How can I move the IME window to a specific position?

Question

I want to move the IME window to specific position on the screen. And if possible, relative to the client area. How can I achieve this with Win32?

Answer 1

It seems to work with ImmSetCompositionWindow

But I had to intercept messages like WM_IME_STARTCOMPOSITION, WM_IME_COMPOSITION, ... in the main message loop

and I called ImmAssociateContextEx at beginning :

Answer 2

Hi, @thebluetropics

Using ImmSetCompositionWindow is effective.

if (uMsg == WM_IME_COMPOSITION)
{
		
	
		HIMC hIMC = ImmGetContext(m_hWnd);
		if (hIMC) 
		{
			// Set composition window position near caret position
			POINT point;
			GetCaretPos(&point);
 
			COMPOSITIONFORM Composition;
			Composition.dwStyle = CFS_POINT;
			Composition.ptCurrentPos.x = point.x;
			Composition.ptCurrentPos.y = point.y;
			ImmSetCompositionWindow(hIMC, &Composition);
 
			ImmReleaseContext(m_hWnd,hIMC);
		}

Thank you.