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How to get document height and width without using jquery
...tWidth is it is viewable only. scrollWidth includes things leaking off the screen. at least, this is true for my Chrome experiments in 2019.
– StayCool
Nov 6 '19 at 11:49
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Disable pasting text into HTML form
...input.
Note: This won't work on a console or other system that uses an on-screen keyboard (assuming the on-screen keyboard doesn't send keys to the browser when each key is selected). If it's possible your page/app could be used by someone with an on-screen keyboard and Opera (e.g.: Nintendo Wii, s...
Detecting that the browser has no mouse and is touch-only
...ing text) with a very different interface for touch (your finger hides the screen when you click) and mouse (relies heavily on hover preview).
How can I detect that my user has no mouse to present him the right interface? I plan to leave a switch for people with both mouse and touch (like some noteb...
Difference between SurfaceView and View?
... VSYNC is to consider it is as a timer that fire up every 16ms for a 60fps screen. In Android, all the normal view update (and display actually but I won't talk it today), is synchronized with VSYNC to achieve better smoothness. Now,back to the surfaceView, you can render it anytime as you wish. How...
Could not load NIB in bundle
...lloc init, instead of initWithNibName:bunle:, what you will get is a black screen.
– Robert Childan
Apr 20 '12 at 8:36
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MFC MDI切换menu原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...第二个来源是 CDocument::GetDefaultMenu()，这也是虚拟。它的默认实现将返回 NULL。可以重写此函数允许程序以选择要显示的菜单。
手动更改菜单是通过调用 OnUpdateFrameMenu() 和 DrawMenuBar()。要设置到窗口中的新建菜单上，则必须调用 C...
NSIS内置路径命令详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...解释常用命令的含义，适合nsis初学者学习使用。$INSTDIR=默认安装路径 !
$PROGRAMFILES=C:\Program Files!
$TEMP=临时文件夹!
$DESKTOP=桌面!
$SYSDIR=C:\WINDOWS\system32!
$EXEDIR=我的文档!
$WINDIR=C:\WINDOWS!
$STARTMENU=相对应用户名称的「开...
C++的公有继承、保护继承、私有继承有什么区别？ - C/C++ - 清泛网 - 专注C...
...员了。
详细的访问权限如下：
public：（不指定的话，默认是公有继承）基类所有公有成员、保护成员可访问权限不变。
protected：基类所有公有成员、保护成员均成为子类的保护成员。
pirvate：基类所有公有成员、保护成员...
std::string的截取字符串的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...start开始。 如果有匹配，则返回匹配位置；否则，返回-1.默认情况下，start为0，函数搜索整个字符串。
int find_last_of(char c):
查找字符串中最后一个出现的c。有匹配，则返回匹配位置；否则返回-1.该搜索在字符末尾查找...
Unicode and UTF-8 - C/C++ - 清泛网 - 专注C/C++及内核技术
...以通过获得其文件大小/2即可计算得知包含的字符数。Java默认使用UTF-16 BE编码。
那么为什么会出现utf-8呢：
1）、和ASCII码不兼容，而且不太好移植(Not Portable)
例如：char *s=“Good ,北京”;该C语言代码采用UTF-16编码后，字节序列...