TRVExtraItemProperty Type

Property

Applicable To

Default Value

Meaning

rvepUnknown

Not a property. For internal use.

rvepVShift

▪pictures

▪hot-pictures

▪controls

▪bullets

▪hotspots

0

Vertical offset, in % of item height (default), or in RVStyle.Units (see rvepVShiftAbs).

Negative values move the item down, positive move it up (relative to the position specified in VAlign)

rvepVShiftAbs

▪pictures

▪hot-pictures

▪controls

▪bullets

▪hotspots

0

If non-zero, rvepVShift defines vertical offset in RVStyle.Units instead of %.

rvepImageWidth, rvepImageHeight

▪pictures

▪hot-pictures

0

If set to positive value, define size of the image in RVStyle.Units. The actual image is not modified, it is just drawn stretched.

See also rvepAnimationInterval property below.

rvepTransparent, rvepTransparentMode, rvepTransparentColor

▪pictures

▪hot-pictures

(if they are TBitmap)

Correspond to properties of TBitmap: Transparent, TransparentMode, TransparentColor.

Limitations:

▪transparency is turned off in 256-color mode;

▪transparency is not supported when printing (although print preview shows transparent bitmaps)

▪TBitmap implementation of transparency is not ideal; sometimes it may cause weird colors for 256-color images (probably, it was fixed in last versions of Delphi)

rvepMinHeightOnPage

▪pictures

▪hot-pictures

0

Affects printing, allows printing large pictures on several pages. Positive value defines minimal height of part of image allowed to be on page.

For example:

▪1 – the image can be printed on two or more pages, it can separated between pages in any place;

▪100 – if the rest of page can contain >= 100 pixels of the image, the image will be separated, otherwise it will be printed on single page;

▪ 0 – the image/control will be printed on single page.

Do not overuse this feature, it has limitations:

▪such images/controls are always printed from new line;

▪for control, OnPrintComponent must return bitmap having exactly the size of the control (if this property = 0, you can return larger bitmap and it will be stretched allowing to create a better printing output)

rvepSpacing

▪pictures

▪hot-pictures

▪controls

▪bullets

▪hotspots

1

Spacing around the item, in RVStyle.Units. Must be a positive value.

Default value is 1 (for backward compatibility; very probably, it will be changed to 0).

rvepResizable

▪pictures

▪hot-pictures

▪controls

1 (for pictures and hot-pictures),

0 (for controls).

Allows resizing with mouse

▪0 – no resizing;

▪non-zero value – resizing is allowed.

rvepDeleteProtect

all non-text items

0

▪0 – no protection;

▪non-zero value – item cannot be deleted in editing operations.

See also: rvprDeleteProtect option of Protection for text style.

rvepNoHTMLImageSize

▪pictures

▪hot-pictures

▪bullets

▪hotspots

▪list markers

0

If non-zero, image size is not saved in HTML, even if rvsoImageSizes is included in the Options parameter for SaveHTML/SaveHTMLEx

This option is ignored for pictures and hot-pictures, if rvepImageWidth or rvepImageHeight properties are non-zero.

rvepAnimationInterval

▪pictures

▪hot-pictures

(if they are TBitmap)

0

Animation delay in 1/100 of second.

If nonzero and rvepImageWidth and/or rvepImageHeight are defined, playing bitmap animation (in imagewidth x imageheight frame)

rvepVisible

▪controls

1

Set to 0 to hide the control (it still occupies its place, but is not displayed)

rvepHidden

all non-text items

0

If non-zero, this item is hidden.

rvepShared

▪pictures

▪hot-pictures

▪controls

0

If non-zero, the item content (picture or control) is not deleted when the item is deleted.