如何将虚拟键盘的手写支持设置为启用

Question

我要在虚拟板上显示HandwritingModeKey。

我已经阅读了手册，说如果未为虚拟键盘启用手写支持，则将从键盘布局中自动隐藏键（HandwritingModeKey）。但是如何设置呢。我尝试设置输入面板或手写面板属性，但是没有用。

   InputPanel
    {
        id: vkb1
        visible: false
        anchors
        {
            left: parent.left
            bottom: parent.bottom
            right: parent.right
        }
    }
    HandwritingInputPanel
    {
        id: hwri
        active: true
        available: true
        enabled: false
        inputPanel: vkb1
       visible: true
        onEnabledChanged: vkb1.visible= true
    }

handwriting:!lipi-toolkit:!t9write:!myscript {
    include(plugins/myscript/3rdparty/myscript/myscript.pri)
    equals(MYSCRIPT_FOUND, 1) {
        CONFIG += myscript
    } else {
        include(plugins/t9write/3rdparty/t9write/t9write-build.pri)
        equals(T9WRITE_FOUND, 1): CONFIG += t9write
        else: CONFIG += lipi-toolkit
    }
}
myscript {
    !handwriting: include(plugins/myscript/3rdparty/myscript/myscript.pri)
}
t9write {
    !handwriting: include(plugins/t9write/3rdparty/t9write/t9write-build.pri)
    equals(T9WRITE_CJK_FOUND, 1): CONFIG += t9write-cjk
    equals(T9WRITE_ALPHABETIC_FOUND, 1): CONFIG += t9write-alphabetic
}
# Enable pkgconfig
win32: CONFIG += no-pkg-config
!no-pkg-config: CONFIG += link_pkgconfig

我要在虚拟板上显示HandwritingModeKey。那我该怎么办？