This windows image viewer can enable developers to easily add a wide range of image viewing and editing functionality into their vb. Unless you are want to run your long processes on another thread you only have to stick in a application. Waitcursor only supports png images and preserves alpha channel information thanks to which it renders transparency of the png images. The example creates a form that contains a combobox control, a panel control, and a listview control. By continuing to browse this site, you agree to this use. I know that there exist several kindstypes of cursors in vb. I have an application that is doing some work that takes time and i wish to use the wait cursor but i cant find how.
Im currently making windows forms program application, and when the user logs into it, he must wait a few seconds before entering it. Waitcursor, waitcursor end sub private sub drawcursor byval objgraphics as graphics, byref x as integer. Show hourglass pointer on lengthy operations in ui for. I just added a wait cursor to one of our guis by stumbling through the docs, but im unsure ive done it the best way. Jul 23, 2015 tweetemail tweetemaili actually did a post around this topic a while ago on another site that is now defunct, but i figured it is still useful, and i have a few additional details to add. If the cursor cannot be changed in the code behind then how do websites accomplish this task. If you want to change the mouse cursor at application level use static property current of cursor class. Forms public class waitcursor public shared sub main application. The problem with this approach is it temporarily sets the wait cursor, but doesnt ensure that the wait cursor shows until the end of your operation.
Unfortunately i only get the wait cursor for 14 of. Cursor property, the cursor class, and the cursors class. Finally the program uses a webclient to download the images. Use this library to very easily add an application wide waitcursor whenever your application is working. In htat time i have been working for a large uk government organisation with a team of about 10 developers shipping custom apps to various business units. Set the wait cursor so the user knows that the application. This site uses cookies for analytics, personalized content and ads. This article is about the using statement as much as about the cwaitcursor class.
Net image sdk now to create a windows image viewer in a visual basic. That objects images property returns information about the pages images. Doevents line after changing the cursor and before the long process. Display a wait cursor while form is busy stack overflow. You can help protect yourself from scammers by verifying that the contact is a microsoft agent or microsoft employee and that the phone number is an official microsoft global customer service number. In my page i have a client side button and when it is clicked i want the code to change the mouse cursor to hourglass and when the required code is executed i want to change the mouse cursor back to default. Net framework components such as classes and namespace. The program displays a webbrowser control on the left. Although the usingnew waitcursor syntax is a little bit more verbose than just declaring an object at the top of your method, i actually have come to prefer it since you have more control and more visibility. I am trying in visual basic 2008 to make the wait cursor appear as a file is opening, in case it is a long file, and this.
Ani file, further you are required to paste it into the bin folder of the project. Darwin johnson received a solution using to read and write text from one application to another. Waitcursor applies to windows forms not web applications. To return back the default behavior to display control specific cursor assign back value cursors. Waitcursor to display a wait cursor over the application while the file loads or. A cursor in windows is an icon that is displayed when you move a mouse, a pen, or a trackball. The combobox contains all cursors provided by the cursors. It uses the objects openread method to open the uri for reading, attaches a streamreader to the stream, uses its readtoend method. This example consists of a extensible application markup language xaml file and a code behind file.
Today, i would like to talk about the cursor object and how you can utilize it properly from your visual basic program. I didnt implement the restore method of mfcs cwaitcursor to make the example cleaner. Oct 21, 2011 following example draw all cursor image with their name on the windows form using vb. The advantage of saving the old cursor is that you can nest instances of the class, and the old cursors are reset as your call stack unwinds. The user interface is created, which consists of a combobox to select the desired cursor, a pair of radiobutton objects to. Browse other questions tagged forms or ask your own question. Waitcursor is useful for creating custom wait cursors spinners which inform the user of a background operation taking place such as file transfer, document download, etc.
Developers from all over the world come together to share knowledge, source code, and tutorials for free to help their fellow programmers professional developers, hobbyists and students alike. This has the advantage of working for any given control and all its child controls, so set it for a form and the whole ui for the form will display the waitcursor when the pointer is over it, regardless of the control under the mouse. Mouse cursor displayed over any control in windows forms application is determined by control. This example shows how to download a file from the web and save it with an arbitrary local file name in visual basic. Waitcursor dim mi as methodinvoker addressof overlaycalibration begininvokemi cursor cursors. Waitcursor if serial nothing then exit sub dim genpid as intptr marshal.
Net wait cursor and formdialog from the expert community at experts. This example shows how to change the cursor of the mouse pointer for a specific element and for the application. Mar 16, 2005 weve been using your automatic application wait cursor at work in our rich client apps for nearly three years and have had no problems at all. How to get the hourglass cursor, so the user will be informed that the program app is busy performing an operation. To return back the default behavior to display control specific. However when i drag say the picturebox fish across, it appears exactly as expected but there is a duplicate copy shown at the top left of the primary monitor. To make the wait cursor display for the entire application, regardless of the control or form selected, call usewaitcursor on the application class. No cursors class the cursors class provides a set of cursors that can be used in windows forms.
Net wait cursor and formdialog solutions experts exchange. I enter some information and click on a button, the cursor changes to indicate some processing is going on, and then it changes back when the processing finishes. Tech support scams are an industrywide issue where scammers trick you into paying for unnecessary technical support services. If you add another button outside the whole nav group, and click on that to turn on the wait cursor and make sure you leave keyboard focus inside the button while you move the mouse back inside the grid view the cursor will stay a wait cursor even after. Other programs or controls within your program can easily reset the cursor back to the. I have a addin without a form, and i want the cursor to change to the waitcursor when my code is run. How to change mouse hourglass into blue circle in windows. Its common ui courtesy to show the wait cursor when performing a long operation that requires the user to wait.
Sep 17, 2011 create graphic replacement for standard cursor. I use the following just like all my other projects. I am running windows 7 x64 and the project compiles and runs fine. Net web page the server side code goes off and executes a long running process.
According to msdn, a cursor is a small picture whose location on the screen is controlled by a pointing device, such as a mouse, pen, or trackball. Ill cover the following topics in the code samples below. The following example demonstrates changing the mouse cursor using the control. Based on the addin express for office core, it is designed for building customtailored office addins with far less coding than you usually have to do. Waitcursor to display a wait cursor over the application while the file loads or saves to prevent any mouse. I have an application that is doing some work that takes time and i wish to use the wait. I have windows form which will load some system and sim information and display. This code shows how to apply and manage cursors in your windows applications. You can also view your actual ftp server window in a.
This technology is now available for our custom development services only. This is a big program and this description only touches on its most interesting parts. Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls. Ah, i see what i did differently your example relies on clicking inside the gridview on the group panel to turn on the wait cursor. I come from vb6 where everything is single threaded, so ive never written a lick of multithreaded code before.
At the time of loading the form, some operations need to be done, so it will take time one or two minutes to load the form. You can change the cursor for individual html elements on your web page using css and dhtml. Waitcursor is useful for creating custom wait cursors spinners which inform the user of a background operation taking place such as file transfer, document download. It is used as a helper control and does not have a user interface or design. Hi, im working on ppc application with compact framework 1. Net wait cursor and formdialog from the expert community at experts exchange. S before posting a question on a forum, be sure to. This works as a stack, such that for each waitcursor state on command executed there should be a matching waitcursor state off command pending. Downloads for building and running applications with. The solution for this problem and the suggested proper way of displaying the waitcursor is to set the forms usewaitcursor property. Apr 06, 2014 while you could simply create an instance of the waitcursor class and call the dispose method when your operation is complete, you can also use the using keyword to ensure dispose is always called, as shown in listing 2. Creating a cursor cursor is not a typical windows forms control. Wait cursor hourglass from the expert community at experts exchange.
Need help showing a wait cursor, image andor message. Net executables and download the sample project which contains. Keywords, download, download file, web, internet, webclient, ftp, file transfer, visual basic, vb. Waitcursor gets the wait cursor, typically an hourglass shape. I know that there exist several kindstypes of cursors in system, like those. Robbe also loves to scuba dive and go deep sea fishing in the florida keys or off the coast of daytona beach. How to display hourglass icon on winform while program is busy. Windows forms general usewaitcursor not working but cursor cursors. This command setsresets a wait cursor for the entire maya application.
Updating ui from a different class using a new thread i have a program which performs a few simple download tasks. In a winforms application you could change the cursor to a wait or hourglass cursor to inform the user that the application is busy. Tim toady is the founder of browserling inc, a crossbrowser testing service. It read that objects document property to get an htmldocument. The proper way to show the wait cursor posted by timm 22 comments. This example shows how to grab images from a web page in visual basic.
Get web installer, offline installer, and language pack downloads for. Use a webclient object to download the data at a uri in vb. When you enter as uri and click the upload button, the program creates a webclient object. Draw all cursors on the form using draw string in vb. Weve been using your automatic application wait cursor at work in our rich client apps for nearly three years and have had no problems at all. For example, if the purpose of your application is to edit a text file, you might set the current property to cursors. You are out of luck with a color cursor using the builtin. Draw all cursors on the form using,string draw in, how to use painteventargs in.
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