The IMN_SETCOMPOSITIONWINDOW message is sent when the style or position of the composition window is updated. The application receives this notification message through the WM_IME_NOTIFY message.
No return value.
The application can get information about the composition form by using the IMC_GETCOMPOSITIONWINDOW message.
Windows NT: Requires version 4.0 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 2.0 or later.
Header: Declared in imm.h.
Input Method Editor Overview, Input Method Editor Messages, IMC_GETCOMPOSITIONWINDOW, WM_IME_NOTIFY