Full Name	Windows cursor
Format ID	ImGearFormats.CUR
File Extension(s)	*.cur
Data Type	Raster image
Data Encoding	Binary
Multi-Page Support	Yes
Alpha Channel Support	Single alpha channel for read/write (see Comments).
Metadata Update Support	Page
ImageGear Platforms Support	WIN32, WIN64, Unix, Unix64, .NET, .NET64, MAC

ImageGear Supported Versions

Windows 3.x

ImageGear Supported Features

• IGFilterFormatFlags.DETECTSUPPORT - autodetection
• IGFilterFormatFlags.PAGEREADSUPPORT - single page file reading
• IGFilterFormatFlags.MPAGEREADSUPPORT - multi-page file reading
• IGFilterFormatFlags.PAGEINSERTSUPPORT - single-page file writing

ImageGear Read Support

• ImGearCompressions.NONE:
  • Indexed + Extra: 1+1, 4+1, 8+1 bpp;
  • RGB + Alpha: 32 bpp
• ImGearCompressions.RLE:
  • Indexed + Extra: 4+1, 8+1 bpp

ImageGear Write Support

• ImGearCompressions.NONE:
  • Indexed + Extra: 1+1, 4+1, 8+1 bpp;
  • RGB + Alpha: 32 bpp

ImageGear Filter Control Parameters

None

Comments

Cursor files consist of a file header (that is repeated several times), info headers, and cursor data. Cursor data contains an XOR mask bitmap and a monochrome AND mask bitmap. Whenever Windows draws a cursor, the AND bitmap is applied to whatever is on the screen. After that, the XOR bitmap is applied.

References Used

A Jorn Daub EDV-Beratung - Glashutter Weg 105 - D-22889 Tangstedt

fileformats@daubnet.com