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Unit RVItem;
type
TRVExtraItemProperty =
(rvepUnknown, rvepVShift, rvepVShiftAbs,
rvepImageWidth, rvepImageHeight,
rvepTransparent, rvepTransparentMode,
rvepTransparentColor, rvepMinHeightOnPage,
rvepSpacing, rvepResizable,
rvepDeleteProtect, rvepNoHTMLImageSize,
rvepAnimationInterval, rvepVisible);
Identifies item property of integer type.
Property
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Applicable To
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Default Value
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Meaning
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rvepUnknown
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Not a property. For internal use.
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rvepVShift
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0
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Vertical offset, in % of item height (default), or in pixels (see rvepVShiftAbs).
Negative values move the item down, positive move it up (relative to the position specified in VAlign)
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rvepVShiftAbs
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0
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If non-zero, rvepVShift defines vertical offset in pixels instead of %.
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rvepImageWidth, rvepImageHeight
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0
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If set to positive value, define size of the image. The actual image is not modified, it is just drawn stretched.
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rvepTransparent, rvepTransparentMode, rvepTransparentColor
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(if they are TBitmap)
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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) |
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rvepMinHeightOnPage
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0
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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) |
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rvepSpacing
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1
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Spacing around the item. Must be a positive value.
Default value is 1 (for backward compatibility; very probably, it will be changed to 0).
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rvepResizable
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1 (for pictures and hot-pictures),
0 (for controls).
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Allows resizing with mouse
| ▪ | non-zero value – resizing is allowed. |
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rvepDeleteProtect
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all non-text items
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0
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| ▪ | non-zero value – item cannot be deleted in editing operations. |
See also: rvprDeleteProtect option of Protection for text style.
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rvepNoHTMLImageSize
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0
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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.
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rvepAnimationInterval
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(if they are TBitmap)
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0
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Animation delay in 1/100 of second.
If nonzero and rvepImageWidth and/or rvepImageHeight are defined, playing bitmap animation (in imagewidth x imageheight frame)
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rvepVisible
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1
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Set to 0 to hide the control.
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See also
See also methods of TRichView
See also methods of TRichViewEdit
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TRichView Reference | Types