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Window Features - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ts the painting of windows that called SetLayeredWindowAttributes into off-screen memory and recomposes it to achieve the desired effect.
For faster and more efficient animation or if per-pixel alpha is needed, call UpdateLayeredWindow.UpdateLayeredWindow should be used primarily when the applicati...
Specifying and saving a figure with exact size in pixels
...o show a figure of that size (matplotlib requires the figure to fit in the screen, if you ask for a size too large it will shrink to the screen size). Let's imagine you want an 800x800 pixel image just for an example. Here's how to show an 800x800 pixel image in my monitor (my_dpi=96):
plt.figure(f...
Alternate output format for psql
...ew for Postgresql 9.2; PSQL automatically fits records to the width of the screen. previously you only had expanded mode on or off and had to switch between the modes as necessary.
If the record can fit into the width of the screen; psql uses normal formatting.
If the record can not fit into the ...
Android activity life cycle - what are all these methods for?
...p
onRestart() --> onStart() --> onResume()
When any dialog open on screen
onPause()
After dismiss the dialog or back button from dialog
onResume()
Any phone is ringing and user in the app
onPause() --> onResume()
When user pressed phone's answer button
onPause()
After call end
...
Postfix发信的频率控制几个参数 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...值为2,因为对本地同一收件人投递邮件时投递工作只能一个接一个的进行,所以设得在大也没用。
3. 对同一封邮件的收件人数目限制
通过default_destination_recipient_limit参数来控制postfix的投递代理(如
smtp进程)可以将同一封...
使用 C++ 处理 JSON 数据交换格式 - C/C++ - 清泛网 - 专注C/C++及内核技术
....json.org。
二、本文选择处理 JSON的 C++ 库
本文选择一个第三方库 jsoncpp 来解析 JSON。jsoncpp 是比较出名的 C++ JSON 解析库。在 JSON官网也是首推的。
下载地址为:http://sourceforge.NET/projects/jsoncpp。本文使用的 jsoncpp 版本为:0.5...
is there a css hack for safari only NOT chrome?
...ification!)
And here is the code:
/* Safari 6.1-10.0 (not 10.1) */
@media screen and (min-color-index:0) and(-webkit-min-device-pixel-ratio:0)
{ @media {
.safari_only {
color:#0000FF;
background-color:#CCCCCC;
}
}}
For more 'version specific' Safari CSS, please contin...
twitter bootstrap navbar fixed top overlapping site
...ave stated adding a padding-top to body works great.
But when you make the screen narrower (to cell phone widths) there is a gap between the navbar and the body. Also, a crowded navbar can wrap to a multi-line bar, overwriting some of the content again.
This solved these kinds of issues for me
bod...
HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...务器。其他请求被转发到web-backend,后端可能正在运行另一个应用程序。
三、HAProxy基础配置文件详解:
haproxy 配置中分成五部分内容,分别如下:
global: 设置全局配置参数,属于进程的配置,通常是和操作系统相关。
defa...
How can an html element fill out 100% of the remaining screen height, using css only?
...e of CSS worked for me in 2 seconds :
height:100vh;
1vh = 1% of browser screen height
source
For responsive layout scaling, you might want to use :
min-height: 100vh
[update november 2018]
As mentionned in the comments, using the min-height might avoid having issues on reponsive designs
[up...
