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A Bitmap item is a rectangular image made up of pixels arranged in columns and rows.
Bitmap items may be inserted into a dataset using Insert from File or as datasets using Add Overlay
Properties
- Bitmap file: _bmpfile$
The file containing the Bitmap. Bitmap items which do not use linked files leave this property empty. - Bitmap type: _classDib$
The type of image this Bitmap tem displays. - Colour depth: _depth&
The number of bits defining each pixel in a Bitmap. The more depth a Bitmap has, the more colours it can show simultaneously. - Compression: _compression#
The compression which has been applied to the Bitmap data. Uncompressed Bitmap items have a compression of 1, and JPEG Bitmapitems can have a compression as small as 0.1. - Height: _height&
The number of rows in the Bitmap item. - Resample method: _resample&
The method a Bitmap or Grid item uses when pixel values need to be resampled. - Resolution: _resolution#
The resolution of a Polygon, QZone, or Bitmap item. - Transparent: _transparentColour$ /_alphaTransparency&
Is the Bitmap item transparent? If transparent, any light coloured pixels will not obscure the graphics which are underneath. Some displays and printers do not fully support transparency. - Width: _width&
The number of pixels in each row of a Bitmap.
The value is the resolution of the invisible cached QZone item. If there is no cached QZone item, the Polygon item's resolution is reported as zero.
A QZone item is made up of progressively smaller squares. Its resolution is the size of the smallest QZone square. The resolution of a Bitmap item is the size of each pixel.