vb.net句柄截图 mumu模拟器句柄截图

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

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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

希望我的回答对你有所帮助

如有其他问题，可以继续追问，您的采纳是我前进的动力！

VB截取屏幕

[DllImport("user32.dll", EntryPoint = "GetDC")]

public static extern IntPtr GetDC(IntPtr hWnd);

[DllImport("user32.dll", EntryPoint = "ReleaseDC")]

public static extern IntPtr ReleaseDC(IntPtr hWnd, IntPtr hDC);

[DllImport("user32.dll", SetLastError = true)]

static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

[DllImport("user32.dll", SetLastError = true)]

static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

先找到你要截图的那个窗体的 句柄 然后根据这个句柄得到改窗体的DC 创建一个bitmap 然后填充 得到的bitmap后 显示到picturebox里面

VB全屏截图代码

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vb 的 仿QQ拼音截图,代码给你了,新建个记事本,然后复制下面的内容保存,然后把记事本的后缀名改为.frm

VERSION 5.00

Begin VB.Form VB模拟QQ截屏

BorderStyle = 0 'None

Caption = "模拟QQ截屏"

ClientHeight = 5310

ClientLeft = 0

ClientTop = 0

ClientWidth = 6180

Icon = "模拟QQ截屏.frx":0000

KeyPreview = -1 'True

LinkTopic = "Form1"

ScaleHeight = 5310

ScaleWidth = 6180

ShowInTaskbar = 0 'False

StartUpPosition = 3 '窗口缺省

Begin VB.PictureBox Picture1

BackColor = H00F8E2DE

BorderStyle = 0 'None

Height = 390

Left = 0

ScaleHeight = 390

ScaleWidth = 3075

TabIndex = 0

Top = 0

Visible = 0 'False

Width = 3080

Begin VB.Line Line1

BorderColor = H00FFC0C0

X1 = 1620

X2 = 1620

Y1 = 40

Y2 = 320

End

Begin VB.Label lblInfo

Alignment = 2 'Center

Appearance = 0 'Flat

BackColor = H80000005

BackStyle = 0 'Transparent

Caption = "Label2"

BeginProperty Font

Name = "宋体"

Size = 10.5

Charset = 134

Weight = 700

Underline = 0 'False

Italic = 0 'False

Strikethrough = 0 'False

EndProperty

ForeColor = H00EC7A00

Height = 255

Left = 45

TabIndex = 2

Top = 75

Width = 1540

End

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高手请进 关于VB截图的图片文件大小问题

1,建立工程，在form1 上放一个picture框

2,把下面的代码放到代码区

3,f5测试，会在工程目录下生成一个jpg.里面的压缩参数和保存位置你自己可调整

---------------------灰常nb的分割线--------------------

Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long

Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long

Private Declare Function GdiplusStartup Lib "GDIPlus" (token As Long, inputbuf As GdiplusStartupInput, ByVal outputbuf As Long) As Long

Private Declare Function GdiplusShutdown Lib "GDIPlus" (ByVal token As Long) As Long

Private Declare Function GdipCreateBitmapFromHBITMAP Lib "GDIPlus" (ByVal hbm As Long, ByVal hpal As Long, Bitmap As Long) As Long

Private Declare Function GdipDisposeImage Lib "GDIPlus" (ByVal Image As Long) As Long

Private Declare Function GdipSaveImageToFile Lib "GDIPlus" (ByVal Image As Long, ByVal filename As Long, clsidEncoder As GUID, encoderParams As Any) As Long

Private Declare Function CLSIDFromString Lib "ole32" (ByVal str As Long, id As GUID) As Long

Private Declare Function GdipCreateBitmapFromFile Lib "GDIPlus" (ByVal filename As Long, Bitmap As Long) As Long

Private Type GUID

Data1 As Long

Data2 As Integer

Data3 As Integer

Data4(0 To 7) As Byte

End Type

Private Type GdiplusStartupInput

GdiplusVersion As Long

DebugEventCallback As Long

SuppressBackgroundThread As Long

SuppressExternalCodecs As Long

End Type

Private Type EncoderParameter

GUID As GUID

NumberOfValues As Long

type As Long

Value As Long

End Type

Private Type EncoderParameters

Count As Long

Parameter As EncoderParameter

End Type

Private Sub Form_Load()

Dim rFN As String

Dim ret As Boolean

rFN = getFN

Me.Hide

Me.AutoRedraw = True

Picture1.Width = Screen.Width + 30

Picture1.Height = Screen.Height + 30

BitBlt Picture1.hDC, 0, 0, Screen.Width + 30, Screen.Height + 30, GetDC(0), 0, 0, vbSrcCopy

Set Picture1.Picture = Picture1.Image

ret = PictureBoxSaveJPG(Picture1.Picture, Replace(App.Path "\" rFN ".JPG", "\\", "\")) '保存压缩后的图片

End

End Sub

Function getFN() As String

Dim dD As String, tT As String

dD = Replace(CStr(Date), "-", ""): tT = Replace(CStr(Time), ":", "")

tT = Replace(tT, "下午", "pm"): tT = Replace(tT, "上午", "am")

getFN = Replace(dD tT, " ", "")

End Function

Private Function PictureBoxSaveJPG(ByVal pict As StdPicture, ByVal filename As String, Optional ByVal quality As Byte = 80) As Boolean

Dim tSI As GdiplusStartupInput

Dim lRes As Long

Dim lGDIP As Long

Dim lBitmap As Long

'初始化 GDI+

tSI.GdiplusVersion = 1

lRes = GdiplusStartup(lGDIP, tSI, 0)

If lRes = 0 Then

'从句柄创建 GDI+ 图像

lRes = GdipCreateBitmapFromHBITMAP(pict.Handle, 0, lBitmap)

If lRes = 0 Then

Dim tJpgEncoder As GUID

Dim tParams As EncoderParameters

'初始化解码器的GUID标识

CLSIDFromString StrPtr("{557CF401-1A04-11D3-9A73-0000F81EF32E}"), tJpgEncoder

'设置解码器参数

tParams.Count = 1

With tParams.Parameter ' Quality

'得到Quality参数的GUID标识

CLSIDFromString StrPtr("{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}"), .GUID

.NumberOfValues = 1

.type = 4

.Value = VarPtr(quality)

End With

'保存图像

lRes = GdipSaveImageToFile(lBitmap, StrPtr(filename), tJpgEncoder, tParams)

'销毁GDI+图像

GdipDisposeImage lBitmap

End If

'销毁 GDI+

GdiplusShutdown lGDIP

End If

If lRes Then

PictureBoxSaveJPG = False

Else

PictureBoxSaveJPG = True

End If

End Function