Cannot change colors in a PPT color scheme

Question

I am using VSTO 2010(SP1) runtime and PowerPoint 2007(SP2).

I have some relatively simple code - I want to create a new custom color scheme.

            ColorScheme myScheme = Globals.ThisAddIn.Application.ActivePresentation.ColorSchemes.Add();

            myScheme[PpColorSchemeIndex.ppBackground].RGB = 0xFF0000;
            myScheme[PpColorSchemeIndex.ppForeground].RGB = 0x00FF00;
            myScheme[PpColorSchemeIndex.ppFill].RGB = 0x0000FF;

 

The new color scheme is created and initialized as expected (inherits color settings).

None of the color changes happen - no errors are generated, but the set operations are simply ignored and the color values remain unchanged.    Is this a known problem and, is there a workaround for it ?

 

Answer 1

Hello,

Are you saying that using e.g. mySlide.ColorScheme =  myScheme doesn't work?

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Regards from Belarus (GMT + 2),

Andrei Smolin
Add-in Express Team Leader

Answer 2

No - when I add a color scheme to the active presentation, the add is successful.

The problem is that I should be able to set the colors on the newly created scheme and it does not work. 

Setting the slide scheme to the new scheme works fine - its just that I cannot modify the colors.

Sorry - I should add:   I am using .net 3.5 and C# as well.

Answer 3

Hmm, I've got the same issue in PowerPoint 2010....

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Regards from Belarus (GMT + 2),

Andrei Smolin
Add-in Express Team Leader

Answer 4

Can anyone from the VSTO team chime in on this ?   I have not tried to do this with VBA but there are a lot of Microsoft code samples showing this works.

Answer 5

Hi kelleymike,

 

Thanks for posting in the MSDN Forum.

 

This is my snippet, it works. It seems you do incorrect process to set you color scheme of your presentation.

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Tools.Ribbon;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;
using System.Windows.Forms;

namespace PowerPointAddIn1
{
    public partial class Ribbon1
    {
        private void Ribbon1_Load(object sender, RibbonUIEventArgs e)
        {

        }

        private void button1_Click(object sender, RibbonControlEventArgs e)
        {
            try
            {
                PowerPoint.ColorScheme myScheme = Globals.ThisAddIn.Application.ActiveWindow.View.Slide.ColorScheme;
                myScheme[PowerPoint.PpColorSchemeIndex.ppBackground].RGB = 0xFF0000;
                myScheme[PowerPoint.PpColorSchemeIndex.ppForeground].RGB = 0x00FF00;
                myScheme[PowerPoint.PpColorSchemeIndex.ppFill].RGB = 0x0000FF;
                Globals.ThisAddIn.Application.ActivePresentation.ColorSchemes.Add(myScheme);
                
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Exception-1");
            }
        }
    }
}

 

 

I hope it can help you.

 

Have a good day,

 

Tom

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Tom Xu [MSFT]
MSDN Community Support | Feedback to us