vb.net截图,vb程序怎么截图
请问:在vb.net2015中,如何编写截图程序?
Me.Refresh()
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Dim memory As Image = New Bitmap(Me.Width, Me.Height)
Dim g As Graphics = Graphics.FromImage(memory)
g.CopyFromScreen(Me.Left, Me.Top, 0, 0, New Size(Me.Width, Me.Height)) '这里是截屏核心代码
Dim FilePath As String = ""
Dim d As New SaveFileDialog
d.Filter = "JPEG图像|*.JPEG"
If d.ShowDialog = Windows.Forms.DialogResult.OK Then
FilePath = d.FileName
If FilePath = "" Then Exit Sub
'If FilePath.Substring(FilePath.Length - 1, 1) "\" Then FilePath = FilePath "\"
Else
Exit Sub
End If
d.Dispose()
memory.Save(FilePath)
MessageBox.Show("图像已经保存到: " FilePath, "截图成功", MessageBoxButtons.OK, MessageBoxIcon.Information)
请问高手,用VB编程怎样去截取活动窗口?
1,用VB截取DirectX窗口内容的程序,最好能够直截取窗口的内容,不要窗口标题栏VB.NET中利用 GDI 就可以截图,DX 也不例外。 先声明 Imports System.
vb.net 怎么来回切换图片?
vb.net 怎么来回切换图片?1、添加控件Picturebox1和控件Timer1,将Timer1的Interval属性改为1000(即1秒),Enabled属性改为True
2、假设你要循环切换4张图片,你可以添加如下代码即可实现:
Dim a As Integer = 0
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If a = 4 Then
a = 0
Else
a = a + 1
End If
If a = 0 Then Me.PictureBox1.Image = Image.FromFile("1.jpg")
If a = 1 Then Me.PictureBox1.Image = Image.FromFile("2.jpg")
If a = 2 Then Me.PictureBox1.Image = Image.FromFile("3.jpg")
If a = 3 Then Me.PictureBox1.Image = Image.FromFile("4.jpg")
End Sub
VB.net点击按钮后截图,截取被当前窗体挡住的图像作为窗体背景(窗体默认无边框样式)
'没办法,需的把窗口隐藏一下,还的隐藏后延迟一下再截图。
Dim WithEvents Timer1 As New Timer With {.Interval = 30, .Enabled = False}
Dim Imgrect As Rectangle
Dim img As Bitmap
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Imgrect = Me.RectangleToScreen(Me.ClientRectangle)
img = New Bitmap(Imgrect.Width, Imgrect.Height)
Me.Hide()
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Timer1.Stop()
Graphics.FromImage(img).CopyFromScreen(Imgrect.X, Imgrect.Y, 0, 0, Imgrect.Size)
Me.BackgroundImage = img
Me.Show()
End Sub
vb.net 2008 如何将指定的窗体截图并保存
INTOUCH自带的就有,打印屏幕的命令
自己写个时间条件运行那命令就可以了
PRINTSCREEN这个命令 具体怎么用 看下帮助
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