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 = wParam.ToInt32();
if (HwndMouseWheel != null)
HwndMouseWheel(this, new HwndMouseEventArgs(mouseState, delta, 0));
}
break;
case NativeMethods.WM_LBUTTONDOWN:
mouseState.LeftButton = MouseButtonState.Pressed;
if (HwndLButtonDown != null)
HwndLButtonDown(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_LBUTTONUP:
mouseState.LeftButton = MouseButtonState.Released;
if (HwndLButtonUp != null)
HwndLButtonUp(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_LBUTTONDBLCLK:
if (HwndLButtonDblClick != null)
HwndLButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Left));
break;
case NativeMethods.WM_RBUTTONDOWN:
mouseState.RightButton = MouseButtonState.Pressed;
if (HwndRButtonDown != null)
HwndRButtonDown(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_RBUTTONUP:
mouseState.RightButton = MouseButtonState.Released;
if (HwndRButtonUp != null)
HwndRButtonUp(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_RBUTTONDBLCLK:
if (HwndRButtonDblClick != null)
HwndRButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Right));
break;
case NativeMethods.WM_MBUTTONDOWN:
mouseState.MiddleButton = MouseButtonState.Pressed;
if (HwndMButtonDown != null)
HwndMButtonDown(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_MBUTTONUP:
mouseState.MiddleButton = MouseButtonState.Released;
if (HwndMButtonUp != null)
HwndMButtonUp(this, new HwndMouseEventArgs(mouseState));
break;
case NativeMethods.WM_MBUTTONDBLCLK:
if (HwndMButtonDblClick != null)
HwndMButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Middle));
break;
case NativeMethods.WM_XBUTTONDOWN:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
mouseState.X1Button = MouseButtonState.Pressed;
if (HwndX1ButtonDown != null)
HwndX1ButtonDown(this, new HwndMouseEventArgs(mouseState));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
mouseState.X2Button = MouseButtonState.Pressed;
if (HwndX2ButtonDown != null)
HwndX2ButtonDown(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_XBUTTONUP:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
mouseState.X1Button = MouseButtonState.Released;
if (HwndX1ButtonUp != null)
HwndX1ButtonUp(this, new HwndMouseEventArgs(mouseState));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
mouseState.X2Button = MouseButtonState.Released;
if (HwndX2ButtonUp != null)
HwndX2ButtonUp(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_XBUTTONDBLCLK:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
if (HwndX1ButtonDblClick != null)
HwndX1ButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.XButton1));
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
if (HwndX2ButtonDblClick != null)
HwndX2ButtonDblClick(this, 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.PreviousPosition = mouseState.Position;
mouseState.Position = new Point(
NativeMethods.GetXLParam((int)lParam),
NativeMethods.GetYLParam((int)lParam));
if (!mouseInWindow)
{
mouseInWindow = true;
// if the mouse is just entering, use the same position for the previous state
// so we don't get weird deltas happening when the move event fires
mouseState.PreviousPosition = mouseState.Position;
if (HwndMouseEnter != null)
HwndMouseEnter(this, new HwndMouseEventArgs(mouseState));
hWndprev = NativeMethods.GetFocus();
NativeMethods.SetFocus(hWnd);
// send the track mouse event so that we get the WM_MOUSELEAVE message
NativeMethods.TRACKMOUSEEVENT tme = new NativeMethods.TRACKMOUSEEVENT();
tme.cbSize = Marshal.SizeOf(typeof(NativeMethods.TRACKMOUSEEVENT));
tme.dwFlags = NativeMethods.TME_LEAVE;
tme.hWnd = hwnd;
NativeMethods.TrackMouseEvent(ref tme);
}
// Only fire the mouse move if the position actually changed
if (mouseState.Position != mouseState.PreviousPosition)
{
if (HwndMouseMove != null)
HwndMouseMove(this, new HwndMouseEventArgs(mouseState));
}
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();
if (HwndMouseLeave != null)
HwndMouseLeave(this, new HwndMouseEventArgs(mouseState));
NativeMethods.SetFocus(hWndprev);
break;
default:
break;
}
return base.WndProc(hwnd, msg, wParam, lParam, ref handled);
}
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
try
{
switch (msg)
{
case NativeMethods.WM_MOUSEWHEEL:
if (mouseInWindow)
{
int delta = NativeMethods.GetWheelDeltaWParam((int)wParam.ToInt64());
if (HwndMouseWheel != null)
{
HwndMouseWheel(this, new HwndMouseEventArgs(mouseState, (int)delta, 0));
}
}
break;
case NativeMethods.WM_LBUTTONDOWN:
mouseState.LeftButton = MouseButtonState.Pressed;
if (HwndLButtonDown != null)
{
HwndLButtonDown(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_LBUTTONUP:
mouseState.LeftButton = MouseButtonState.Released;
if (HwndLButtonUp != null)
{
HwndLButtonUp(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_LBUTTONDBLCLK:
if (HwndLButtonDblClick != null)
{
HwndLButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Left));
}
break;
case NativeMethods.WM_RBUTTONDOWN:
mouseState.RightButton = MouseButtonState.Pressed;
if (HwndRButtonDown != null)
{
HwndRButtonDown(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_RBUTTONUP:
mouseState.RightButton = MouseButtonState.Released;
if (HwndRButtonUp != null)
{
HwndRButtonUp(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_RBUTTONDBLCLK:
if (HwndRButtonDblClick != null)
{
HwndRButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Right));
}
break;
case NativeMethods.WM_MBUTTONDOWN:
mouseState.MiddleButton = MouseButtonState.Pressed;
if (HwndMButtonDown != null)
{
HwndMButtonDown(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_MBUTTONUP:
mouseState.MiddleButton = MouseButtonState.Released;
if (HwndMButtonUp != null)
{
HwndMButtonUp(this, new HwndMouseEventArgs(mouseState));
}
break;
case NativeMethods.WM_MBUTTONDBLCLK:
if (HwndMButtonDblClick != null)
{
HwndMButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.Middle));
}
break;
case NativeMethods.WM_XBUTTONDOWN:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
mouseState.X1Button = MouseButtonState.Pressed;
if (HwndX1ButtonDown != null)
{
HwndX1ButtonDown(this, new HwndMouseEventArgs(mouseState));
}
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
mouseState.X2Button = MouseButtonState.Pressed;
if (HwndX2ButtonDown != null)
{
HwndX2ButtonDown(this, new HwndMouseEventArgs(mouseState));
}
}
break;
case NativeMethods.WM_XBUTTONUP:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
mouseState.X1Button = MouseButtonState.Released;
if (HwndX1ButtonUp != null)
{
HwndX1ButtonUp(this, new HwndMouseEventArgs(mouseState));
}
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
mouseState.X2Button = MouseButtonState.Released;
if (HwndX2ButtonUp != null)
{
HwndX2ButtonUp(this, new HwndMouseEventArgs(mouseState));
}
}
break;
case NativeMethods.WM_XBUTTONDBLCLK:
if (((int)wParam & NativeMethods.MK_XBUTTON1) != 0)
{
if (HwndX1ButtonDblClick != null)
{
HwndX1ButtonDblClick(this, new HwndMouseEventArgs(mouseState, MouseButton.XButton1));
}
}
else if (((int)wParam & NativeMethods.MK_XBUTTON2) != 0)
{
if (HwndX2ButtonDblClick != null)
{
HwndX2ButtonDblClick(this, 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.PreviousPosition = mouseState.Position;
mouseState.Position = new Point(
NativeMethods.GetXLParam((int)lParam),
NativeMethods.GetYLParam((int)lParam));
if (!mouseInWindow)
{
mouseInWindow = true;
// if the mouse is just entering, use the same position for the previous state
// so we don't get weird deltas happening when the move event fires
mouseState.PreviousPosition = mouseState.Position;
if (HwndMouseEnter != null)
{
HwndMouseEnter(this, new HwndMouseEventArgs(mouseState));
}
hWndprev = NativeMethods.GetFocus();
NativeMethods.SetFocus(hWnd);
// send the track mouse event so that we get the WM_MOUSELEAVE message
NativeMethods.TRACKMOUSEEVENT tme = new NativeMethods.TRACKMOUSEEVENT();
tme.cbSize = Marshal.SizeOf(typeof(NativeMethods.TRACKMOUSEEVENT));
tme.dwFlags = NativeMethods.TME_LEAVE;
tme.hWnd = hwnd;
NativeMethods.TrackMouseEvent(ref tme);
}
// Only fire the mouse move if the position actually changed
if (mouseState.Position != mouseState.PreviousPosition)
{
if (HwndMouseMove != null)
{
HwndMouseMove(this, new HwndMouseEventArgs(mouseState));
}
}
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();
if (HwndMouseLeave != null)
{
HwndMouseLeave(this, new HwndMouseEventArgs(mouseState));
}
NativeMethods.SetFocus(hWndprev);
break;
default:
break;
}
}
catch (Exception ex)
{
// log this
ErrorLogging.LogException(ex);
}
return(base.WndProc(hwnd, msg, wParam, lParam, ref handled));
}