|
filehandle/stream = a valid variable set with the OpenFile, ReadFile command, or OpenTCPStream (v1.52+)
The value returned is an integer in the range -2147483648 to 2147483647 |
|
Once you've opened a disk file (or stream) for reading, use this command to read a single integer value from the file. Note, each value written uses 4 bytes of space and is written least significant byte first. Reading beyond the end of file does not result in an error, but each value read will be zero.
Streams can only be used in Blitz Basic v1.52 or greater. |
|
; Reading and writing a file using ReadInt and WriteInt functions
; Initialise some variables for the example Int1% = 10 ; store 10 Int2% = 365 ; store 365 Int3% = 2147483647 ; store 2147483647 the largest positive Integer Value in BlitzBasic ) Int4% = - 2147483648 ; store -2147483648 the largest negative Integer Value in BlitzBasic ) ; Open a file to write to fileout = WriteFile("mydata.dat") ; Write the information to the file WriteInt( fileout, Int1 ) WriteInt( fileout, Int2 ) WriteInt( fileout, Int3 ) WriteInt( fileout, Int4 ) ; Close the file CloseFile( fileout ) ; Open the file to Read filein = ReadFile("mydata.dat") Read1 = ReadInt( filein ) Read2 = ReadInt( filein ) Read3 = ReadInt( filein ) Read4 = ReadInt( filein ) ; Close the file once reading is finished CloseFile( filein ) Print "Integer Data Read From File - mydata.dat " Print Read1 Print Read2 Print Read3 Print Read4 WaitKey() |