Unit: 
SDL_numio 
Class: 
TNumIO2 
Declaration: 
property InputFormat: TInFormat; 
The property InputFormat determines the format of the numeric data accepted by the edit box:
itInt 
Integer numbers. 
itFloat 
Floating point numbers. 
itFixPoint 
Fixed point decimal numbers. The number of decimal places is determined by the property FixPointDecPlaces. 
itExp 
Exponential notation. The number of significant digits is controlled by the property SignificantDigits. 
itBin 
Binary format. 
itOct 
Octal format. 
itHex 
Hexadecimal format. 
itDynamic 
Leaves the choice of the numeric format to the user. Any of the above formats may be used. Binary, octal, or hexadecimal values may be entered by using one of the following prefix characters: % for binary numbers, & for octal, and $ for numbers. Negative numbers may only be entered using a decimal format.

Hint: 
In the Light Edition the formats itBin, itOct, and itHex are not available. 
