CODEWITHSUNDEEP
c#.netvstopowerpointpowerpoint-2010
tomor
tomor

Reputation: 1765

Open a powerpoint presentation and hide the window

I am trying to open a PowerPoint presentation, and have it hidden. I am doing it this way: 

app = new Microsoft.Office.Interop.PowerPoint.Application();
string presentation = "C:\\presentation.pptx";

Presentation p = app.Presentations.Open(presentation, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoFalse);

It is the simplest thing, yet I receive an error saying:

Application (unknown member) : Invalid request. There is no active presentation.

However, if I switch the last parameter (which is the WithWindow parameter) to MsoTriState.msoTrue, the presentation opens fine.

Upvotes: 2

Views: 5599

Answers (3)

VingtCent
VingtCent

Reputation: 1942

I've tried this one, and it works:

Presentation p = app.Presentations.Open(presentation,0, 0, 0);

Upvotes: 1

opewix
opewix

Reputation: 5083

The code provided in the question works correctly, but there is an important note:

In C# you have to leave Application.Visible property with it's default value:

var application = new Application();
var document = application.Presentations.Open(fileName, MsoTriState.msoFalse, MsoTriState.msoFalse, 
    WithWindow: MsoTriState.msoFalse);

If you explicitly set Application.Visible property to MsoTriState.msoFalse you will get "Hiding the application window is not allowed" error.

Upvotes: 3

Matt Fitzmaurice
Matt Fitzmaurice

Reputation: 1426

Do you have any other add-ins that might be causing that error? I ran your code (from VBA) and it ran fine.

Upvotes: 1

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