windows-store-apps

问题 I have an image and i want to adjust its brightness and contrast through a slider in xaml. I don't know where to start.Any help would be appreciated. I am trying to implement this public WriteableBitmap ChangeBrightness(WriteableBitmap inputBitmap, double brightnessValue ) { double Value = brightnessValue; var inputPixels = inputBitmap.Pixels; for (int i = 0; i < inputPixels.Length; i++) { // Extract color components var c = inputBitmap.Pixels[i]; var a = (byte)(c >> 24); var r = (byte)(c >>

问题 So here's the gist of my problem: I have a keyboard where I can assign macros and/or launch programs from. I want to include a couple Win10 and Steam applications in that list. So I opted to build an executable "launcher", so to speak. The code is simplistic in nature. I got Steam url's to work by placing the steam url into Process.Start("steam://rungameid/#####"). I cannot, however, figure out how to get Win10 apps to work. Here's my class: public partial class Form1 : Form { public Form1()

问题 I have an Adcontrol which works fine with test values given by Msdn but does not shows ads with actual values.(Windows Store App) 回答1: This could be a perfectly normal behaviour if there is no ad to display. You can suscribe to the ErrorOccured event of the AdControl and check the Error property to confirm that by seeing a "No fill" message. 来源： https://stackoverflow.com/questions/34148828/adcontrol-does-not-show-ads-with-pub-center-app-id-and-unit-id

问题 I am trying to get the access token from MNS for Push notifications and the WebRequest.GetRequestStreamAsync() method timesout each time. Any suggestions? Reference: http://msdn.microsoft.com/en-us/library/windows/apps/hh913756.aspx Below is the code I use HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create("https://login.live.com/accesstoken.srf"); webRequest.Method = "POST"; webRequest.ContentType = "application/x-www-form-urlencoded"; string postString = String.Format("grant

问题 First, sorry for my English it`s not my native language. Second I start to learn tutorial for create Windows Store application. In the end of Part 3 we were invited to use Visual Studio Simulator. But when I run it I take an error: Windows Simulator needs your credentials. Please lock this computerm then unlock it using your current password and run the Windows Simulator again. To lock your computer, press CTRL-ALT-DEL and the press Enter I found some reference http://support.microsoft.com/kb

问题 So I'm getting started in windows store apps. It is also my first experience with Visual Studio. Windows 8.1 for that matter, too :P I'm trying to figure out how local file storage works during the dev phase of this project. I understand the concept of how the appdata directory and the application install directory interact with the app once it is published and installed on a client's PC. This SO answer gives a good overview of how it is supposed to work. However, I can't figure out how,

问题 So that an WinRT application can be internally distributed via Intune I need to attach a certificate as per http://msdn.microsoft.com/en-us/library/windows/apps/br230260(v=vs.110).aspx I go to the package.appxmanifest screen, click choose certificate - > configure certificate - > select from file. I double click on the relevant certificate, and type the password. I then get the error message "The Manifest Designer could not import the certificate. The certificate you selected is not valid for

问题 I want to show ProgressBar when service call made. Product.xml <ProgressBar Name="loading1" Visibility="Collapsed" IsIndeterminate="True" HorizontalAlignment="Left" Height="50" Width="535" VerticalAlignment="Center" Background="White" Grid.Row="1" Margin="0,311,0,310"/> Product.xml.cs loading.Visibility = Visibility.Visible; //loading start getAllProductDetails(); //contain service call and bind data in list loading.Visibility = Visibility.Collapsed; //loading finish Loading should start

问题 On button click I want to open the default metro browser (usually IE) without opening a new tab/page, just open the browser, If it is already running then just switch to it as it is to it's current state. Is there a way to do that? 回答1: This is just something to try, and may or may not work in your scenario: If you know the url that is open in the browser, your Windows Store app could launch that same url with the launcher. In my app, when I launch the same url multiple times, IE will pop up

问题 I have an class in a Windows Runtime Component (written in C#) that raises events. I cannot work out how to subscribe to these events in a C++/CX app that references the component. The C# code (in the Windows Runtime Component): public sealed class Messenger { private EventRegistrationTokenTable<EventHandler<MessageReceivedEventArgs>> messageReceivedTokenTable; public event EventHandler<MessageReceivedEventArgs> MessageReceived { add { return EventRegistrationTokenTable<EventHandler