Detect Input Method Changes

原创于 2008-03-11 11:05:00 发布 · 399 阅读

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CC 4.0 BY-SA版权

文章标签：

#input #application #user #os

本文介绍了当用户更改输入面板状态时，操作系统如何通过发送WM_SETTINGCHANGE消息通知应用程序。此外，还讨论了输入方法编辑器(IMM)在用户更改输入语言后如何发送WM_INPUTLANGCHANGE消息。

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From http://msdn.microsoft.com/library/en-us/wceui/html/_wcesdk_Programming_an_Input_Panel.asp

When the user changes the state of the input panel, the OS sends out a WM_SETTINGCHANGE message to all of the active applications. This wParam parameter of this message is the value SPI_SETSIPINFO in its wParam parameter.

The IMM sends a WM_INPUTLANGCHANGE message to the active window of an application after the input locale has been changed by the user with a key combination (usually ALT+SHIFT), or with the input locale indicator on the taskbar or language bar. The language bar is an on-screen control with which the user can configure a text service.