I'm currently using Visual Studio Tools for Office (VSTO) for MS Powerpoint 2013 in Visual C# to create a ribbon.
I want to create a Spinner or Numeric up/down textbox as shown below but I couldn't find any sort of plugin/tools to do this.
It wasn't available in 2007 or 2010 and that doesn't seem to have changed in 2013. That link does have a workaround though, using buttons.
<group id="Group1" label="Group1">
<editBox id="Editbox1" label="Editbox1" getText="Editbox1_getText" onChange="Editbox1_onChange"/>
<box boxStyle="vertical" id="Box1">
<button id="spinUp" label="▲" onAction="spin_onAction"/>
<button id="spinDown" label="▼" onAction="spin_onAction"/>
</box >
</group >
It is fairly common to see controls used by an Office program that aren't available through VSTO, unfortunately.