怎样用VB实现抓屏？

2008-11-02 05:53:50 638 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

AUTOSAR BswM配置实战：手把手教你用Vector Davinci Configurator搭建第一个模式管理规则本文详细介绍了如何使用Vector Davinci Configurator工具配置AUTOSAR BswM模块，实现车身控制ECU的模式管理规则。通过实战案例，从环境准备、核心概念梳理到具体配置步骤，包括ModeRequestPort、ModeCondition、Logical Expression和Rules的构建，帮助工程师快速掌握BswM配置技巧，提升汽车电子软件开发效率。阅读详情

如何抓整个桌面及活动窗口？

...全文

ABAP_自定义屏幕07—下拉列表框 ABAP_自定义屏幕07—下拉列表框完成以下：页面中有下拉列表框，下拉框value=系统表SCRR的值 1、实现方法A-常用 1.1 在主程序定义字段 TYPES:BEGIN OF type_carrid, carrid LIKE scarr-carrid,"航线代码 carrname LIKE scarr-carrname,"航向名称 END OF type_carrid. DATA g_it_carrid TYPE STANDARD TABLE OF type_carrid 阅读详情

hld168

多媒体 807 成员 8,274 内容

+ 关注 + 加入社区

切换为时间正序

qzw405 2009-03-27

打赏
举报

帮你顶！

ZOU_SEAFARER 2009-03-27

打赏
举报

直接使用屏幕拷贝，然后存储

clear_zero 2009-03-27

打赏
举报

学习

zztxfxp 2009-03-27

打赏
举报

学习了，不过二楼代码好像不完整。疑惑中。。。。

Soyokaze 2009-03-24

打赏
举报

模拟键盘的PrintScreen键，然后从剪贴板里拷贝。这也是一种可行的方案。

wap21 2009-03-24

打赏
举报

mark

wap21 2009-03-07

打赏
举报

帮顶

li730128 2009-03-06

打赏
举报

不错，大家很热心的。

lorl2 2008-11-03

打赏
举报

提问之前,怎么不GOOGLE一下"vb 抓屏"先呢?

a294447011294447011 2008-11-03

打赏
举报

VB抓屏代码网上很多:
比如:
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function StretchBlt Lib "gdi32" (ByVal hdc 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 nSrcWidth As Long, _
ByVal nSrcHeight As Long, ByVal dwRop As Long) As Long
Private Sub Command1_Click()
Dim wScreen As Long
Dim hScreen As Long
Dim w As Long
Dim h As Long
Picture1.Cls
wScreen = Screen.Width \ Screen.TwipsPerPixelX
hScreen = Screen.Height \ Screen.TwipsPerPixelY
Picture1.ScaleMode = vbPixels
w = Picture1.ScaleWidth
h = Picture1.ScaleHeight
hdcScreen = GetDC(0)
r = StretchBlt(Picture1.hdc, 0, 0, w, h, hdcScreen, 0, 0, wScreen, hScreen, vbSrcCopy)
End Sub
Private Sub Form_Load()
End Sub

还有如:
Option Explicit
Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Private Sub Command1_Click()
keybd_event vbKeySnapshot, 0&, 0&, 0&
DoEvents
Picture1.Picture = Clipboard.GetData(vbCFBitmap)
SavePicture Picture1.Picture, "c:\屏幕截图.bmp"
End Sub

daisy8675 2008-11-03

打赏
举报

[Quote=引用 7 楼 zzyong00 的回复:]
难得一见李洪根
[/Quote]

哈哈,他现在在米国估计发闲空了

zzyong00 2008-11-03

打赏
举报

难得一见李洪根

tongnaifu 2008-11-03

打赏
举报

mark一下

碧海情天-赵亮 2008-11-03

打赏
举报

这样也好，如果都GOOGLE的话，想得分就不容易了，容易减少回答者的积极性和来访次数，那么有找不到答案的问题再来问的话，也就不容易得到答案了。现在的一些新机制促进了一些积极性，很多消失已久的人都回来了呢。

6742 2008-11-03

打赏
举报

同意前面2位

lihonggen0 2008-11-02

打赏
举报

活动窗口：





'Option Compare Database

Option Explicit



Type RECT_Type



   left As Long

   top As Long

   right As Long

   bottom As Long



End Type



'The following declare statements are case sensitive.



Declare Function GetActiveWindow Lib "User32" () As Long

Declare Function GetDesktopWindow Lib "User32" () As Long

Declare Sub GetWindowRect Lib "User32" (ByVal Hwnd As Long, _

                                    lpRect As RECT_Type)

Declare Function GetDC Lib "User32" (ByVal Hwnd As Long) As Long

Declare Function CreateCompatibleDC Lib "Gdi32" (ByVal hdc As Long) _

                                    As Long

Declare Function CreateCompatibleBitmap Lib "Gdi32" (ByVal hdc _

                                    As Long, ByVal nWidth As Long, _

                                    ByVal nHeight As Long) As Long

Declare Function SelectObject Lib "Gdi32" (ByVal hdc As Long, _

                                    ByVal hObject As Long) As Long

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

Declare Function OpenClipboard Lib "User32" (ByVal Hwnd As Long) As Long

Declare Function EmptyClipboard Lib "User32" () As Long

Declare Function SetClipboardData Lib "User32" (ByVal wFormat As Long, _

                                    ByVal hMem As Long) As Long

Declare Function CloseClipboard Lib "User32" () As Long

Declare Function ReleaseDC Lib "User32" (ByVal Hwnd As Long, _

                                    ByVal hdc As Long) As Long

Declare Function DeleteDC Lib "Gdi32" (ByVal hdc As Long) As Long

Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)



Global Const SRCCOPY = &HCC0020

Global Const CF_BITMAP = 2





Function ScreenDump()

   Dim AccessHwnd As Long, DeskHwnd As Long

   Dim hdc As Long

   Dim hdcMem As Long

   Dim rect As RECT_Type

   Dim junk As Long

   Dim fwidth As Long, fheight As Long

   Dim hBitmap As Long



  ' DoCmd.Hourglass True



   '---------------------------------------------------

   ' Get window handle to Windows and Microsoft Access

   '---------------------------------------------------

   DoEvents

   DeskHwnd = GetDesktopWindow()

   AccessHwnd = GetActiveWindow()



   '---------------------------------------------------

   ' Get screen coordinates of Microsoft Access

   '---------------------------------------------------

   Call GetWindowRect(AccessHwnd, rect)

   fwidth = rect.right - rect.left

   fheight = rect.bottom - rect.top



   '---------------------------------------------------

   ' Get the device context of Desktop and allocate memory

   '---------------------------------------------------

   hdc = GetDC(DeskHwnd)

   hdcMem = CreateCompatibleDC(hdc)

   hBitmap = CreateCompatibleBitmap(hdc, fwidth, fheight)



   If hBitmap <> 0 Then

      junk = SelectObject(hdcMem, hBitmap)



      '---------------------------------------------

      ' Copy the Desktop bitmap to memory location

      ' based on Microsoft Access coordinates.

      '---------------------------------------------

      junk = BitBlt(hdcMem, 0, 0, fwidth, fheight, hdc, rect.left, _

                    rect.top, SRCCOPY)



      '---------------------------------------------

      ' Set up the Clipboard and copy bitmap

      '---------------------------------------------

      junk = OpenClipboard(DeskHwnd)

      junk = EmptyClipboard()

      junk = SetClipboardData(CF_BITMAP, hBitmap)

      junk = CloseClipboard()

   End If



   '---------------------------------------------

   ' Clean up handles

   '---------------------------------------------

   junk = DeleteDC(hdcMem)

   junk = ReleaseDC(DeskHwnd, hdc)



  ' DoCmd.Hourglass False



End Function

lihonggen0 2008-11-02

打赏
举报

要用到如下API



Private Type POINTAPI

    x As Long

    y As Long

End Type

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 GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long

Private Declare Function DrawIcon Lib "user32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long) As Long

Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hdc As Long) As Long



Private Sub Command1_Click()

    Dim hdc As Long

    Dim sw As Integer

    Dim sh As Integer

    Dim CurPos As POINTAPI

    Dim Cur As Long

    Me.Hide

    DoEvents

    Picture1.AutoRedraw = True

    hdc = GetDC(0)

    GetCursorPos CurPos

    Cur = GetCursor

    Picture1.Width = Screen.Width

    Picture1.Height = Screen.Height

    sw = Screen.Width / Screen.TwipsPerPixelX

    sh = Screen.Height / Screen.TwipsPerPixelY

    BitBlt Picture1.hdc, 0, 0, sw, sh, hdc, 0, 0, vbSrcCopy

    Me.Show

    DrawIcon Picture1.hdc, CurPos.x - 10, CurPos.y - 10, Cur

    ReleaseDC 0, hdc

    Picture1.AutoRedraw = False



End Sub

怎样用VB实现抓屏？

相关推荐