Pascal open file for writing

WriteByte 68 ; msApp. WriteAnsiString 'Some extra text' ; msApp. Create ; FileStream. Create ; try MemBuffer. Free end ; begin If FileCopy fSource , fTarget then writeln 'File ' , fSource , ' copied to ' , ftarget else writeln 'File ' , fSource , ' not copied to ' , ftarget ; readln end.

Add 'An extra line appended to the text' ; slInfo. Add 'And another one. Add 'Let '' s stop here. Reason: ' , E. Create filePath , fmCreate ; fsOut. Write theString [ 1 ] , length theString ; fsOut. ClassName , ': ' , E. Categories : Code File Handling Tutorials. Personal tools Create account Log in. There are huge numbers of examples. Pretty much any console app that accepts filenames as arguments. If you've ever used such a tool, and I am sure you have, then you will have just typed in the filename without the path.

DavidHeffernan: Oh, ok, I get what you mean now. Is the file created? What size in bytes is the file? Did you get any error messages? As you see, there are plenty of details that may shed some more light on the actual problem, instead of a dull "doesn't work" — Tom Brunberg. Show 9 more comments. The Overflow Blog. Podcast Helping communities build their own LTE networks. Let's say that we are interested in reading a file, provided by a command line argument after a switch, containing substitution weights for characters.

In a more general setting, when the first two entries can be longer strings, we can use ExtractWord that finds n th whitespace-separated word in a string, or ExtractSubstr that treats several whitespaces together as introducing an empty word , and convert the third one into a number. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Reading a file in FreePascal Ask Question. Asked 9 years, 9 months ago. Active 8 years, 10 months ago. Viewed 11k times. For instance q w 1. A unit is like a library in Pascal.

If there are no errors in your code, the command prompt will take you to the next line and would generate hello executable file and hello.

You will be able to see "Hello World" printed on the screen and program waits till you press any key. Make sure that free pascal compiler fpc is in your path and that you are running it in the directory containing source file hello.