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GetModeRange (procedure) (Graph unit)
Lets you ask for the range of valid graphics mode values for a particular device driver.
Declaration
procedure GetModeRange(GraphDriver:Integer; var LoMode, HiMode:Integer);
Target
Real, Protected
Remarks
The output from the following program will be Lowest =0 and Highest = 1. If the value of GraphDriver is invalid, the LoMode and HiMode are set to -1.