cursor | 易学教程

How to change the cursor image in Java AWT and/or Swing?

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问题 I'm making a simple graphics editor (i.e a paint program ). I am not planning on anything fancy, but I do want my program to change the mouse cursor to something like a "+" or an "O" when it enters the Paint Panel. like in Photoshop or GIMP. How would I do this? I can't find anything in AWT / Swing threads on how to change the mouse cursor. 回答1: Just in case someone wants something more "fancy" than any of the default cursors: it's possible to create a custom cursor (provided the Toolkit

How do I clear Cursor.Clip in C# and allow the cursor to move freely again?

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问题 I am trying to lock the cursor into the form, this is for a mouse locker application, I am trying to dispose the cursor so it will reset the Cursor.Clip when they unlock it. So far I have: Cursor.Clip = new Rectangle(x +8, y +30, Size.Width -16, Size.Height -38); That works fine. But I cannot figure out how to clear the clip when they unlock it. I have tried Cursor.Dispose(); But that doesn't work. Any ideas? Thanks. 回答1: Set Clip to a Rectangle that contains the screen's dimensions. Cursor

How to change cursor using extjs

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问题 I would like to set a column of a grid to change cursor to pointer once hovered. I dunno if its best practice to apply a style to it, you tell me please. I just cant figure it out. This is my code and I wish the column would change cursor upon mouse hover. Ext.define('Ext.grid.Panel', { store: services, xtype: 'log', features: [groupingFeature], stateId: 'stateGrid', columns: [ { text: 'URL', sortable: true, flex: true, dataIndex: 'url' } ] }); thank you for help 回答1: It works for me: columns

Filter a managedQuery by file extension (or, alternatively, file type) for an Android Cursor

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问题 I want to do a managedQuery using Android SDK where the results returned are filtered by their respective file extension (e.g. not the name, necessarily). I've done quite a bit of researching and am tired and hoping the community can help me.. I'm sure the answer is out there but, in lieu of reading an SQL book or whatever, I'm just trying to do something that should be pretty simple but not finding the solution. What I want to do is, essentially, something like: managedQuery(Audio.Media

python实现接口自动化测试中如何使用pymysql直连数据库？

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概述接口测试中，我们PyMySQL是纯 Python 实现的驱动，速度上不理想，但最大的特点可能就是它的安装方式没那么繁琐，是 python 直连数据库时常用的第三方库理论基础+典型应用场景，巧用python轻松搞定接口自动化测试实现步骤 1 PyMySQL 安装启动命令行，联网的前提下键入命令: pip install pymysql 2 PyMySQL 基本实现流程简介导入第三方 import pymysql 创建连接，配置连接信息 conn = pymysql.Connect(host=“127.0.0.1”, port=3306, database=“books”, user=“root”, password=“root”, charset=“utf8”）创建数据操作载体对象_ cursor 游标 cursor = conn.cursor() 按照需求，编写并执行 sql 语句首先，声明 SQL 语句 sql = “select * from t_book” 然后,通过 cursor 对象将 SQL 语句发送到数据库 cursor.execute(sql) 最后，通过 cursor 对象获取响应结果 print(“行数:”,cursor.rowcount)#获取行数 print(“第一条:”,cursor.fetchone())# 获取单条数据最后释放资源

How to change Windows cursor in WPF?

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问题 I like to change the cursor, when user clicks a button. I can use FrameworkElement.Cursor. But it only changes the cursor for my current App. But I need my entire Windows cursor should change. I mean if you move the mouse outside the my app, it should show my cursor (not the default arrow). How to achieve this? 回答1: In order to accomplish this you have to change a registry value then perform an API call, check this MSDN post for more details on how to do it: How to change the system’s cursor

SQL Cursor in dynamic content

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问题 I need a little help wrapping my head around CURSOR. I made an aspx report, it was quite simple. For each project I needed to see how many hours went on Research, Development and Internal. That first one was quite simple, I just hardcoded the solution with 3 groups and an equal 3 types of time. Boss thought that was a brilliant report so he wanted it to cover all customers. Unfortunately the next customer had 5 groups and each group had 2-7 different types of time to each. Now I need a

Java: Holding the cursor in an area

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问题 For those of you who have played Madness Interactive, one of the most frustrating things is when the cursor leaves the game area, and you accidentally click. This causes the game to defocus and your character dies in a matter of seconds. To fix this, I'd like to make a java application that I can run in the background that will hold the cursor inside the screen until I press a key, like ESC or something. I see two ways of implementing this, but I don't know if either of them are workable.

How to create an embedded resource cursor in C# Winforms?

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问题 I'm trying to add a custom cursor to a C# Winforms application as an embedded resource. It seems the embedding part is not working as the docs imply it should. If I load the cursor from a file at runtime it woks just fine: myMagCursor = new Cursor("../Resources/magnify.cur"); So it seems the cursor file is good. I followed this info on MSDN to embed the cursor (from the comments in the C# example): //In Visual Studio: // 1. Select the cursor file in the Solution Explorer // 2. Choose View-

Set the cursor to a pointing hand over a text view

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问题 Is there a way to set the cursor to a pointing hand over a text view without subclassing NSTextView? I read a lot about NSTrackingAreas, tested a lot of examples, set different tracking options and implemented different methods, but the cursor still remains an I-Beam. I have read that it is an AppKit automatic feature, so how can I prevent this? Thank you! 回答1: I had to subclass. After a couple of hours to test a lot of methods and options, this finally worked : @implementation ATTextView -