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| Const WM_CAP As Short = &H400S
Const WM_CAP_DRIVER_CONNECT As Integer = WM_CAP + 10
Const WM_CAP_DRIVER_DISCONNECT As Integer = WM_CAP + 11
Const WM_CAP_EDIT_COPY As Integer = WM_CAP + 30
Public Const WM_CAP_GET_STATUS As Integer = WM_CAP + 54
Public Const WM_CAP_DLG_VIDEOFORMAT As Integer = WM_CAP + 41
Const WM_CAP_SET_PREVIEW As Integer = WM_CAP + 50
Const WM_CAP_SET_PREVIEWRATE As Integer = WM_CAP + 52
Const WM_CAP_SET_SCALE As Integer = WM_CAP + 53
Const WS_CHILD As Integer = &H40000000
Const WS_VISIBLE As Integer = &H10000000
Const SWP_NOMOVE As Short = &H2S
Const SWP_NOSIZE As Short = 1
Const SWP_NOZORDER As Short = &H4S
Const HWND_BOTTOM As Short = 1
Structure POINTAPI
Dim x As Integer
Dim y As Integer
End Structure
Public Structure CAPSTATUS
Dim uiImageWidth As Integer '// Width of the image
Dim uiImageHeight As Integer '// Height of the image
Dim fLiveWindow As Integer '// Now Previewing video?
Dim fOverlayWindow As Integer '// Now Overlaying video?
Dim fScale As Integer '// Scale image to client?
Dim ptScroll As POINTAPI '// Scroll position
Dim fUsingDefaultPalette As Integer '// Using default driver palette?
Dim fAudioHardware As Integer '// Audio hardware present?
Dim fCapFileExists As Integer '// Does capture file exist?
Dim dwCurrentVideoFrame As Integer '// # of video frames cap'td
Dim dwCurrentVideoFramesDropped As Integer '// # of video frames dropped
Dim dwCurrentWaveSamples As Integer '// # of wave samples cap'td
Dim dwCurrentTimeElapsedMS As Integer '// Elapsed capture duration
Dim hPalCurrent As Integer '// Current palette in use
Dim fCapturingNow As Integer '// Capture in progress?
Dim dwReturn As Integer '// Error value after any operation
Dim wNumVideoAllocated As Integer '// Actual number of video buffers
Dim wNumAudioAllocated As Integer '// Actual number of audio buffers
End Structure
Public Sub connexionwebcam()
LoadDeviceList()
If lstDevices.Items.Count > 0 Then
lstDevices.SelectedIndex = 0
Else
lstDevices.Items.Add("Caméra non connectée")
End If
Me.AutoScrollMinSize = New Size(100, 100)
Dim r As Rectangle
iDevice = lstDevices.SelectedIndex
Dim bReturn As Boolean
Dim wSize As Integer
Dim s As CAPSTATUS
bReturn = SendMessage(hHwnd, WM_CAP_GET_STATUS, Marshal.SizeOf(s), s)
End Sub
Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
Dim bReturn As Boolean
Dim x As Short = 0
Do
bReturn = capGetDriverDescriptionA(x, strName, 100, strVer, 100)
If bReturn Then lstDevices.Items.Add(strName.Trim)
x += CType(1, Short)
Loop Until bReturn = False
End Sub
Private Sub OpenPreviewWindow()
If modemanuel = False Then
Dim picCapture As New PictureBox
End If
Dim iHeight As Integer = picCapture.Height
Dim iWidth As Integer = picCapture.Width
hHwnd = capCreateCaptureWindowA(iDevice.ToString, WS_VISIBLE Or WS_CHILD, 0, 0, 370, _
250, picCapture.Handle.ToInt32, 0)
' If SendMessage(hHwnd, WM_CAP_DRIVER_CONNECT, iDevice, 0) Then 'commentaire à supprimer
' If (hHwnd <> 0) Then ' a supprimer
If (hHwnd <> 0) Then ' a supprimer
SendMessage(hHwnd, WM_CAP_DRIVER_CONNECT, iDevice, 0) ' a supprimer
SendMessage(hHwnd, WM_CAP_SET_SCALE, True, 0)
SendMessage(hHwnd, WM_CAP_SET_PREVIEWRATE, 66, 0)
SendMessage(hHwnd, WM_CAP_SET_PREVIEW, True, 0)
SetWindowPos(hHwnd, HWND_BOTTOM, 0, 0, 370, 250, SWP_NOMOVE Or SWP_NOZORDER)
Else
DestroyWindow(hHwnd)
End If
End Sub |
