaiseHwndRButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_RBUTTONUP:
_mouseState.RightButton = MouseButtonState.Released;
RaiseHwndRButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_RBUTTONDBLCLK:
RaiseHwndRButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Right));
break;
case NativeMethods.WM_MBUTTONDOWN:
_mouseState.MiddleButton = MouseButtonState.Pressed;
RaiseHwndMButtonDown(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_MBUTTONUP:
_mouseState.MiddleButton = MouseButtonState.Released;
RaiseHwndMButtonUp(new HwndMouseEventArgs(_mouseState));
break;
case NativeMethods.WM_MBUTTONDBLCLK:
RaiseHwndMButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.Middle));
break;
case NativeMethods.WM_XBUTTONDOWN:
if (((int) wParam & NativeMethods.MK_XBUTTON1) != 0)
{
_mouseState.X1Button = MouseButtonState.Pressed;
RaiseHwndX1ButtonDown(new HwndMouseEventArgs(_mouseState));
}
else if (((int) wParam & NativeMethods.MK_XBUTTON2) != 0)
{
_mouseState.X2Button = MouseButtonState.Pressed;
RaiseHwndX2ButtonDown(new HwndMouseEventArgs(_mouseState));
}
break;
case NativeMethods.WM_XBUTTONUP:
if (((int) wParam & NativeMethods.MK_XBUTTON1) != 0)
{
_mouseState.X1Button = MouseButtonState.Released;
RaiseHwndX1ButtonUp(new HwndMouseEventArgs(_mouseState));
}
else if (((int) wParam & NativeMethods.MK_XBUTTON2) != 0)
{
_mouseState.X2Button = MouseButtonState.Released;
RaiseHwndX2ButtonUp(new HwndMouseEventArgs(_mouseState));
}
break;
case NativeMethods.WM_XBUTTONDBLCLK:
if (((int) wParam & NativeMethods.MK_XBUTTON1) != 0)
RaiseHwndX1ButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.XButton1));
else if (((int) wParam & NativeMethods.MK_XBUTTON2) != 0)
RaiseHwndX2ButtonDblClick(new HwndMouseEventArgs(_mouseState, MouseButton.XButton2));
break;
case NativeMethods.WM_MOUSEMOVE:
// If the application isn't in focus, we don't handle this message
if (!_applicationHasFocus)
break;
// record the prevous and new position of the mouse
_mouseState.ScreenPosition = PointToScreen(new Point(
NativeMethods.GetXLParam((int) lParam),
NativeMethods.GetYLParam((int) lParam)));
if (!_mouseInWindow)
{
_mouseInWindow = true;
RaiseHwndMouseEnter(new HwndMouseEventArgs(_mouseState));
// Track the previously focused window, and set focus to this window.
_hWndPrev = NativeMethods.GetFocus();
NativeMethods.SetFocus(_hWnd);
// send the track mouse event so that we get the WM_MOUSELEAVE message
var tme = new NativeMethods.TRACKMOUSEEVENT
{
cbSize = Marshal.SizeOf(typeof (NativeMethods.TRACKMOUSEEVENT)),
dwFlags = NativeMethods.TME_LEAVE,
hWnd = hwnd
};
NativeMethods.TrackMouseEvent(ref tme);
}
if (_mouseState.ScreenPosition != _previousPosition)
RaiseHwndMouseMove(new HwndMouseEventArgs(_mouseState));
_previousPosition = _mouseState.ScreenPosition;
break;
case NativeMethods.WM_MOUSELEAVE:
// If we have capture, we ignore this message because we're just
// going to reset the cursor position back into the window
if (_isMouseCaptured)
break;
// Reset the state which releases all buttons and
// marks the mouse as not being in the window.
ResetMouseState();
RaiseHwndMouseLeave(new HwndMouseEventArgs(_mouseState));
NativeMethods.SetFocus(_hWndPrev);
break;
}
return base.WndProc(hwnd, msg, wParam, lParam, ref handled);
}
