MakeITable

Generates an inverse table

#include <Quickdraw.h> Color Manager

void MakeITable( colorTab, inverseTab, res );

CTabHandle colorTab ; handle to source color table

ITabHandle inverseTab ; handle to inverse color table

short res; value indicating resolution of inverse table

MakeITable creates an inverse color table from the source table's current

contents.

colorTab is a handle to a ColorTable.

inverseTab is the inverse color table created from the active gDevice's color

table.

res is the inverse table's resolution in res bits per channel.

Notes: MakeITable returns an error through QDError if resolution falls below

3 or exceeds 5. Your application can pass a NIL parameter to CTabHandle or

ITabHandle if you want to exchange the tested parameters for an

appropriate handle from the current gDevice. When you pass 0 for res, you

substitute the gDevice's preferred table resolution. Defaults, explicit

values and NIL parameters can be used freely in any combination.

MakeITable returns an error through QDError if the system can't

obtain enough memory for the inverse color table and memory

requirements in the application heap can be substantial. It takes an amount

twice the size of the table, as well as a fixed overhead of 3 to 15K bytes for

each inverse table each inverse table resolution. Memory allocation is

controlled by an internal system resource, 'mitq' .

Referenced by (12):