Question

我在vb.net上写，我正在使用Visual Studio 2010 Professional

好的，所以我要展示我的代码，然后解释一下我需要帮助的地方。

Imports System.IO.File
Imports System.IO.Directory
Imports System.IO

Public Class ImageSelection

    Private Sub ImageSelectionbtn_Click(sender As System.Object, e As System.EventArgs) Handles ImageSelectionbtn.Click

        With OpenFileDialog1
            .Filter = _
"Image File (*.jpg)|*.jpg|Image File (*.jpeg)|*.jpeg|Image File (*.bmp)|*.bmp|Image File (*.gif)|*.gif"
            .InitialDirectory = System.Environment.SpecialFolder.MyPictures
            .Title = "Select a picture to open"

            If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then

                ''''Here is where i need help''''
                Dim MyImage = OpenFileDialog1.FileName
                Dim MyImageWidth
                Dim MyImageHeight
                '''''''''''''''''''''''''''''''''

                With MyPicture 'MyPicture form

                    .Width = MyImageWidth
                    .Height = MyImageHeight
                    .PictureBox1.Image = Nothing
                    MyPicture.Show()
                End With
            End If
        End With
    End Sub
End Class

好的，我正在做的是当用户点击按钮时，它会显示一个打开的文件对话框，该对话框被过滤为仅允许。jpg。jpeg。{{1} }和。bmp

现在，当他们选择他们的照片时，我需要一种能够从所选图像中提取一小部分信息的方法。

我需要图像高度和图像宽度，以便我可以将另一个表单（带有停靠图像框的表格）设置为该图像的大小。

我还需要帮助将第二种形式的gif设置为他们选择的图像。

非常感谢任何帮助。

Answer 1

 With OpenFileDialog1
     .Filter = _
     "Image File (*.jpg)|*.jpg|Image File (*.jpeg)|*.jpeg|Image File (*.bmp)|*.bmp|Image File (*.gif)|*.gif"
     .InitialDirectory = System.Environment.SpecialFolder.MyPictures
     .Title = "Select a picture to open"

     If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
         ''''Here is where i need help''''
         Dim MyImage = OpenFileDialog1.FileName
         Dim image As Image = System.Drawing.Bitmap.FromFile(MyImage) 'Convert to Image from the selected file

         Dim MyImageWidth As Integer = image.Width 'Get The Width
         Dim MyImageHeight As Integer = image.Height 'Get The Height

         '''''''''''''''''''''''''''''''''
         With MyPicture 'MyPicture form

             .Width = MyImageWidth
             .Height = MyImageHeight
             .PictureBox1.Image = image
             MyPicture.Show()
         End With
     End If
 End With

获取所选图像的属性

1 个答案: