Leadtools.Multimedia Namespace > VideoFormat Class : Height Property |
public int Height {get;}
'Declaration Public ReadOnly Property Height As Integer
'Usage Dim instance As VideoFormat Dim value As Integer value = instance.Height
public int Height {get;}
get_Height();
This property is updated with the video height in pixels. Use the CaptureCtrl.VideoCaptureFormats property to update the VideoFormats object that contains all of the video formats available for the current capture device. The VideoFormats indexer obtains a VideoFormat object for each of the supported video formats. The VideoFormat properties of each VideoFormat object, obtained using the VideoFormats indexer, are updated with information about that specific video format. This information includes the following information:
Public _form As CaptureCtrlForm = New CaptureCtrlForm() Public _result As Boolean = False Public Sub VideoFormatExample() ' reference the capture control Dim capturectrl As CaptureCtrl = _form.CaptureCtrl Dim count As Integer, compression As Integer = 0, bits As Integer = 0, width As Integer = 0, height As Integer = 0 Dim found As Integer, selected As Integer = -1 ' set a video device, use the name of your device here If Not capturectrl.VideoDevices("USB") Is Nothing Then capturectrl.VideoDevices("USB").Selected = True End If ' reference the videoformats property Dim videoformats As VideoFormats = capturectrl.VideoCaptureFormats Try ' get count of available video formats count = videoformats.Count ' enumerate formats and select one For Each vf As VideoFormat In videoformats ' get the properties bits = vf.BitCount compression = vf.Compression width = vf.Width height = vf.Height ' select the format if it matches some criteria If bits = 16 AndAlso width = 640 AndAlso height = 480 Then vf.Selected = True Exit For End If Next vf ' reset the current item videoformats.Reset() ' get the currently selected format selected = videoformats.Selection ' find a format based on subtype name, width and height (YUY2 320 x 240 video) found = videoformats.IndexOf(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2, 320, 240) ' our found format is not selected, so select it If found <> selected Then videoformats.Selection = found End If ' get the new selected format selected = videoformats.Selection ' set our result based on what we expect _result = (count > 0 AndAlso selected = found) Catch e1 As Exception _result = False End Try End Sub
public CaptureCtrlForm _form = new CaptureCtrlForm(); public bool _result = false; public void VideoFormatExample() { // reference the capture control CaptureCtrl capturectrl = _form.CaptureCtrl; int count, compression = 0, bits = 0, width = 0, height = 0; int found, selected = -1; // set a video device, use the name of your device here if (capturectrl.VideoDevices["USB"] != null) capturectrl.VideoDevices["USB"].Selected = true; // reference the videoformats property VideoFormats videoformats = capturectrl.VideoCaptureFormats; try { // get count of available video formats count = videoformats.Count; // enumerate formats and select one foreach (VideoFormat vf in videoformats) { // get the properties bits = vf.BitCount; compression = vf.Compression; width = vf.Width; height = vf.Height; // select the format if it matches some criteria if (bits == 16 && width == 640 && height == 480) { vf.Selected = true; break; } } // reset the current item videoformats.Reset(); // get the currently selected format selected = videoformats.Selection; // find a format based on subtype name, width and height (YUY2 320 x 240 video) found = videoformats.IndexOf(Constants.MEDIASUBTYPE_YUY2, 320, 240); // our found format is not selected, so select it if (found != selected) videoformats.Selection = found; // get the new selected format selected = videoformats.Selection; // set our result based on what we expect _result = (count > 0 && selected == found); } catch (Exception) { _result = false; } }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2