单击后如何更改图像按钮的图像？

Question

我试图在单击 Bunifu 图像按钮后更改它的图像，因为它是一个音量 on/off 按钮。但是我的代码有一个例外，说 "path is not a legal form".

这是我的代码：

Private Sub BtnMute_Click(sender As Object, e As EventArgs) Handles BtnMute.Click

    Dim OpenFileDialog As New OpenFileDialog
    Dim Filename = "D:\Storage\Team Tag\Corporation\Corporation 3D Logo (PNG).png"

    Dim mute As New System.Drawing.Bitmap(OpenFileDialog.FileName)

    If MissionBriefingPlayer.settings.volume > 0 Then
        MissionBriefingPlayer.settings.volume = 0
        BtnMute.Image = mute
    Else
        MissionBriefingPlayer.settings.volume = 100
    End If

End Sub

Answer 1

不需要OpenFileDialog。

这是一个更好的方法。另外，您可以做的另一件事是在取消静音时不要将音量设置为 100，而是在静音之前将音量保存在静态变量中，然后在取消静音时将其设置回保存的音量：

Private Sub BtnMute_Click(sender As Object, e As EventArgs) Handles BtnMute.Click

    Static _savedVolume as Integer = 0

    If MissionBriefingPlayer.settings.volume > 0 Then
        _savedVolume = MissionBriefingPlayer.settings.volume

        MissionBriefingPlayer.settings.volume = 0

        BtnMute.Image = New System.Drawing.Bitmap("D:\Storage\Team Tag\Corporation\Corporation 3D Logo (PNG).png")
    Else
        MissionBriefingPlayer.settings.volume = _savedVolume
    End If

End Sub

单击后如何更改图像按钮的图像？

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