有对应的函数么?

解决方案 »

  1.   

    http://hi.baidu.com/hnxyy/blog/item/0a457ecb1ab6a91fbf09e6e4.html
    参考此处
      

  2.   

    http://d.download.csdn.net/down/1704884/haochin
    直接下载下来用就可以了。
    还带矩形截取的。
      

  3.   

    api控制摄像头的代码//////////////// 写个木马主要是精简干练一些 
    ////////////////找了N就  呵呵终于找到 api控制摄像头的代码  哈哈并非原创 好东西共享一下
    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';
    上面的代码就是我们主要用到的一个函数和常量的定义。
    好了,打开你的Delphi,新建一个工程,将上面的定义加上吧。
    新建一个窗口,放个Panel上去,添加一个按钮,Caption设置为"开始"
    这里需要定义一个全局变量,var  hWndC : THandle;
    开始按钮代码如下:
    begin
      hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,Form1.Handle,0);
      hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,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;
    按F9运行一下,怎么样,是不是可以看到摄像头的视屏了?
    那怎么停下来?再加个按钮caption设置成"停止"
    代码如下:
    if hWndC <> 0 then begin
        SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
        hWndC := 0;
    end;
    视屏截到了,怎么把它给保存下来呢?
    下面按两种方式保存,一个是BMP静态图,一个是AVI动画。
    再放三个按钮到窗体上去,caption分别设置成"保存BMP"、"开始录像"、"停止录像"
    三个按钮的代码分别如下:
    //保存BMP
      if hWndC <> 0 then begin
           SendMessage(hWndC,WM_CAP_SAVEDIB,0,longint(pchar('c:\test.bmp')));
      end;
    //开始录像
      if hWndC <> 0 then
      begin
        SendMessage(hWndC,WM_CAP_FILE_SET_CAPTURE_FILEA,0, Longint(pchar('c:\test.avi')));
        SendMessage(hWndC, WM_CAP_SEQUENCE, 0, 0);
      end;
    //停止录像
      if hWndC <> 0 then begin
         SendMessage(hWndC, WM_CAP_STOP, 0, 0);
      end;
    再运行看看吧。。可以保存几张图看看,也可以录成AVI以后慢慢欣赏。
    程序运行效果:
    screen.width-430)this.width=screen.width-430" align=center border=0>
    完整的程序代码如下:
    unit Unit1;
    interface
    uses
      Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
      Dialogs, StdCtrls, ExtCtrls;
    type
      TForm1 = class(TForm)
        Panel1: TPanel;
        Button1: TButton;
        Button2: TButton;
        Button3: TButton;
        Button4: TButton;
        Button5: TButton;
        procedure Button1Click(Sender: TObject);
        procedure Button2Click(Sender: TObject);
        procedure Button3Click(Sender: TObject);
        procedure Button4Click(Sender: TObject);
        procedure Button5Click(Sender: TObject);
        procedure FormClose(Sender: TObject; var Action: TCloseAction);
      private
        hWndC : THandle;
      public
        { Public declarations }
      end;
    var
      Form1: TForm1;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';implementation
    {$R *.dfm}
    procedure TForm1.Button1Click(Sender: TObject);
    begin
      hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,Form1.Handle,0);
      hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,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;
    end;
    procedure TForm1.Button2Click(Sender: TObject);
    begin
      if hWndC <> 0 then begin
        SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
        hWndC := 0;
       end;
    end;
    procedure TForm1.Button3Click(Sender: TObject);
    begin
      if hWndC <> 0 then begin
           SendMessage(hWndC,WM_CAP_SAVEDIB,0,longint(pchar('c:\test.bmp')));
      end;
    end;
    procedure TForm1.Button4Click(Sender: TObject);
    begin
      if hWndC <> 0 then
      begin
        SendMessage(hWndC,WM_CAP_FILE_SET_CAPTURE_FILEA,0, Longint(pchar('c:\test.avi')));
        SendMessage(hWndC, WM_CAP_SEQUENCE, 0, 0);
      end;
    end;
    procedure TForm1.Button5Click(Sender: TObject);
    begin
      if hWndC <> 0 then begin
         SendMessage(hWndC, WM_CAP_STOP, 0, 0);
      end;
    end;
    procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
    begin
      if hWndC <> 0 then begin
        SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
      end;
    end;
    end.注:经调试,录象部分好象不好使
      

  4.   

    这个是要用avicap32.dll的吧?我的机器怎么没有?
    问题在于,就是没有。我摄像头还是可以用。是不是还有其他更直接的。