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GetStillImage Method

Summary

Gets a System.Drawing.Image object during a CaptureMode.Still capture.

Syntax

C++/CLI

public virtual Image GetStillImage( 
   int timeOut 
)

public: 
virtual Image^ GetStillImage(  
   int timeOut 
)

Parameters

timeOut
The maximum time, in milliseconds, to wait for the image.

Return Value

Captured video image as a System.Drawing.Image

Remarks

Gets a System.Drawing.Image object during a CaptureMode.Still capture. If TimeOut is -1, the method's time-out interval never elapses. If the method fails, an error is raised. For more information, refer to the Error Codes.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(false); 
 
public void GetStillImageExample() 
{ 
   // reference the capture control 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   // output file 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_GetStillImageExample.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; 
 
      // set the capture mode to still and start 
      capturectrl.StartCapture(CaptureMode.Still); 
 
      // get a still image 
      Image image = capturectrl.GetStillImage(-1); 
      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; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl Members

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Help Version 23.0.2024.2.29

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies