IPresentation Interface

The IPresentation interface shows the presentation that is currently open. This interface can be obtained using the IPresentationConverter.Presentation property.

Table 1. Properties

Property	Value Type	Access	Property description
Title	string	Read/Write	The presentation title.
SlideWidth	int	Read/Write	The slide width in pixels.
SlideHeight	int	Read/Write	The slide height in pixels.
XmlDescriptionFile	string	Read/Write	The path to the file where the XML-description of the presentation content will be saved. The file format is described below.
Object	object	Read only	Returns a PowerPoint.Presentation COM object, which provides properties and methods for accessing the presentation.
HasDefaultPresenter	bool	Read only	A Boolean value indicating whether the presentation has a default presenter.
Presenters	IPresenters	Read only	Returns the IPresenters interface that represents a collection of presentation presenters.
DefaultPresenter	IPresenter	Read/Write	Returns the IPresenter interface that represents information about the presentation presenter.
Slides	ISlides	Read only	Returns the ISlides Interface that represents a collection of presentation slides.

Table 2. Methods

Method

Method description

void Close()

Closes the presentation.

void RemoveDefaultPresenter()

Removes the default presenter.

IPresentationInfo Scan(PresentationScanMode scanMode, object slideRange)

Scan: scans the presentation for external resources.

scanMode: defines which external resources should be searched for while scanning the presentation.

slideRange: defines which slides should be examined in search of resources. This parameter is described in PresentationConverter.GenerateHtml5Presentation() Method. Passes empty string or null for all slides.

C# - Scanning the presentation for external resources

using System;
using iSpring;

namespace PresentationSample
{
class Program
{
    static void Main(string[] args)
    {
        IPresentationConverter converter = new PresentationConverter();
        converter.OpenPresentation("c:\\external_videos.pptx");
        IPresentationInfo presentationInfo = converter.Presentation.Scan(PresentationScanMode.PSM_DEFAULT, "0-8");
        foreach (IExternalResource res in presentationInfo.ExternalResources)
        {
            string resType = res.Type == ExternalResourceType.ERT_VIDEO_SHAPE ? "Video" : "Audio";
            string resStatus = 
                res.Status == ExternalResourceStatus.ERS_FOUND_BY_ABSOLUTE_PATH ? "found by absolute path" :
                res.Status == ExternalResourceStatus.ERS_FOUND_BY_RELATIVE_PATH ? "found by relative path" :
                "not found";
            Console.WriteLine($"Resource {res.Path}\n\t{resType} {resStatus}");
            Console.WriteLine();
        }
    }
}
}

C#

XML Description format

<?xml version="1.0"?>
<presentation title="Sample presentation" width="960.0000000" height="540.0000000" frameRate="24.0000000" duration="994.5070243">
	<slides>
		<slide index="1" slideId="466" animationStepsCount="1" hidden="0" advanceOnClick="1" advanceOnTime="0" duration="10.5000005" src="data/slide1.js" title="Hello World">
			<notes>Slide notes</notes>
			<notesHtml><i>Slide notes</i></notesHtml>
			<text>Hello World</text>
		</slide>
	</slides>
</presentation>

CODE