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
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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
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