VB.NET怎么调用摄像头啊?求实例,最好配注释啊

Private Const WS_CHILD = H40000000

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Private Const WS_VISIBLE = H10000000

Private Const WM_CAP_START = H400

Private Const WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10

Private Const WM_CAP_SET_SCALE = WM_CAP_START + 53

Private Const WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52

Private Const WM_CAP_SET_PREVIEW = WM_CAP_START + 50

Private Declare Function capCreateCaptureWindowA Lib "avicap32.dll" ( _

ByVal lpszWindowName As String, _

ByVal dwStyle As Long, _

ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Integer, _

ByVal hWndParent As Long, ByVal nID As Long) As Long

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Integer, ByVal lParam As Long) As Long

Private Sub Form_Load()

'建立采集窗口（不显示窗口，处理后显示到PIC控件）

uwndc = capCreateCaptureWindowA("", WS_VISIBLE Or WS_CHILD, 0, 0, 320, 240, Me.hWnd, 0)

'连接

SendMessage uwndc, WM_CAP_DRIVER_CONNECT, 0, 0

'Scale开

SendMessage uwndc, WM_CAP_SET_SCALE, True, 0

'显示刷新MS

SendMessage uwndc, WM_CAP_SET_PREVIEWRATE, 40, 0

'用予览方式显示(特殊需要，不显示予缆）

SendMessage uwndc, WM_CAP_SET_PREVIEW, True, 0

End Sub

上述代码就可以实现 但是要注意相应的控件是否存在 不存在的 你自己画出来

vb.net如何在win10的平板上用摄像头

1.点击打开开始菜单 - 电脑设置，打开电脑设置窗口。如下图所示

2.在打开的电脑设置窗口中，点击打开“隐私”项进入下一步操作。如下图所示

3.在隐私功能界面中，找到“摄像头”点击打开。如下图所示

4.点击将允许应用使用我的摄像头开启，关闭电脑设置窗口完成操作。如下图所示

VB.NET中怎么调用摄像头

给你个工程自己看...

运行后可以看到自己...

点按钮保存到c:\1.bmp

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