public static extern bool ImmSetCandidateWindow(IntPtr hIMC, ref CANDIDATEFORM lpCandidate);
public static int ImmSetCandidateWindow(IntPtr himc, ref CANDIDATEFORM lpCandidateForm)
{
NotImplemented(MethodBase.GetCurrentMethod());
return(0);
}
public static extern int ImmSetCandidateWindow(IntPtr hIMC, ref CANDIDATEFORM lpCandidateForm);
public static extern int ImmSetCandidateWindow(IntPtr hIMC, [MarshalAs(UnmanagedType.Struct)] ref CANDIDATEFORM lpCandidateForm);
public static extern bool ImmSetCandidateWindow(IntPtr hIMC, ref CANDIDATEFORM candidateForm);
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WM_IME_STARTCOMPOSITION:
_ime = new TerminalChars(this, Color.Red, Color.Transparent, cols, lines);
return;
case WM_IME_ENDCOMPOSITION:
_ime = null;
Invalidate();
return;
case WM_IME_COMPOSITION:
if (_ime != null)
{
IntPtr hIMC = ImmGetContext(Handle);
if ((((int)m.LParam) & GCS_COMPSTR) != 0)
{
int dwSize = ImmGetCompositionString(hIMC, GCS_COMPSTR, null, 0);
byte[] bs = new byte[dwSize];
ImmGetCompositionString(hIMC, GCS_COMPSTR, bs, bs.Length);
string str = UnicodeEncoding.Unicode.GetString(bs);
_ime.clear();
_ime.cursor = _chars._cursor;
_ime.bg = Color.Black;
_ime.fg = Color.Red;
foreach (char c in str)
{
_ime.put(c, 0);
}
_ime.bg = Color.Transparent;
_ime.fg = Color.Red;
}
if ((((int)m.LParam) & GCS_CURSORPOS) != 0)
{
_ime.cursor = _chars._cursor;
for (int pos = ImmGetCompositionString(hIMC, GCS_CURSORPOS, null, 0); pos != 0; --pos)
{
_ime.advanceVisible();
}
}
CANDIDATEFORM l = new CANDIDATEFORM();
l.dwIndex = 0;
l.dwStyle = CFS_CANDIDATEPOS;
l.ptCurrentPos.X = (int)(10 + _ime.cursor.col * Font.Size.Width);
l.ptCurrentPos.Y = (int)(10 + _ime.cursor.line * Font.Size.Height);
ImmSetCandidateWindow(hIMC, ref l);
ImmReleaseContext(Handle, hIMC);
}
base.WndProc(ref m);
return;
default:
base.WndProc(ref m);
return;
}
}
private void MoveImeWindow(IntPtr windowHandle, IntPtr immContext, Point p)
{
var x = p.X;
var y = p.Y;
// As written in a comment in ImeInput::CreateImeWindow(),
// Chinese IMEs ignore function calls to ::ImmSetCandidateWindow()
// when a user disables TSF (Text Service Framework) and CUAS (Cicero
// Unaware Application Support).
// On the other hand, when a user enables TSF and CUAS, Chinese IMEs
// ignore the position of the current system caret and uses the
// parameters given to ::ImmSetCandidateWindow() with its 'dwStyle'
// parameter CFS_CANDIDATEPOS.
// Therefore, we do not only call ::ImmSetCandidateWindow() but also
// set the positions of the temporary system caret if it exists.
var candidatePosition = new CANDIDATEFORM
{
dwIndex = 0,
rcArea = new RECT {
bottom = 0, left = 0, right = 0, top = 0
},
dwStyle = NativeConstants.CFS_CANDIDATEPOS,
ptCurrentPos = new POINT(x, y + 10)
};
var size = Marshal.SizeOf(candidatePosition);
var cfPtr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(candidatePosition, cfPtr, true);
var result = SafeNativeMethods.ImmSetCandidateWindow(immContext, cfPtr);
Marshal.DestroyStructure(cfPtr, typeof(CANDIDATEFORM));
#region Chinese/Korean
/*if (system_caret_)
* {
* switch (PRIMARYLANGID(input_language_id_))
* {
* case LANG_JAPANESE:
* SetCaretPos(x, y + caret_rect_.height());
* break;
* default:
* SetCaretPos(x, y);
* break;
* }
* }
* if (PRIMARYLANGID(input_language_id_) == LANG_KOREAN)
* {
* // Chinese IMEs and Japanese IMEs require the upper-left corner of
* // the caret to move the position of their candidate windows.
* // On the other hand, Korean IMEs require the lower-left corner of the
* // caret to move their candidate windows.
* y += kCaretMargin;
* }*/
#endregion
// Japanese IMEs and Korean IMEs also use the rectangle given to
// ::ImmSetCandidateWindow() with its 'dwStyle' parameter CFS_EXCLUDE
// to move their candidate windows when a user disables TSF and CUAS.
// Therefore, we also set this parameter here.
var excludeRectangle = new CANDIDATEFORM
{
dwIndex = 0,
dwStyle = NativeConstants.CFS_EXCLUDE,
ptCurrentPos = new POINT(x, y + 10),
rcArea = new RECT {
left = x, top = y + 10, right = x + 10, bottom = y + this._textView.LineHeight + 10
}
};
var size2 = Marshal.SizeOf(excludeRectangle);
var cfPtr2 = Marshal.AllocHGlobal(size2);
Marshal.StructureToPtr(excludeRectangle, cfPtr2, true);
var result2 = SafeNativeMethods.ImmSetCandidateWindow(immContext, cfPtr2);
Marshal.DestroyStructure(cfPtr2, typeof(CANDIDATEFORM));
//ImmSetCandidateWindow(imm_context, exclude_rectangle);
}
