How to run the garyscale in powerpoint on button click

hi,

i want run grayscale on button click , change font color white in single go.

regards,

lateef sofi

>>>i want run grayscale on button click , change font color white in single go.

according description, want below ?

if want in vsto add-ins, refer below code:

set mydocument = activepresentation.slides(1)  each shp in mydocument.shapes        shp.blackwhitemode = msoblackwhiteblack  next

in meanwhile if want in office add-ins, think couldn't it.

for more information, click here refer shape.blackwhitemode property (powerpoint)

Microsoft Office for Developers , Apps for Office and SharePoint > Developing Apps for Office 2013

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