PictureFormat.Brightness Property (PowerPoint)
Returns or sets the brightness of the specified picture or OLE object. Read/write.
Syntax
expression .Brightness
expression A variable that represents a PictureFormat object.
Return Value
Single
Remarks
The value for this property must be a number from 0.0 (dimmest) to 1.0 (brightest).
Example
This example sets the brightness for shape one on myDocument. Shape one must be either a picture or an OLE object.
Set myDocument = ActivePresentation.Slides(1)
myDocument.Shapes(1).PictureFormat.Brightness = 0.3