相对于来自另一个表单的按钮移动winform vb / c＃

Question

我要你去检查这首..

这就是我正在处理的问题，按钮上的问题解决了，现在，无论何时何地拖动地图/图片，我都需要按下按钮。 它是这样的，在谷歌的API上infowindows。 第一张图片，我在html上制作了它。

而这一个..这就是我现在正在努力的，在winForms上，我不能用图片拖动form2 ..

这是我目前的代码..

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    Dim loc As Point = PictureBox1.PointToClient(Button1.PointToScreen(Point.Empty))
    Button1.Parent = PictureBox1
    Button1.Location = loc

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Form2.Show()
End Sub

Private Sub pictureBox1_LocationChanged(ByVal sender As Object, ByVal e As EventArgs)

    Dim p As Point = button1.PointToScreen(Point.Empty)
    p.Offset(5, 10)
    Form2.Location = p
    Form2.Owner = Me
End Sub

正如你所看到的，那个infowindow，我希望它成为我的winForms中的一个形式。 它的位置是否可能是按钮的相对/父级，就像上面的链接一样。 谢谢！

Answer 1

您可以尝试像这样处理图片框的LocationChanged ：

//LocationChanged event handler for your pictureBox1
private void pictureBox1_LocationChanged(object sender, EventArgs e){
  //Get the location of button1 in screen coordinates
  Point p = button1.PointToScreen(Point.Empty);
  //Offset it to what you want
  p.Offset(5,10);
  //set the location for your infoWindow form
  infoWindow.Location = p;
}

请注意，我使用infoWindow作为表单，我认为它在您的情况下可用，将FormBorderStyle设置为None并添加一些自定义关闭按钮...（您可以在此搜索更多，有大量示例）。 如果你不知道如何注册LocationChanged事件处理程序，这里它是：

pictureBox1.LocationChanged += pictureBox1_LocationChanged;

另请注意，您的infoWindow表单必须将您的主表单作为其所有者：

infoWindow.Owner = yourMainForm;
//or this if the code is placed inside mainForm class
infoWindow.Owner = this;

更新 ：

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
  Dim loc As Point = PictureBox1.PointToClient(Button1.PointToScreen(Point.Empty))
  Button1.Parent = PictureBox1
  Button1.Location = loc
  Form2.Owner = Me
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
  Form2.Show()
End Sub

Private Sub pictureBox1_LocationChanged(ByVal sender As Object, ByVal e As EventArgs) Handles PictureBox1.LocationChanged

  Dim p As Point = button1.PointToScreen(Point.Empty)
  p.Offset(-Form2.Width/2, -Form2.Height-10)
  Form2.Location = p

End Sub