size

Elements' sizes don't update on application loading in Kivy

由 耗尽温柔 提交于 2019-12-23 18:10:34
问题 I have on_size() event, it works when I resize window, but I can't make it work on application loading correctly (it works, but not like it must): from random import random, randint import kivy kivy.require('1.8.0') from kivy.config import Config Config.set('graphics', 'fullscreen', '0') Config.set('graphics', 'width', 640) Config.set('graphics', 'height', 480) Config.set('graphics', 'position', 'custom') Config.set('graphics', 'top', 40) Config.set('graphics', 'left', 40) from kivy.app

How to detect the server space enough for the uploaded file or no?

由 怎甘沉沦 提交于 2019-12-23 17:36:04
问题 I am have uploading site and I want to know how i can know the space of the server via php ? for example: if($_FILES ...) { if($server_rest_space enough for the file){ // upload it! } else{ echo 'no space on your server enough!'; //there is no space!! } important another question if the server is full! and some one uploaded file is there an error will happen ? thank you 回答1: Try to use disk_free_space() 来源： https://stackoverflow.com/questions/7199513/how-to-detect-the-server-space-enough-for

How to get the current view size for an image in Delphi 2009

由 霸气de小男生 提交于 2019-12-23 16:53:38
问题 I wish to get the current size for an image being displayed with TImage, this object has the Proportional property set to True and is aligned to Client with main form. So, when resizing the form I wanna get the current size for that image, not canvas size neither real size for that image. Getting the current size I can show what's the percentage for current image size respect to real image size. Thanks in advance 回答1: You can compare Image1.Picture.Width or .Height with Image1.Width or

What's the optimum size for a class file?

由 余生颓废 提交于 2019-12-23 16:05:41
问题 I know that there is no single "ideal" size of a class file, but still... Are there any data (like studies, not like opinion) on what is the optimum size for a class file? 回答1: I'd say the optimum size would be enough code for the class to do its job. 回答2: Opinion: The smallest possible size that does the job, while maintaining readability but promoting brevity. In academia there is some work on the subject to try and be more formal. 回答3: I wouldn't care about the size of the class file, but

c 字符串常用函数

由 非 Y 不嫁゛ 提交于 2019-12-23 12:14:08
#include <iostream> #include <stdio.h> #include <vector> #include "string.h" using namespace std; int main() { //strlen:一直找到\0 char name[15]="hi,linson."; cout<<strlen(name)<<endl; char name2[3]={'h','\0'}; cout<<strlen(name2)<<endl;// //strcat:从目的\0开始替换.一直到原串的\0 //发现如果目的串长度不够,居然使用后面的空间.看来必须慎用. //src和dest所指内存区域不可以重叠且dest必须有足够的空间来容纳src的字符串。 char name3[6]="start"; // cout<<&name2<<endl; // strcat(name2,name3); // cout<<name2<<&name2<<endl; // // cout<<name<<name2<<name3<<endl; //strncat //比较安全,可以指定长度.用目的串申请的长度-已经占用的长度,再-1(如果原来最后一位是\0,并且需要保留) strncat(name2,name3,3-strlen(name2)-1); cout<<name<<":

Too many elements in an array!

由 陌路散爱 提交于 2019-12-23 10:06:24
问题 Sorry if this is a noob question :( . Piece of C code. int array[5]; int cnt; for(cnt = 0; cnt <= 10; cnt+=1) { array[cnt] = cnt; } Should give an error, right? No! Works fine! But why is that? It seems that -in the first line- an array of more than the double size (11) is defined. You can even access array[5 to 10] later on. And that is confusing me. It stops working when you define array[4 or less] ... Thanks in advance. 回答1: It may happen to work with your particular compiler and computer,

Get Size of HTTP Response in Java

由 守給你的承諾、 提交于 2019-12-23 09:48:08
问题 I would like to know how much data was sent in response to a certain http-request. What I currently do is this: HttpURLConnection con = (HttpURLConnection) feedurl.openConnection(); //check the response for the content-size int feedsize = con.getContentLength(); The problem is, that content-legnth is not always set. E.g. when the server uses transfer-encoding=chunked I get back a value of -1. I do not need this to display progress information. I just need to know the size of the data that was

size of an object reference in Javascript V8

由 余生颓废 提交于 2019-12-23 09:47:42
问题 Does anyone know the size of an object reference in Javascript (V8). It's 8 bytes like in C pointers? Thank you very much. 回答1: Yes, as I remember it takes 8 bytes. Nowadays it's the optimal size in x64 systems for all pointers/references. 来源： https://stackoverflow.com/questions/32538685/size-of-an-object-reference-in-javascript-v8

Allocating a buffer of more a page size on stack will corrupt memory?

由 只谈情不闲聊 提交于 2019-12-23 09:37:12
问题 In Windows, stack is implemented as followed: a specified page is followed committed stack pages. It's protection flag is as guarded. So when thead references an address on the guared page, an memory fault rises which makes memory manager commits the guarded page to the stack and clean the page's guarded flag, then it reserves a new page as guarded. when I allocate an buffer which size is more than one page(4KB), however, an expected error haven't happen. Why? 回答1: Excellent question (+1).

JTextField Fixed Height

由 送分小仙女□ 提交于 2019-12-23 08:57:45
问题 How do I get the JTextField to have a fixed height when the Frame is maximized? I want it to look sort of similar to the Skype application on Ubuntu. private JTextField username; private JPasswordField password; private JLabel usernamelabel; private JLabel passwordlabel; public LoginPanel(){ setSize(200,200); setLayout(new GridLayout(4,4)); setBackground(new Color(85,153,187)); setBorder(BorderFactory.createEmptyBorder(70, 70, 70, 70)); username = new JTextField(); password = new
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