Class: TEgDBGridEx
property ShowImageOverGraphic: Boolean default False;Whether a column’s data-cell ImageIndex icon (not the
field’s own graphic/BLOB content) is drawn as an overlay on top of that
content once it decodes into a real image.
False (the default) fully suppresses the icon whenever
the field’s own content actually decodes and draws as an image - the
icon only shows for the fallback case (field Null, or
content that failed to decode), same as any other column kind.
True draws the icon as an overlay on top of the decoded
image instead, at its normal ImageAlignment/horizontal
and CellVAlign/vertical
position - there is no automatic placement adjustment to keep the two
apart, so the icon may overlap the image when both are shown. This
property is a plain opt-in, not a collision-avoidance mechanism; if the
icon and the image would occupy the same space, arrange it so they don’t
(for example, via ImageAlignment), or leave this property
False.
Only meaningful for a graphic/BLOB column (IsGraphic - a
true ftGraphic field, or an ftBlob field with
DetectBlobImages
enabled) that actually decodes an image; every other column kind, and
the fallback case above, are unaffected either way. OnCellImageClick
fires correctly for a click on the overlay icon when this property is
True, same as for the fallback icon.
Overridable per column - see TEgColumn.ShowImageOverGraphic.