视频捕捉/采集

开发平台：

Visual C++

Unit1.~cpp：源码内容

							//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
#include "vfw.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  char szDeviceName[80];
  char szDeviceVersion[80];
  for (int wIndex=0;wIndex<10;wIndex++)
  {
    if (capGetDriverDescription(wIndex,szDeviceName,sizeof(szDeviceName),szDeviceVersion,sizeof(szDeviceVersion)))
        {
            Camera->Items->Add(szDeviceName);
        }
    }
    if(Camera->Items->Count>0)
        Camera->ItemIndex=0;
    else
    {
        ShowMessage("There is no camera!");
        Close();
    }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
HWND hWndC=capCreateCaptureWindow((LPSTR)"My Capture Window",WS_CHILD | WS_VISIBLE,0,0,160,120,(HWND)Panel2->Handle,Camera->ItemIndex+1);
  //连接设备：
  capDriverConnect(hWndC,0);
  capPreviewRate(hWndC,50); // rate, in milliseconds
  capPreview(hWndC,TRUE); // starts preview
  //获取视频驱动相关性能
  CAPDRIVERCAPS     CapDrvCaps;
  capDriverGetCaps(hWndC,&CapDrvCaps,sizeof(CAPDRIVERCAPS));
  //获取捕获窗口状态
  CAPSTATUS      CapStatus ;
  capGetStatus(hWndC,&CapStatus,sizeof(CAPSTATUS));
  SetWindowPos(hWndC,NULL,0,0,CapStatus.uiImageWidth,CapStatus.uiImageHeight,SWP_NOZORDER | SWP_NOMOVE);
//文章出处：DIY部落(http://www.diybl.com/course/3_program/c++/cppsl/20071128/87976.html#)
}
//---------------------------------------------------------------------------

						