CaptureImage Method (original) (raw)
Summary
Captures a video image to a System.Drawing.Image object.
Syntax
public virtual Image CaptureImage() public:
virtual Image^ CaptureImage();
Return Value
captured video image as a System.Drawing.Image.
Example
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CaptureImageExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
string inFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_Source.avi");
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_CaptureImageExample.jpg");
try
{
// set the video capture device, use your capture device name here
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
capturectrl.VideoDevices["USB"].Selected = true;
// capture the image
Image image = capturectrl.CaptureImage();
if (image != null)
image.Save(outFile, ImageFormat.Jpeg);
// stop the capture
capturectrl.StopCapture();
// check for the capture file and set the result
if (File.Exists(Path.Combine(Directory.GetCurrentDirectory(), outFile)))
_result = true;
}
catch (Exception)
{
_result = false;
}
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (capturectrl.State == CaptureState.Running)
Application.DoEvents();
}
public void CaptureImage_Helper(object sender, EventArgs e)
{
// set result
_result = true;
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS23\Media";
}