GESCAPE Statement

The GESCAPE statement exchanges device-specific information with a graphic device. It is specified as follows:

GESCAPE device-selector, code [,param(*)][;return(*)]

The device selector specifies the graphic device. The code value specifies the type of operation. The param array sends information to the device and the return array receives information from the device. The type, size, and shape of the arrays must be appropriate for the requested operation.

Code	Description
1	returns number of color map entries
2	returns color map values
3	returns hard-clip values
4	sets normal drawing mode
5	sets alternate drawing mode
6	returns graphic display mask
7	sets graphic display mask
102	returns the current VIEWPORT and WINDOW
103	returns the current PEN and AREA PEN assignments
104	sets PLOTTER device specific variables
105	sets GRAPHICS INPUT device specific variables
106	sets DUMP device specific variables