public event ProgressEventHandler Progress
public:
event ProgressEventHandler^ Progress
The event handler receives an argument of type ProgressEventArgs containing data related to this event. The following ProgressEventArgs properties provide information specific to this event.
Property | Description |
---|---|
percent | The percentage complete for convert progress notifications. |
time | The time elapsed for capture progress notifications. |
The event handler is passed a ProgressEventArgs containing the percentage completed.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void ProgressExample()
{
string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ProgressExample.avi");
// reference the convert control
ConvertCtrl convertctrl = _form.ConvertCtrl;
try
{
// set the input and output files
convertctrl.SourceFile = inFile;
convertctrl.TargetFile = outFile;
// select video and audio compressors for the output
convertctrl.VideoCompressors.H264.Selected = true;
convertctrl.AudioCompressors.AMR.Selected = true;
// set our progress event handler
convertctrl.Progress += new ProgressEventHandler(ConvertCtrl_Progress);
// convert it now!
convertctrl.StartConvert();
}
catch (COMException cex)
{
if (cex.ErrorCode == (int)ErrorCode.VFW_E_WRONG_STATE)
throw cex;
_result = false;
}
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 (convertctrl.State == ConvertState.Running)
Application.DoEvents();
}
public void ConvertCtrl_Progress(object sender, ProgressEventArgs e)
{
// set the result to true if complete
if (e.percent == 100)
_result = true;
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS22\Media";
}
Help Collections
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