Hallo Autoit community,
ich versuche mich nun seid 2 Wochen an Autoit. Nun habe ich versucht eine kleine Webcam Anwendung zu schreiben. Leider ist es mir nicht möglich das mit Hilfe der UDF von Ludocus erstellte Preview innerhalb der Form wieder auszublenden. Es bleibt bei mir immer ein schwarzer Kasten in der Größe des Preview Fensters. Ich wäre wirklich für jeden Tipp dankbar.
Die Form sieht so aus.
[autoit]
#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Webcam.au3>
$Form1 = GUICreate("Webcam Test", 320, 280, 192, 114)
$Button1 = GUICtrlCreateButton("Webcam ausblenden", 3, 250, 115, 25, $WS_GROUP)
GUISetState(@SW_SHOW)
;init
$webcamId = _WebcamOpen($Form1, 0, 0, 320, 240)
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
Case $Button1
GUIDelete($webcamId)
$return = _WebcamClose($webcamId)
EndSwitch
WEnd
und die webcam.au3 so
[autoit]
#include <WindowsConstants.au3>
#include-once
$WM_CAP_START = 0x400
$WM_CAP_UNICODE_START = $WM_CAP_START + 100
$WM_CAP_PAL_SAVEA = $WM_CAP_START + 81
$WM_CAP_PAL_SAVEW = $WM_CAP_UNICODE_START + 81
$WM_CAP_UNICODE_END = $WM_CAP_PAL_SAVEW
$WM_CAP_ABORT = $WM_CAP_START + 69
$WM_CAP_DLG_VIDEOCOMPRESSION = $WM_CAP_START + 46
$WM_CAP_DLG_VIDEODISPLAY = $WM_CAP_START + 43
$WM_CAP_DLG_VIDEOFORMAT = $WM_CAP_START + 41
$WM_CAP_DLG_VIDEOSOURCE = $WM_CAP_START + 42
$WM_CAP_DRIVER_CONNECT = $WM_CAP_START + 10
$WM_CAP_DRIVER_DISCONNECT = $WM_CAP_START + 11
$WM_CAP_DRIVER_GET_CAPS = $WM_CAP_START + 14
$WM_CAP_DRIVER_GET_NAMEA = $WM_CAP_START + 12
$WM_CAP_DRIVER_GET_NAMEW = $WM_CAP_UNICODE_START + 12
$WM_CAP_DRIVER_GET_VERSIONA = $WM_CAP_START + 13
$WM_CAP_DRIVER_GET_VERSIONW = $WM_CAP_UNICODE_START + 13
$WM_CAP_EDIT_COPY = $WM_CAP_START + 30
$WM_CAP_END = $WM_CAP_UNICODE_END
$WM_CAP_FILE_ALLOCATE = $WM_CAP_START + 22
$WM_CAP_FILE_GET_CAPTURE_FILEA = $WM_CAP_START + 21
$WM_CAP_FILE_GET_CAPTURE_FILEW = $WM_CAP_UNICODE_START + 21
$WM_CAP_FILE_SAVEASA = $WM_CAP_START + 23
$WM_CAP_FILE_SAVEASW = $WM_CAP_UNICODE_START + 23
$WM_CAP_FILE_SAVEDIBA = $WM_CAP_START + 25
$WM_CAP_FILE_SAVEDIBW = $WM_CAP_UNICODE_START + 25
$WM_CAP_FILE_SET_CAPTURE_FILEA = $WM_CAP_START + 20
$WM_CAP_FILE_SET_CAPTURE_FILEW = $WM_CAP_UNICODE_START + 20
$WM_CAP_FILE_SET_INFOCHUNK = $WM_CAP_START + 24
$WM_CAP_GET_AUDIOFORMAT = $WM_CAP_START + 36
$WM_CAP_GET_CAPSTREAMPTR = $WM_CAP_START + 1
$WM_CAP_GET_MCI_DEVICEA = $WM_CAP_START + 67
$WM_CAP_GET_MCI_DEVICEW = $WM_CAP_UNICODE_START + 67
$WM_CAP_GET_SEQUENCE_SETUP = $WM_CAP_START + 65
$WM_CAP_GET_STATUS = $WM_CAP_START + 54
$WM_CAP_GET_USER_DATA = $WM_CAP_START + 8
$WM_CAP_GET_VIDEOFORMAT = $WM_CAP_START + 44
$WM_CAP_GRAB_FRAME = $WM_CAP_START + 60
$WM_CAP_GRAB_FRAME_NOSTOP = $WM_CAP_START + 61
$WM_CAP_PAL_AUTOCREATE = $WM_CAP_START + 83
$WM_CAP_PAL_MANUALCREATE = $WM_CAP_START + 84
$WM_CAP_PAL_OPENA = $WM_CAP_START + 80
$WM_CAP_PAL_OPENW = $WM_CAP_UNICODE_START + 80
$WM_CAP_PAL_PASTE = $WM_CAP_START + 82
$WM_CAP_SEQUENCE = $WM_CAP_START + 62
$WM_CAP_SEQUENCE_NOFILE = $WM_CAP_START + 63
$WM_CAP_SET_AUDIOFORMAT = $WM_CAP_START + 35
$WM_CAP_SET_CALLBACK_CAPCONTROL = $WM_CAP_START + 85
$WM_CAP_SET_CALLBACK_ERRORA = $WM_CAP_START + 2
$WM_CAP_SET_CALLBACK_ERRORW = $WM_CAP_UNICODE_START + 2
$WM_CAP_SET_CALLBACK_FRAME = $WM_CAP_START + 5
$WM_CAP_SET_CALLBACK_STATUSA = $WM_CAP_START + 3
$WM_CAP_SET_CALLBACK_STATUSW = $WM_CAP_UNICODE_START + 3
$WM_CAP_SET_CALLBACK_VIDEOSTREAM = $WM_CAP_START + 6
$WM_CAP_SET_CALLBACK_WAVESTREAM = $WM_CAP_START + 7
$WM_CAP_SET_CALLBACK_YIELD = $WM_CAP_START + 4
$WM_CAP_SET_MCI_DEVICEA = $WM_CAP_START + 66
$WM_CAP_SET_MCI_DEVICEW = $WM_CAP_UNICODE_START + 66
$WM_CAP_SET_OVERLAY = $WM_CAP_START + 51
;$WM_CAP_SET_PREVIEW = $WM_CAP_START + 50
$WM_CAP_SET_PREVIEW = $WM_CAP_START + 50
$WM_CAP_SET_PREVIEWRATE = $WM_CAP_START + 52
$WM_CAP_SET_SCALE = $WM_CAP_START + 53
$WM_CAP_SET_SCROLL = $WM_CAP_START + 55
$WM_CAP_SET_SEQUENCE_SETUP = $WM_CAP_START + 64
$WM_CAP_SET_USER_DATA = $WM_CAP_START + 9
$WM_CAP_SET_VIDEOFORMAT = $WM_CAP_START + 45
$WM_CAP_SINGLE_FRAME = $WM_CAP_START + 72
$WM_CAP_SINGLE_FRAME_CLOSE = $WM_CAP_START + 71
$WM_CAP_SINGLE_FRAME_OPEN = $WM_CAP_START + 70
$WM_CAP_STOP = $WM_CAP_START + 68
#include <GUIConstants.au3>
$avi = DllOpen("avicap32.dll")
$user = DllOpen("user32.dll")
;===============================================================================
;
; Description: Open's a webcam preview screen in your gui
; Syntax: _WebcamOpen($sHwnd, $sLeft, $sTop, $sWidth, $sHeight, $sPort=0)
; Parameter(s): $sHwnd - The handle of the gui
; $sLeft - Left coord. of the preview screen
; $sTop - Top coord. of the preview screen
; $sWidth - Width of the preview screen
; $sHeight - Height of the preview screen
; $sPort - Specify wich webcam port you want to use (for multiple webcams)
; Requirement(s): A webcam
; Return Value(s): On Success - Returns id needed for other controls
; On Failure - Returns -1
; Author(s): Ludocus
; Note(s): If a black/blank screen shows up, try using different $sPort's (0 to 3)
;
;===============================================================================
Func _WebcamOpen($sHwnd, $sLeft, $sTop, $sWidth, $sHeight, $sPort = 0)
$cap = DllCall($avi, "int", "capCreateCaptureWindow", "str", "cap", "int", BitOR($WS_CHILD, $WS_VISIBLE), "int", $sLeft, "int", $sTop, "int", $sWidth, "int", $sHeight, "hwnd", $sHwnd, "int", 1)
DllCall($user, "int", "SendMessage", "hWnd", $cap[0], "int", $WM_CAP_DRIVER_CONNECT, "int", $sPort, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $cap[0], "int", $WM_CAP_SET_SCALE, "int", 1, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $cap[0], "int", $WM_CAP_SET_OVERLAY, "int", 0, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $cap[0], "int", $WM_CAP_SET_PREVIEW, "int", 1, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $cap[0], "int", $WM_CAP_SET_PREVIEWRATE, "int", 1, "int", 0)
If @error Then Return -1
Return $cap[0]
EndFunc ;==>_WebcamOpen
;===============================================================================
;
; Description: Creates a Snapshot from a webcam
; Syntax: _WebcamSnap($sId, $sFile)
; Parameter(s): $sId - Id (returned from _WebcamOpen)
; $sFile - File to save the snapshot to (*.bmp)
; Requirement(s): A webcam
; Return Value(s): On Success - Returns 1
; On Failure - Returns 0
; Author(s): Ludocus
; Note(s): None
;
;===============================================================================
Func _WebcamSnap($sId, $sFile)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_SET_CALLBACK_FRAME, "int", 0, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_GRAB_FRAME_NOSTOP, "int", 0, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_FILE_SAVEDIBA, "int", 0, "str", $sFile)
If @error Then
Return 0
Else
Return 1
EndIf
EndFunc ;==>_WebcamSnap
;===============================================================================
;
; Description: Closes the preview screen created with _WebcamOpen
; Syntax: _WebcamClose($sId)
; Parameter(s): $sId - Id (returned from _WebcamOpen)
; Requirement(s): A webcam
; Return Value(s): On Success - Returns 1
; On Failure - Returns 0
; Author(s): Ludocus
; Note(s): None
;
;===============================================================================
Func _WebcamClose($sId)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_END, "int", 0, "int", 0)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_DRIVER_DISCONNECT, "int", 0, "int", 0)
DllClose($user)
If @error Then
Return 0
Else
Return 1
EndIf
EndFunc ;==>_WebcamClose
;===============================================================================
;
; Description: Starts recording the webcam to a file
; Syntax: _WebcamRecordStart($sFile, $sId)
; Parameter(s): $sId - Id (returned from _WebcamOpen)
; $sFile - File to save the movie to (*.avi)
; Requirement(s): A webcam
; Return Value(s): On Success - Returns 1
; On Failure - Returns 0
; Author(s): Ludocus
; Note(s): Stop recording by: _WebcamRecordStop($Id)
;
;===============================================================================
Func _WebcamRecordStart($sFile, $sId)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_FILE_SET_CAPTURE_FILEA, "int", 0, "str", $sFile)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_SEQUENCE, "int", 0, "int", 0)
If @error Then
Return 0
Else
Return 1
EndIf
EndFunc ;==>_WebcamRecordStart
;===============================================================================
;
; Description: Stops recording.
; Syntax: _WebcamRecordStop($sId)
; Parameter(s): $sId - Id (returned from _WebcamOpen)
; Requirement(s): A webcam
; Return Value(s): On Success - Returns 1
; On Failure - Returns 0
; Author(s): Ludocus
; Note(s): None
;
;===============================================================================
Func _WebcamRecordStop($sId)
DllCall($user, "int", "SendMessage", "hWnd", $sId, "int", $WM_CAP_STOP, "int", 0, "int", 0)
If @error Then
Return 0
Else
Return 1
EndIf
EndFunc ;==>_WebcamRecordStop
Kann es sein das die Webcam UDF den Fehler beinhaltet ?
Lieben Gruss
Carsten
. Ich habe diese mal etwas umgearbeitet und