VB.NET怎么調(diào)用攝像頭啊?求實(shí)例,最好配注釋啊

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（不顯示窗口，處理后顯示到PIC控件）

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

'連接

SendMessage uwndc, WM_CAP_DRIVER_CONNECT, 0, 0

'Scale開(kāi)

SendMessage uwndc, WM_CAP_SET_SCALE, True, 0

'顯示刷新MS

SendMessage uwndc, WM_CAP_SET_PREVIEWRATE, 40, 0

'用予覽方式顯示(特殊需要，不顯示予纜）

SendMessage uwndc, WM_CAP_SET_PREVIEW, True, 0

End Sub

上述代碼就可以實(shí)現(xiàn) 但是要注意相應(yīng)的控件是否存在 不存在的 你自己畫(huà)出來(lái)

基恩士相機(jī)傳圖像到VB.NET平臺(tái)?

相機(jī)廠商有提供vb.net的SDK沒(méi)有？沒(méi)有的話需要自己從c++代碼轉(zhuǎn)化，無(wú)外乎就是通過(guò)回調(diào)函數(shù)返回一字節(jié)數(shù)組

vbnet打開(kāi)windows照相機(jī)

1.點(diǎn)擊打開(kāi)開(kāi)始菜單 - 電腦設(shè)置，打開(kāi)電腦設(shè)置窗口。如下圖所示2.在打開(kāi)的電腦設(shè)置窗口中，點(diǎn)擊打開(kāi)“隱私”項(xiàng)進(jìn)入下一步操作。如下圖所示3.在隱私功能界面中，找到“攝像頭”點(diǎn)擊打開(kāi)。如下圖所示4.點(diǎn)擊將允許應(yīng)用使用我的攝像頭開(kāi)啟，關(guān)閉電腦設(shè)置窗口完成操作

VB.NET中怎么調(diào)用攝像頭

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