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How to save a plot as image on the disk?
...age might look different on disk to the same plot directly plotted to your screen, for example if you have resized the on-screen window.
Note that if your plot is made by either lattice or ggplot2 you have to explicitly print the plot. See this answer that explains this in more detail and also l...
How to hide status bar in Android
...croll to see all remaining views(ex: compose,subject, send button) in that screen. Similarly in my app I have one activity in that I am having some widgets or views.
Suppose if the user clicks on Edittext which is in my Activity then keyboard is popping out and i can be able to scroll to see rem...
Java: Clear the console
Can any body please tell me what code is used for clear screen in Java? For example in C++
14 Answers
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Get the current displaying UIViewController on the screen in AppDelegate.m
The current UIViewController on the screen need to response to push-notifications from APNs, by setting some badge views. But how could I get the UIViewController in method application:didReceiveRemoteNotification : of AppDelegate.m ?
...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
... 文件大小非0时为真
-t file 当文件描述符(默认为1)指定的设备为终端时为真
含条件选择的shell脚本 对于不含变量的任务简单shell脚本一般能胜任。但在执行一些决策任务时，就需要包含if/then的条件判断了。shell脚...
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++ 写日志通用类，可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...| nLevel < LEVEL_FATAL)
{
LOG_WARN(_T("设置日志级别:%d 失败，默认INFO级别！"), nLevel);
return;
}
nLoggerLevel = nLevel;
LOG_INFO(_T("设置日志级别:%s 成功！"), LOGGER_LEVEL_NAME[nLevel]);
}
void Log(INT nLevel, LPCSTR func, INT line, LPCTSTR fmt, ...)
{
if...
BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...时所有的进程信息(速度较慢)
// BTF_SHOWADVANCEDUI：崩溃后默认显示详细对话框(不设置的话，先显示简单对话框，有查看详细的按钮)
// BTF_DESCRIBEERROR：发送报告之前弹出问题描述对话框，让用户输入错误描述信息
BT_SetFlags(BTF_D...
PHP报错：Only variables should be passed by reference - C/C++ - 清泛网 - 专注C/C++及内核技术
...绝对可行）
因为array_shift的参数是引用传递的，5.3以上默认只能传递具体的变量，而不能通过函数返回值
解决办法 2 ：
或则如果这样配置的话： error_reporting = E_ALL | E_STRICT
PHP 报错