private static int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
bool handled = false;
if (nCode >= 0)
{
KeyboardHookStruct keyboardHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
if (keyDownHandler != null && (wParam == Win.WM_KEYDOWN || wParam == Win.WM_SYSKEYDOWN))
{
TriggerKeyDownEvent(keyboardHookStruct, ref handled);
}
if (keyUpHandler != null && (wParam == Win.WM_KEYUP || wParam == Win.WM_SYSKEYUP))
{
TriggerKeyUpEvent(keyboardHookStruct, ref handled);
}
}
if (handled)
{
return(-1);
}
else
{
return(Win.CallNextHookEx(keyboardHookHandle, nCode, wParam, lParam));
}
}
private static int MouseHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
MouseLLHookStruct mouseHookStruct = (MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseLLHookStruct));
MouseButtons button = MouseButtons.None;
short mouseDelta = 0;
int clickCount = 0;
bool mouseDown = false;
bool mouseUp = false;
switch (wParam)
{
case Win.WM_LBUTTONDOWN:
mouseDown = true;
button = MouseButtons.Left;
clickCount = 1;
break;
case Win.WM_LBUTTONUP:
mouseUp = true;
button = MouseButtons.Left;
clickCount = 1;
break;
case Win.WM_RBUTTONDOWN:
mouseDown = true;
button = MouseButtons.Right;
clickCount = 1;
break;
case Win.WM_MBUTTONDOWN:
mouseDown = true;
button = MouseButtons.Middle;
clickCount = 1;
break;
case Win.WM_MBUTTONUP:
mouseUp = true;
button = MouseButtons.Middle;
clickCount = 1;
break;
case Win.WM_RBUTTONUP:
mouseUp = true;
button = MouseButtons.Right;
clickCount = 1;
break;
case Win.WM_MOUSEWHEEL:
// High-order word of MouseData is the wheel delta.
mouseDelta = (short)((mouseHookStruct.MouseData >> 16) & 0xffff);
break;
// TODO: Handle WM_XBUTTONDOWN, WM_XBUTTONUP, WM_XBUTTONDBLCLK, WM_NCXBUTTONDOWN, WM_NCXBUTTONUP, & WM_NCXBUTTONDBLCLK.
}
Point mousePos = mouseHookStruct.Point;
MouseEventArgs e = new MouseEventArgs(button, clickCount, mousePos.X, mousePos.Y, mouseDelta);
if (mouseUpHandler != null && mouseUp)
{
mouseUpHandler.Invoke(null, e);
}
if (mouseDownHandler != null && mouseDown)
{
mouseDownHandler.Invoke(null, e);
}
if (mouseWheelHandler != null && mouseDelta != 0)
{
mouseWheelHandler.Invoke(null, e);
}
if (mouseMoveHandler != null && !previousMousePos.Equals(mousePos))
{
previousMousePos = mousePos;
if (mouseMoveHandler != null)
{
mouseMoveHandler.Invoke(null, e);
}
}
}
return(Win.CallNextHookEx(mouseHookHandle, nCode, wParam, lParam));
}