go walk 消息窗

walk.MsgBox

1. 消息窗

func MsgBox(owner Form, title, message string, style MsgBoxStyle) int

• owner Form 父窗体句柄

• title 消息窗的标题

• message 消息内容

• style 消息窗的样式

walk.MsgBox(
        mw,
        "Title",
        "Message",
        walk.MsgBoxServiceNotification)

参数style 取值比较多可参照 walk 包下面的 messagebox.go 中定义的

2. 消息按钮事件的触发

   walk.MsgBox 方法的返回值是int ，这个返回值就是点击消息窗按钮时返回的，返回用户点击的具体的按钮的Id,可以通过判断这个来触发点击回调。具体实现如下,部分关键代码：

   OnClicked: func() {
            cmd=walk.MsgBox(
                mw,
                "Title",
                "Message",
                walk.MsgBoxYesNoCancel)
            switch cmd {
            case walk.DlgCmdYes:
                le.SetText("click 是")
            case walk.DlgCmdCancel:
                le.SetText("click 取消")
            case walk.DlgCmdNo:
                le.SetText("click 否")
            }
        },

完整代码

package main

import (
    "fmt"
    "github.com/lxn/walk"
    . "github.com/lxn/walk/declarative"
)

func main()  {
    var(
        pb PushButton
        _pb *walk.PushButton
        mw *walk.MainWindow
        le *walk.LineEdit
        cmd int
    )
    pb=PushButton{
        AssignTo:&_pb,
        Text:"btn",
        MaxSize:Size{150,30},
        OnClicked: func() {
            cmd=walk.MsgBox(
                mw,
                "Title",
                "Message",
                walk.MsgBoxYesNoCancel)
            switch cmd {
            case walk.DlgCmdYes:
                le.SetText("click 是")
            case walk.DlgCmdCancel:
                le.SetText("click 取消")
            case walk.DlgCmdNo:
                le.SetText("click 否")
            }
        },
    }

    if _,err:=(MainWindow{
        Title:"layout_flow_demo",
        AssignTo:&mw,
        Layout:VBox{MarginsZero:true},
        Size:Size{300,50},

        Children: []Widget{
            HSplitter{
                Children: []Widget{
                    LineEdit{
                        AssignTo:&le,
                        MaxSize:Size{150,30},
                    },
                    pb,
                    HSpacer{},
                },
            },
            VSpacer{},
        },
    }.Run());err!=nil{
        fmt.Println(err)
    }
}