VB让无边框窗体实现自定义缩放和移动的具体代码怎么写

可以使用 Windows API 函数来实现自定义缩放和移动无边框窗体。

以下是VB代码示例：

Private Declare Function ReleaseCapture Lib "user32" () As Long
Private Declare Function SendMessageA Lib "user32" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Const WM_NCLBUTTONDOWN = &HA1
Private Const HTCAPTION = 2

Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If Button = vbLeftButton Then
        ReleaseCapture
        SendMessageA Me.hwnd, WM_NCLBUTTONDOWN, HTCAPTION, 0&
    End If
End Sub

在无边框窗体的`Form_MouseDown`事件中添加上述代码，即可实现窗体的自定义移动。

如果想要实现自定义缩放，需要再添加相关的代码实现。