cursor

问题 I have to iterate each row in my table User in MySQL. I need to create a new row Address for each iteration in User with some conditions described below. I have 3 tables: User: id, stuff, id_person, email Person: id, stuff, id_address Address: id, email I need to create a new row in Address if the User.id_person is NOT NULL and that person.id_address IS NULL. I have to create the row with the same email that User.email. I have to do that for each row in User. I tried to use MySQL cursor's but

问题 I am trying to mimic a command-line client. I wish to set the cursor shape to '>', to show messages to user. I don't see that shape in the options provided by QCursor. Is there a way to set custom shapes to widget cursors? 回答1: You need to set the QTextEdit's viewport's cursor: http://doc.qt.nokia.com/stable/qtextedit.html "The shape of the mouse cursor on a QTextEdit is Qt::IBeamCursor by default. It can be changed through the viewport()'s cursor property." e.g. To hide the cursor completely

问题 I need to define some cursor for spliting t-sql @xml variable on elements level into different @xml(s). for example: <root> <element id=10/> <element id=11/> <element id=12/> <element id=13/> </root> so that get the following values inside of tsql cursor: <root><element id=10/><element id=11/></root> then <root><element id=12/><element id=13/></root> and so on where n number of elements pro cursor loop. 回答1: Well, you can use the build-in functions for manipulating XML . For example, the

问题 I need to define some cursor for spliting t-sql @xml variable on elements level into different @xml(s). for example: <root> <element id=10/> <element id=11/> <element id=12/> <element id=13/> </root> so that get the following values inside of tsql cursor: <root><element id=10/><element id=11/></root> then <root><element id=12/><element id=13/></root> and so on where n number of elements pro cursor loop. 回答1: Well, you can use the build-in functions for manipulating XML . For example, the

问题 I'm creating a system that uses multiple cursors (pointers) in multiple xsessions. My computer has multiple video cards in it for controlling different monitors. I want to have a different cursor on each screen and control each. Each monitor is a different session. I started using the xlib library in C to control the single cursor I have using the following command: XWarpPointer(display,None,window,0,0,0,0,x,y); This works perfectly for one cursor. Then I created a second cursor using xinput

问题 I have an HTML element textarea with defined CSS rule { resize: both } . In FF when the user mouse over the right bottom corner of textarea the cursor changed according to value of property resize , but in Chrome cursor doesn't change. Please open this example in FF and Chrome to check the difference. Is it a bug of Google Chrome and can I fix it with CSS on my side? Update I reported bug to Chromium: https://bugs.chromium.org/p/chromium/issues/detail?id=942017 Update 2 The bug was fixed in

问题 I have a div in the middle of a simple webpage. When I hover this div, I want my cursor to change randomly to a customized image. I know how to set my own cursor image with css. But how to use javascript to make this cursor image different each time we refresh the page? This website shows exactly what I want to achieve. When we hover an image, the cursor becomes a little icon that is different each time we refresh the page. https://glossier.com/#!/ Thanks in advance. 回答1: You need an array of

问题 I need to change the cursor image. Whenever the mouse is over my form I need to load my own image from a local path. I am using version 1.1 of the .NET framwork. Here is what I have tried: Cursor = new Cursor(GetType(), Application.StartupPath+ "\\windowfi.cur"); But this throws an exception: Value cannot be null. Parameter name: dataStream 回答1: Cursor class has a constructor that takes in cur file path as a parameter. Use that. Like this: this.Cursor = new Cursor("<your_cur_file_path"); 回答2:

问题 I'd like to create a procedure that selects all records that have been assigned to any particular user, then send one personalized email to each assigned user that contains a list of the records that are assigned to them. So if myTable looks like this: ID Assigned 1 Joe 2 Joe 3 Shelly Joe's email would display a line-delimited list with records 1 and 2 in it, and Shelly's would display record 3. I started building a procedure with cursors at first, but 1) wasn't sure if I could reference a

问题 I've got issue with the not-allowed cursor. While dragging the "drag" element, not-allowed cursor appears and I can't drag it anymore. How can i prevent that? I want to make my "drag" element always be "absolute" while mouse is down. Note: I know that it can happens becouse "pointer-events" but I need it to be contained into this code. Some code: $("#drag").bind({ mousedown : function (e) { var dragged = $(this); dragged.css({ left : e.pageX - (50 / 2), top : e.pageY - (50 / 2) }); dragged