IBus is an input system in Linux. http://en.wikipedia.org/wiki/Intelligent_Input_Bus The exact problem is, I cannot use IBus to input Chinese characters in the Wine game. The expected outcome is, IBus can detect the input window, and able to enter the Chinese characters. Wine version: 1.3.34 IBus version: 1.3.9 Linux distribution: Arch Linux The terminal output: fixme:imm:NotifyIME IMC_SETCONVERSIONMODE fixme:imm:ImeHandleNotify WM_IME_NOTIFY:IMN_SETCONVERSIONMODE fixme:imm:NotifyIME IMC_SETSENTENCEMODE fixme:imm:ImeHandleNotify WM_IME_NOTIFY:IMN_SETSENTENCEMODE fixme:imm:ImmReleaseContext (0x2005e, 0x4577620): stub fixme:imm:ImeHandleNotify WM_IME_NOTIFY:IMN_SETCOMPOSITIONWINDOW fixme:imm:ImmGetOpenStatus (0x4577620): semi-stub