ReadFile() is a Windows API function to read data from the specified file or input/output (I/O) device. Reads occur at the position specified by the file pointer if supported by the device.
Questions tagged [readfile]
2383 questions
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write to com port and read answer immediately in c++ windows7
I have a measurment device and want to make a series of measurments and store them to a file.
For this I need to read out the com port properly. All I get back with this code is some weird signs.
#include
#include
#include…
Marek Duchac
- 27
- 5
0
votes
1 answer
python: how to read and process a 18GB csv file?
I have a 18GB csv file from measurement and want to do some calculation based on it. I tried to do it with pandas but seems like it takes forever just to read this file.
Following codes are what I…
Yingqiang Gao
- 939
- 4
- 16
- 29
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votes
1 answer
python: how can I read and process a 18GB csv file?
I have a 18GB csv file from measurement and want to do some calculation based on it. I tried to do it with pandas but seems like it takes forever just to read this file.
Following codes are what I…
Yingqiang Gao
- 939
- 4
- 16
- 29
0
votes
3 answers
Convert Array presented as String
I have a text-file with following data:
[2, 3, 4]
[1, 3, 2]
When i read the file with fs.read i got Strings like this:
'[2,3,4]'
'[1,3,4]'
And because of that the length of my matrix mat is wrong.
Code:
var mat = [];
var fs =…
Sully
- 169
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5 answers
Reading a file in python, without skipping the first number
I need to write a program, in Python, that looks at a list of numbers in a separate text file, and does the following: Displays all the numbers from the file, adds the total of all the numbers, tells me how many numbers are in the file. My problem…
Whitekong
- 21
- 1
- 5
0
votes
1 answer
Php File Size header()
$file_name = $_GET['name'];
$file_url = $_GET['file-url'] . $file_name;
header('Content-Type: application/octet-stream');
header("Content-Transfer-Encoding: Binary");
header("Content-disposition: attachment; filename=\"".$file_name."\"");…
user8383072
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votes
1 answer
Cannot import csv file into R
I'm trying to import the csv files from my working directory. There are 3 such files, but for some reason R insists on recognizing only one of them. I can't determine what the pattern is, and if the recognized file is moved out of the folder then…
Rookatu
- 1,487
- 3
- 21
- 50
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votes
1 answer
PrintReader returns unreadable characters
i built a program that reads xml files an when i run it in netbeans it works and characters are readable look to the imageopening in netbeans
but when i run it from dist folder its works but when i try to open folder that containing arabic language…
رامي عبد الله
- 329
- 2
- 11
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0 answers
Direct Disk Access: WinAPI WriteFile seems to fail on partitions larger than 2147483647 (7FFF FFFF) sectors
I wrote a small program in VB .Net to physically sort folder entries on FAT partitions (see http://www.public.bplaced.net). To do this, I use API calls to Kernel32.dll. I open the partition with CreateFileA, use the handle to lock the drive with…
N00b
- 29
- 5
0
votes
1 answer
How to read entire file with vfs_read in kernel module?
I have to read an entire file in a buffer inside a kernel module I'm writing. I started following as written here
but, I'm not clear how to retrieve the file size, to allocate the memory for the array buffer. I could not find a good documentation of…
user3376554
- 19
- 2
- 5
0
votes
0 answers
PHP readfile() displays the file contents instead of forcing the browser to download the file
This is my first time trying to send a file to the user using php and I have the following setup:
if (file_exists($fullPath)) {
header('Content-type: text/csv');
//Use Content-Disposition: attachment to specify the filename
…
Georgi Angelov
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- 96
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votes
1 answer
Placement of bufferedreader.close()
I am having some trouble in the placement of sections of my code. I am a high school student, and for a project I am making a flashcards app. I am using read/write to store the user's data. I am having trouble on where to close my buffered reader.…
A. Price
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- 1
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votes
2 answers
Download file via PHP
I'm trying to download a zip file without revealing the URL to the user. The file should only be accessible by authorized users.
Currently I'm doing this:
// check authentication and request method etc...
// ...
$file =…
choba
- 41
- 4
0
votes
1 answer
Read Items From Text File Into Combo Box, VB, WPF
I am currently developing a WPF application using the Visual Basic language, I am looking to read a list of items from a standard text file (ObjectNames.txt, stored within the same directory as the application) and enter them into a combo box. I…
Ronan
- 77
- 1
- 8
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votes
3 answers
Issue with Reading two Int values from a file
I have file with the below data
A,8,43
B,7,42,
C,9,34
I am using the below code to read the data
Scanner input = new Scanner(new File("D:\\test.txt"));
input.useDelimiter(",|\n");
while(input.hasNext()) {
String name = input.next();
int…
user7076183
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