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Getting the class name from a static method in Java
...tatic context to mean the current Class in Java, that that "class.xxx" was allowed in either instance or static code to mean this class! The problem with this is that MyClass is verbose and redundant, in the context. But then as much as I like Java it does seem to lean towards verbosity.
...
Convert Base64 string to an image file? [duplicate]
... data in the function before decoding the string, like so.
function base64_to_jpeg($base64_string, $output_file) {
// open the output file for writing
$ifp = fopen( $output_file, 'wb' );
// split the string on commas
// $data[ 0 ] == "data:image/png;base64"
// $data[ 1 ] == &l...
How to check null objects in jQuery
...em to have enough reputation to vote down the answer...)
Wolf wrote:
Calling length property on undefined
or a null object will cause IE and
webkit browsers to fail!
Instead try this:
// NOTE!! THE FOLLOWING IS WRONG; DO NOT USE! -- EleotleCram
if($("#something") !== null){
// do ...
Python Flask, how to set content type
...
Try like this:
from flask import Response
@app.route('/ajax_ddl')
def ajax_ddl():
xml = 'foo'
return Response(xml, mimetype='text/xml')
The actual Content-Type is based on the mimetype parameter and the charset (defaults to UTF-8).
Response (and request) objects are docume...
The character encoding of the HTML document was not declared
...head:
<meta charset="UTF-8">
the character encoding (which is actually UTF-8) of the html document was not declared
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MFC Telnet Application（mfc telnet 端口，代码实现、不调用telnet.exe） ...
...调用telnet.exe。程序源码工程升级后，可能出现编译不过的情况，请将stdafx.h中0x0410全部改为0x0501即可。The article demonstrates an MFC GUI Telnet application with server capabilities for incoming connections support.
Download demo - 29.9 KB
Download source - 42....
VS工程“生成事件”之文件拷贝 - C/C++ - 清泛网 - 专注C/C++及内核技术
... "$(SolutionDir)$(ConfigurationName)\conf\"
（/D 只复制时间戳最新的文件，/Y 不提示覆盖，/E 递归子目录）
实际上就是执行copy、xcopy等Dos命令，具体用法可参照Dos帮助。$(SolutionDir)等宏命令可参考：
VS 拷贝事件 文件拷贝
c++编译错误：invalid new-expression of abstract class type - C/C++ - ...
...出错，说明父类（接口）中有纯虚函数没有实现。接口里的纯虚函数全部需要实现，这样才能new 子类。纯...出现这个错误原因是new 了一个抽象类出错，说明父类（接口）中有纯虚函数没有实现。
接口里的纯虚函数全部需要实...
控件不响应OWNERDRAW消息 - C/C++ - 清泛网 - 专注C/C++及内核技术
... ....
}
}
中自绘不生效，调用CListCtrl的RedrawItem后不触发OnDrawItem函数。
这是由于没有设置自绘项，设置方法如下：
控件右键“属性”：
OWNERDRAW 消息