GCS_.txt

/*
 * dwSystemInfoFlags bits
 * parameter of ImmGetCompositionString
 */
#define GCS_COMPREADSTR                 0x0001
#define GCS_COMPREADATTR                0x0002
#define GCS_COMPREADCLAUSE              0x0004
#define GCS_COMPSTR                     0x0008
#define GCS_COMPATTR                    0x0010
#define GCS_COMPCLAUSE                  0x0020
#define GCS_CURSORPOS                   0x0080
#define GCS_DELTASTART                  0x0100
#define GCS_RESULTREADSTR               0x0200
#define GCS_RESULTREADCLAUSE            0x0400
#define GCS_RESULTSTR                   0x0800
#define GCS_RESULTCLAUSE                0x1000

/* style bit flags for WM_IME_COMPOSITION */
#define CS_INSERTCHAR                   0x2000
#define CS_NOMOVECARET                  0x4000