UNICODE _UNICODE tchar.h L and _T
You must know they are all related to unicode but how to use them? UNICODE definition is used in Windows SDK source code. If it is defined, functions like RegSetValueEx […]
How to build COM server with ActiveQt and MingW
Yes, you really can build out the dll that contains your COM server according to this guide. But the story just begins. When you register your dll with “regsvr32 myprogrammingnotes.dll”, […]
How to build Qt 4.8 64 bit with MingW?
To build Qt 4.8 with MingW, you have to use a proper MingW version. The latest MingW won’t build Qt 4.8. You will get weird problems such as “qsimd.cpp:296:23: error: […]
Access property of Javascript object
How to define a Javascript object? The key of an object can be an identifier/symbol(an identifier is a continuous alphabeta/number/_ that does not begin with a number), a number, or […]
The onclick attribute of submit input and the onsubmit attribute of form
A form typically has an input button of the type sumbit; clicking the submit input button may trigger the posting of the form. The submit input button can have an […]
Network request initiators
When you type a url such as myprogrammingnotes.com in Firefox’s address bar and type the enter key, the browser will send many http requests to the network. These requests are […]
How to write a firefox extension that reloads page automatically?
Creating a Firefox extension that automatically reloads a page can be accomplished using the WebExtensions API provided by Firefox. To write a firefox addon, you need to at least write […]
Firefox extension icon not showing
You must know how to add an icon for a firefox extension: “browser_action”: { “default_popup”: “popup.html”, “default_icon”: { “16”: “icon16.png”, “48”: “icon48.png”, “128”: “icon128.png” }, “default_title”:”hello world”, } You expect […]
Protocol error (Error): Extension is invalid from: server0.conn0.webExtensionDescriptor40 (resource://gre/modules/addons/XPIInstall.sys.mjs)
If you are developing a firefox extension, you might get this error after you edit the manifest.json file and reload the extension. It indicates some error in the manifest, e.g., […]
How to know the version of Visual Studio used to develop a project?
For your own project, sure you know what Visual Studio version you are using to develop it. But for other projects downloaded from the Internet such as github, how to […]