IncrementContrast Method [Publisher 2003 VBA Language Reference]
Changes the contrast of the picture by the specified amount.
expression.IncrementContrast(Increment)
expression Required. An expression that returns one of the objects in the Applies To list.
Increment Required Single. Specifies how much to change the value of the Contrast property for the picture. A positive value increases the contrast; a negative value decreases the contrast. Valid values are between – 1 and 1.
Remarks
You cannot adjust the contrast of a picture past the upper or lower limit for the Contrast property. For example, if the Contrast property is initially set to 0.9 and you specify 0.3 for the Increment argument, the resulting contrast level will be 1.0, which is the upper limit for the Contrast property, instead of 1.2.
Use the Contrast property to set the absolute contrast for the picture.
Example
This example increases the contrast for all pictures on the first page of the active publication that aren't already set to maximum contrast.
Dim shpLoop As Shape
For Each shpLoop In ActiveDocument.Pages(1).Shapes
If shpLoop.Type = msoPicture Then
shpLoop.PictureFormat.IncrementContrast Increment:=0.1
End If
Next shpLoop
Applies to | PictureFormat Object