Remarks (XForms (Forms Library) - Version 1.2 (Rev. 4) A Graphical User Interface Toolkit for X)

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#### 37.8.3 Remarks

See `itest.c` and `ibrowser.c` for example use of the image support in Forms Library. `iconvert.c` is a program that converts between different file formats and does not require an X connection.

Due to access limitations, not all combinations of display depth and bits per pixel (bpp) are tested. Depths of 1 bit (1 bpp), 4 bits (8 bpp), 8 bits (8 bpp), 16 bits (16 bpp), 24 bits (32 bpp), 30 bits (32 bpp) were tested. Although it works in 12 bit PseudoColor mode, due to limitations of the default quantizer the display function does not take full advantage of the larger lookup table. Special provisions were made so a gray12 image will be displayed in 4096 shades of gray if the hardware supports 12-bit grayscale.

If JPEG support (`image_jpeg.c`) is not compiled into the Forms Library, you can obtain the jpeg library source from ftp://ftp.uu.net/graphics/jpeg.