private static IntPtr HookProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
IntPtr returnCode = KeyboardInput.CallWindowProc(KeyboardInput.prevWndProc, hWnd, msg, wParam, lParam);;
switch (msg)
{
case WM_GETDLGCODE:
returnCode = (IntPtr)DLGC_WANTALLKEYS;
break;
case WM_CHAR:
CharEntered?.Invoke(null, new CharacterEventArgs((char)wParam, (int)lParam));
break;
case WM_KEYDOWN:
KeyDown?.Invoke(null, new KeyEventArgs((Keys)wParam));
break;
case WM_KEYUP:
KeyUp?.Invoke(null, new KeyEventArgs((Keys)wParam));
break;
case WM_LBUTTONDOWN:
MouseSelection.left = (int)lParam & 0xffff;
MouseSelection.top = (int)lParam >> 16;
MouseSelection.right = MouseSelection.left;
MouseSelection.bottom = MouseSelection.top;
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
Acp acp = textBox.GetAcpByRange(MouseSelection);
if (acp.Start >= 0)
{
textBox.SetSelection(acp.Start, acp.End);
Console.WriteLine("ACPStart:{0},ACPEnd:{1}", acp.Start, acp.End);
Console.WriteLine("MouseDown:Left:{0},TOP:{1}RIGHT:{2}BOTTOM:{3}", MouseSelection.left, MouseSelection.top, MouseSelection.right, MouseSelection.bottom);
Selecting = true;
}
}
break;
case WM_MOUSEMOVE:
MouseSelection.right = (int)lParam & 0xffff;
MouseSelection.bottom = (int)lParam >> 16;
if (Selecting && Game1.keyboardDispatcher.Subscriber is ITextBox)
{
RECT range = new RECT();
range.left = Math.Min(MouseSelection.left, MouseSelection.right);
range.top = Math.Max(MouseSelection.top, MouseSelection.bottom);
range.right = Math.Max(MouseSelection.left, MouseSelection.right);
range.bottom = Math.Min(MouseSelection.top, MouseSelection.bottom);
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
Acp acp = textBox.GetAcpByRange(range);
if (acp.Start >= 0)
{
textBox.SetSelection(acp.Start, acp.End);
textBox.SetSelState(MouseSelection.left > MouseSelection.right ? SelState.SEL_AE_END : SelState.SEL_AE_START);
Console.WriteLine("ACPStart:{0},ACPEnd:{1}", acp.Start, acp.End);
Console.WriteLine("MouseMove:Left:{0},TOP:{1}RIGHT:{2}BOTTOM:{3}", MouseSelection.left, MouseSelection.top, MouseSelection.right, MouseSelection.bottom);
}
}
//handle IsMouseVisable
returnCode = KeyboardInput.CallWindowProc(KeyboardInput.prevWndProc, hWnd, msg, wParam, lParam);
break;
case WM_LBUTTONUP:
Selecting = false;
break;
#if TSF
case EM_GETSEL:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
Acp acp = textBox.GetSelection();
Marshal.WriteInt32(wParam, acp.Start);
Marshal.WriteInt32(lParam, acp.End);
}
break;
case EM_SETSEL:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
textBox.SetSelection((int)wParam, (int)lParam);
}
break;
case EM_REPLACESEL:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
textBox.ReplaceSelection(Marshal.PtrToStringAuto(lParam));
}
break;
case TF_GETSELSTATE:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
returnCode = (IntPtr)textBox.GetSelState();
}
break;
case TF_GETTEXT:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
var text = textBox.GetText();
Marshal.Copy(text.ToCharArray(), 0, wParam, Math.Min(text.Length, (int)lParam));
}
break;
case TF_GETTEXTLENGTH:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
returnCode = (IntPtr)textBox.GetTextLength();
}
break;
case TF_GETTEXTEXT:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
Acp acp = (Acp)Marshal.PtrToStructure(lParam, typeof(Acp));
RECT rect = textBox.GetTextExt(acp);
MapWindowPoints(Game1.game1.Window.Handle, (IntPtr)0, ref rect, 2); //to screen coord
Marshal.StructureToPtr(rect, wParam, false); //text ext
returnCode = (IntPtr)0; //if the rect clipped
}
break;
case TF_QUERYINSERT:
if (Game1.keyboardDispatcher.Subscriber is ITextBox)
{
ITextBox textBox = Game1.keyboardDispatcher.Subscriber as ITextBox;
Acp acp = (Acp)Marshal.PtrToStructure(wParam, typeof(Acp));
textBox.QueryInsert(acp, (uint)lParam);
Marshal.StructureToPtr(acp, wParam, false);
}
break;
case WM_KILLFOCUS:
Game1.tsf.TerminateComposition();
break;
#endif
default:
break;
}
return(returnCode);
}
