José Luiz Posted October 22, 2011 Report Share Posted October 22, 2011 Pesquisando no Fórum, encontrei um programa para gerenciamento da WebCam.O programa funciona perfeitamente, porém não sei como desligar a câmera.Eu ligo a WebCam ao entrar no Form, e gostaria de desligá-la ao sair.Como faço para desligar a WebCam ao fechar o Form ?Rotina utilizada.{$R *.dfm} const WM_CAP_START = WM_USER ; const WM_CAP_STOP = WM_CAP_START + 68; const WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10; const WM_CAP_DRIVER_DISCONNECT = WM_CAP_START + 11; const WM_CAP_SAVEDIB = WM_CAP_START + 25; const WM_CAP_GRAB_FRAME = WM_CAP_START + 60; const WM_CAP_SEQUENCE = WM_CAP_START + 62; const WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20; const WM_CAP_SEQUENCE_NOFILE = WM_CAP_START + 63; const WM_CAP_SET_OVERLAY = WM_CAP_START + 51; const WM_CAP_SET_PREVIEW = WM_CAP_START + 50; const WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START + 6; const WM_CAP_SET_CALLBACK_ERROR = WM_CAP_START + 2; const WM_CAP_SET_CALLBACK_STATUSA = WM_CAP_START + 3; const WM_CAP_SET_CALLBACK_FRAME = WM_CAP_START + 5; const WM_CAP_SET_SCALE = WM_CAP_START + 53; const WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52; function capCreateCaptureWindowA ( lpszWindowName : PCHAR; dwStyle : longint; x : integer; y : integer; nWidth : integer; nHeight : integer; ParentWin : HWND; nId : integer ) : HWND; STDCALL; EXTERNAL 'AVICAP32.DLL'; procedure TForm1.FormShow(Sender: TObject); begin hWndC := capCreateCaptureWindowA ( 'WebCam', WS_CHILD or WS_VISIBLE, Panel10.Left, Panel10.Top, 320, 240, Form1.Handle, 0 ); if hWndC <> 0 then begin SendMessage ( hWndC, WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0, 0 ); SendMessage ( hWndC, WM_CAP_SET_CALLBACK_ERROR , 0, 0 ); SendMessage ( hWndC, WM_CAP_SET_CALLBACK_STATUSA , 0, 0 ); SendMessage ( hWndC, WM_CAP_DRIVER_CONNECT , 0, 0 ); SendMessage ( hWndC, WM_CAP_SET_SCALE , 1, 0 ); SendMessage ( hWndC, WM_CAP_SET_PREVIEWRATE , 66, 0 ); SendMessage ( hWndC, WM_CAP_SET_OVERLAY , 1, 0 ); SendMessage ( hWndC, WM_CAP_SET_PREVIEW , 1, 0 ); end;Se eu fecho o From sem desligar a WebCam, ao entrar novamente, dá erro.Obrigado,José Luiz. Quote Link to comment Share on other sites More sharing options...
0 Jhonas Posted October 22, 2011 Report Share Posted October 22, 2011 coloque o código completo, para poder analisar e te ajudaroutra sugestão:use esse componentehttp://mrbool.devmedia.com.br/Novo/Revista...adriano-cam.zipe use esse códigoprocedure TForm1.Button1Click(Sender: TObject); var p : ^TTabImage; begin // ativar a camera Camera1.Actif:=True; New(p); end; procedure TForm1.Button2Click(Sender: TObject); var p : ^TTabImage; begin // desativar a camera Camera1.Actif:=False; New(p); end;Dica do forum ActiveDelphihttp://www.activedelphi.com.br/forum/viewt...437c4b01c18d6acabraço Quote Link to comment Share on other sites More sharing options...
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José Luiz
Pesquisando no Fórum, encontrei um programa para gerenciamento da WebCam.
O programa funciona perfeitamente, porém não sei como desligar a câmera.
Eu ligo a WebCam ao entrar no Form, e gostaria de desligá-la ao sair.
Como faço para desligar a WebCam ao fechar o Form ?
Rotina utilizada.
Se eu fecho o From sem desligar a WebCam, ao entrar novamente, dá erro.
Obrigado,
José Luiz.
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