I hope this doesn't get lost in the sea of other questions.
Im working on a little program for my Visual Basic 08 class. Im going a bit further with it and making a windows mobile version of it. (currently using the WinMo 5 SDK) The program works fine in the windows platform, however when i copied the code over to the WinMo version, there was a few issues with the code. Most of it i manage to find the new syntax for and get it working on the WinMo emulator, however there is one problem that persists. TabControl.focus. This function does not seem to work in the WinMo development. Any Code i input that looks for what tab has focus, is ignored, like it doesn't know to look for the focus. Here is what im trying to do.
I have a program, with 2 tabs, and one button. I need that one button to execute two separate code blocks, depending on which tab is active. However i cannot get it to recognize, or do not know the proper function to get it to see which tab has focus, and execute the proper code accordingly.
Now, the simple fix for this would to just make another button, and place one each inside the tab, but i wanted to avoid that for as much as possible, and since it workers fine on the windows end, i know there has to be a way to get it working on the winmo end. By the way, im doing this in VB because im learning VB for a class, and the more coding practice i get the better ill do in class. Im sure there is a better way to do this in C# or whatever else.
Anyone know the workaround for this?
Im currently using Visual Studio 2008 Pro with the WinMo 5.0 SDK.
Your two tab pages are already part of a tabcontrol object. Use that to find the active tab with its property tabControl1.SelectedIndex This will return a zero based index integer for each tab paged attached to it. The object names used here are the default ones created by the IDE
Sorry, I only code in c#, but the VB code will be almost identical.
In the code for the button click event -
if(tabControl1.SelectedIndex == 0)
{
// tabPage1 active
}
else
{
// tabpage2 active
}
c sharp's double equals is the same as VB's single equals, in the sense that it means 'is equal to'.
There is not "active" property in vb (atleast not in vb mobile code) so that doesnt work
Im somewhat fimiular with c++, so i can atleaast understand the code when you put it in C format, but i have a bit of trouble converting C code to vb format. In this case, in normal (non-mobile) the .focus would be enough to make it work...
Here is what i tryed to make work..
Code:
'Changes what the "Roll" button does depending on which program tab is selected.
Select Case True
Case xTabPageCombatRoll.Focus
Call RollCombat()
Case xTabPageRandomRoll.Focus
Call RollRandom()
Case Else
MessageBox.Show("The Tab Control code didnt work")
End Select
both tab pages are part of xTabPageCombatRoll object
I'd suggest asking Development questions in the Dev&Hack section.
(yes, new rules)
Here's the screen shot and the c# application to go with it. Its in VS2005 but VS2008 will open it and convert the solution and project files to 2008 format. Once that happens VS2005 will not be able to open it.
The lines starting // in the code in the previous post above are comments. Same as VB's ;
thanks steph, i have 2005 installed along with 2008 so i just ran 05 . That code does work. But i still cant find anyway to translate that into VB (as .SelectedIndex is not valid in VB code)
ugh.. the more i work with VB the more i like C based code. But im in a VB class so im trying to keep doing stuff in VB so i can pass the class.
SelectedIndex is a property of the TabControl, a .NET framework object It does not matter which language you use to access it. VB, C#, C++, take your pick .
To prove the point here is the same project in VB. I had had to do this on another machine, as I only have C++ and C# installed on this one.
It only had the WM 2003 SDK on it. If your machine has the .NET CF 2.0 the .EXE should work, if you drop it on your device.
Another trick is to use Red Gate's .NET Reflector. If you point it at the original exe generated by the C# project in the previous post above, it decompiles it in C# as
Code:
private void button1_Click(object sender, EventArgs e)
{
switch (this.tabControl1.SelectedIndex)
{
case 0:
this.label1.Text = "Page1 is active";
break;
case 1:
this.label1.Text = "Page2 is active";
break;
}
}
If you decompile it as VB instead you get :
Code:
Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)
Select Case Me.tabControl1.SelectedIndex
Case 0
Me.label1.Text = "Page1 is active"
Exit Select
Case 1
Me.label1.Text = "Page2 is active"
Exit Select
End Select
End Sub
Ahh..
I got it to work now.. My problem was i wasnt specificly using Case 0 and Case 1, but instead using Case Tabpage1, and Case Tabpage2, which wasn't working.
Thank you VERRRY much.. The program is working like it should now and it makes me verry happy
Related
Hi everybody,
is it possible to open a programm twice parallel? I want to open the coreplayer twice, one time for music and another time for audiobook. Is that possible?
thx, mic
It's probably not too hard to write a script for it.
trying talking to either vijay or oldsap.
Depends on the code in the program itself. In the shell code created by Embedded C++ in the InitInstance function there is the following code:
Code:
hWnd = FindWindow(szWindowClass, NULL);
if (hWnd)
{
// set focus to foremost child window
// The "| 0x01" is used to bring any owned windows to the foreground and
// activate them.
SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
return 0;
}
In other words when the application starts, it looks for another active process with the same name as itself. If it finds one, it activates it, then kills itself.
thx for try to help me - that means it is not possible?
The original PPC programming guidelines by Microsoft stipulated that only one copy of a program should be running at any one time. In later versions of Windows CE/PPC a lot more processes are allowed to run simultaneously. They may have changed their tune over this since. Try and launch it twice, then go to Settings->System->Memory and see if there is more than one copy in Running Programs. If there is only one, then I'm afraid the answer is no.
P.S. If you create a Windows Mobile Win32 program in C++ under Visual Studio 2008, it still has the process checking code in it by default.
Hi I want to make an application using location, I found this tutorial
http://msdn.microsoft.com/en-us/library/dd938890.aspx#RetrievingLocationInformationthroughGPS
which looks very helpful but because I am new to visual studio I am having some problems.
1) is the article it says "This article includes complete sample code." but I cant find a download for all the code.
2) he only mentions referencing Microsoft.WindowsMobile.Samples.Location.dll which I have done but the class LatLong is still unknown
3) I made a sample program without the LatLong class just to experiment I get the following error on my device
"Microsoft.WindowsMobile.Samples.Location, Version=1.0.3448.25673, Culture=neutral, PublicKeyToken=null, or one of its dependencies, was not found
any idea what this means?
4) Could all my problems be because I am using visual studio 2005 and not 2008? I found a code project that looked really helpful but when trying to open it it says that it cant because it is from a newer version of the software, anything that can be done?
5) I find MSDN confusing for finding out what to reference to add a class for example this is the page for the LatLong class http://msdn.microsoft.com/en-us/library/cc514548.aspx
with the java online info the first thing you always see is where the class is found but it seems to be missing for this class. Other basig classes appear similar to java.
below is my sample code its basically taken from the article but I have commented out the references to LatLong and put in checks instead
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.WindowsMobile.Samples.Location;
namespace DeviceApplication3
{
public partial class Form1 : Form
{
private Gps gps;
int count = 0;
public Form1()
{
InitializeComponent();
gps = new Gps();
gps.Open();
}
private void button1_Click(object sender, EventArgs e)
{
textBox1.Text = (getGpsString());
}
private string getGpsString()
{
GpsPosition position = gps.GetPosition();
/*LatLong location = new LatLong();
if (position.LatitudeValid)
location.Latitude = position.Latitude;
if (position.LongitudeValid)
location.Longitude = position.Longitude;
if (position.HeadingValid)
location.Heading = position.Heading;*/
StringBuilder sb = new StringBuilder();
sb.Append("\n");
sb.Append("Latitude = ");
if (position.LatitudeValid)
{
sb.Append(position.Latitude.ToString() + "\n");
}
else
{
sb.Append("Not found yet\n");
}
sb.Append("Longitude = ");
if (position.LongitudeValid)
{
sb.Append(position.Longitude.ToString() + "\n");
}
else
{
sb.Append("Not found yet\n");
}
sb.Append("Heading = ");
if (position.HeadingValid)
{
sb.Append(position.Heading.ToString() + "\n");
}
else
{
sb.Append("Not found yet\n");
}
return sb.ToString();
}
}
}
Microsoft.WindowsMobile.Samples.Location.dll
is this file located in bin\debug and or \bin\release
?
and does it only give runtime errors or also compile time ?
no it compiles fine, can you see anything wrong with my code? The weird thing is the form comes up using the emulator but not on the device. Could it be because I have a custom rom that seems to have compact framework 3.5? I would assume it would be back compatible?
How have you deployed it to the device? Have you copied the .exe and the Location.dll?
one thing you could also test was if you could disable the stuff in the gps
and just run a program without it to verify that it's not missing net3.5's fault
heliosdev said:
How have you deployed it to the device? Have you copied the .exe and the Location.dll?
Click to expand...
Click to collapse
Hi thanks for this I didnt copy over the dll I'm very silly.
So what do you guys think about loading projects ment for vs 2008 in 2005 is this impossible ? or can i convert them somehow?
sure it's only the project and solution files which differ
add the cs files manualy and it should work fine
Use the same name to create the new project in vs2005 to have the same namespace.
You'll have to do some manual changes if the code uses c#3.0 .net 3.5 features.
Thanks guys your awesome,
very random and off topic but since your programming kings ill ask anyway,
I think I want to eventually work in the gaming industry, I'm close(3months) to finishing my MSc CompSci conversion course and I am looking for jobs, its quite aparent that most games companys don't want unexperienced people so do you guys have any ideas of places to apply for that will give the the necessary experience? btw I have no taught experience with C++ which I think is my biggest dissadvantage, I do know C and java quite well though and as you can tell just starting to play with C#.
your help is always appreciated.
well, continue with general programming (object oriented programming, ui development, database, network,...). There are so many different fields in software development!
For example take a look at the chapters of the books in the game programming gems series to see what (not only) gaming companies are working on. In general for beginning there is a lot of information online where you'll find tons of tutorials.
Try to get a profound base in programming.
Starting with your gps application, develop a gui, save/load the positions (database), visualize the points...
heliosdev said:
well, continue with general programming (object oriented programming, ui development, database, network,...). There are so many different fields in software development!
For example take a look at the chapters of the books in the game programming gems series to see what (not only) gaming companies are working on. In general for beginning there is a lot of information online where you'll find tons of tutorials.
Try to get a profound base in programming.
Starting with your gps application, develop a gui, save/load the positions (database), visualize the points...
Click to expand...
Click to collapse
Hi sorry for the late reply I upgraded to windows 7 last night to try and improve my rubbish laptop, seems to be a bit better btw,
anyway just want to say thanks for the advice. also my app will use google maps yahoo zonetag and windows live earth (or bing maps if thats what there calling it now) I think for some of thoes services I will need to pay to realease my app to the public even if its free but what about testers would I be able to give it to say 10 people?
Hello all.
I use Windows mobile 6.1.
I would really like to be able to run mobipocket reader (and some other software) concurrently. Running multiple instances of a program at once is really useful as we dont have to close something just to open another document.
Can anybody tell me if there is a way to do this?
It depends on the software itself. The original Pocket PC methodology as published by MS was that only one copy of a program should be in memory at one time, and that it should only open one document at a time. If you create a shell C++ application in VS Studio, it contains the following code in the InitInstance function.
Code:
//If it is already running, then focus on the window
hWnd = FindWindow(szWindowClass, NULL);
if (hWnd)
{
// set focus to foremost child window
// The "| 0x01" is used to bring any owned windows to the foreground and
// activate them.
SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
return 0;
}
The comments are inserted by the VS code wizard.
Basically the application looks for another instance of itself in memory. If it finds one, it activates that copy before terminating itself.
By starting a second copy of the program, you merely reactivate the first one.
WinCE has a 32 process limit but this is set to change with WinCE 6.0. we will probably have to wait until at least WinMo 7 for this to filter through.
thanx stephj
do you know if anyone has created such a shell already?
I have heard of js hexmaster but couldn't find it anywhere, besides it's for application developers
TIA
Haali Reader is an ebook reader I use (and prefer over mobipocket) that supports multiple instances.
thanks noidtluom, I knew that, but i'm in too deep with mobipocket.
Do you know any other good ebook readers that can open prc format created by mobipocket?
Would really be great if there were...
cheerz
any updates on hacks to run multiple instances of the same program at the same time?
you seem to be able to do this on PC:
http://www.makeuseof.com/tag/how-to-run-multiple-versions-of-the-same-program-on-your-pc/
and here:
http://filesharefreak.com/2008/08/08/how-to-run-multiple-instances-of-utorrent-v177-v18/
I had error ArgumentNullException was unhandled when run my coding.
Code:
public class ImageConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
byte[] buffer = value as byte[];
[B]Stream memStream = new MemoryStream(buffer);[/B]
WriteableBitmap wbimg = PictureDecoder.DecodeJpeg(memStream);
return wbimg;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return null;
}
}
The bold line is where the error occur..
Any solution to this error or any other suggestion for me to retrieve image into window phone? Thank you.
Well...
Well, I guess you enter your method with value as null. Your code snippet does of course not show just why value might be null.
Pardon me this innocent question: Why don't you just take the whole thing into the debugger and watch what happens?
Either value is null, or value is not a byte[].
It would be better to just cast it to byte[] instead. That way you would get a different error if it's not a byte[], than if it's null. This would be of some diagnostic value but as another poster mentioned your best bet is to run this in a debugger to see what's going on.
save the image name in database,
Sorry, may i know how to test it in debugger mode?Thank you.
Too early?
hueikar said:
Sorry, may i know how to test it in debugger mode?Thank you.
Click to expand...
Click to collapse
I don't want to offend you, and of course you are free to do whatever you like, but I think it's too early for you to build a full and maybe complicated WP7 app. Do you know the saying "First you have to learn to crawl before you can try to walk"? I think you should learn the fundamentals of using Visual Studio and programming for WP7 from some nice book or online tutorial first.
Even working with complete code samples, as you seem to try, does not help, if you ask me. At least it always was like that when I tried it myself: If in the past I tried to get some code samples to work that I did not understand myself, the first trivial problem already stopped me dead in my tracks. I only had success after my knowledge had progressed to a point where I could read and understand the samples.
Sorry. Yes. I admit that i am too rush to do a win7 app. This is my first time doing window phone app and so with the language c#. But i kinda run out of time to do learning..My first mistake is choose wrong title to do window phone app as my final year project..Luckily so far i manage to do the CRUD for the app.but this is the most difficult problem i am facing now..
Well, in answer to your question, Visual Studio has a Debug button. Select whether you want to debug on the emulator or on your phone (the latter requires that the phone be connected to the PC and Zune be running) and give it a try. If you want to use the media library while debugging, you'll need to use the WPConnect program (it's part of the dev tools, I believe) which allows you to close Zune after you establish the connection, thus unlocking the media library on the phone.
I have android central and no one has responded so i figure i would try here.
I hava a college class for "intro to java"
And would you know it we have java files that i would LOVE TO EDIT ON MY TABLET
I have found java code viewers and allow some tiny amount of editing but NO ONE ALLOWS me to run code.
Example:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner kb= new Scanner(System.in);
double page;
double pheight;
double pweight;
double bmr;
int activity;
double burned;
String a1="Sedentary, little or no exercise, desk job.";
String a2="Lightly active (light exercise 1 to 3 times a week).";
String a3="Moderately active (Exercise 3 to 5 times a week.";
String a4="Very active (Exercise 6 to 7 times a week).";
String a5="Extra active (Exercises two times a day. Includes running marathon etc).";
System.out.println("What is your age?");
page = kb.nextDouble();
System.out.println("What is your Height (in inches)?");
pheight = kb.nextDouble();
System.out.println("How much do you weight(in pounds)?");
pweight = kb.nextDouble();
bmr= 66 + 6.2*pweight + 152.4*pheight - 6.8*page;
System.out.println("Please enter the correct numbe rthat goes with our life style.");
System.out.println(a1+"|1.2|");
System.out.println(a2+"|1.375|");
System.out.println(a3+"|1.55|)");
System.out.println(a4+"|1.725|");
System.out.println(a5+"|1.9|");
activity =kb.nextInt();
burned = bmr*activity;
System.out.println("Your age is :"+ page);
System.out.println("Your height is :"+pheight +"in.");
System.out.println("You weight is :"+pweight+"lb.");
if (activity== 1.2)
{
System.out.println("The activity factor -"+a1);
}
if (activity== 1.375)
{
System.out.println("The activity factor -"+a2);
}
if (activity== 1.55)
{
System.out.println("The activity factor -"+a3);
}
if (activity== 1.725)
{
System.out.println("The activity factor -"+a4);
}
if (activity== 1.9)
{
System.out.println("The activity factor -"+a5);
}
System.out.println("The bmr is-"+ bmr);
System.out.println("You burned "+ burned);
}
}
No app that i can find can you this simple program and thus making my college class EXTREMELY hard
Please some one help
Sent from my GT-N8013 using xda app-developers app
Your Java instructor will surely have told y'all about compilation to bytecode with the JDK, running bytecode in the JVM, etc. There is no Java Virtual Machine (not to be confused with the Dalvik virtual machine) for Android, at least that I know of.
Your best options for running Java code "on" your tablet are:
SSHing to a server where you can compile your Java programs on the command line, presumably through some linked storage enabling you to do your editing on Android.
Editing your Java programs on your tablet and then using a website like http://ideone.com to run your code.
Honestly, though, this is going to be much more cumbersome than working on a laptop or desktop.
EDIT: See also this thread, especially the last post: http://forum.xda-developers.com/showthread.php?t=1452666
If you're comfortable with working in a terminal, I highly recommend TerminalIDE. It's what I used for the first term of Java programming in college last year (in fact, I think it was the only app that allowed Java compilation at the time).
There's also AIDE which is great for developing Android apps, but probably not so much for following along in class, since for even basic GUI stuff, you'd have to figure out how to do it the Android way (which is very different from swing), and I'm not sure how it'd handle console apps (maybe fine, but then you'd have to deal with switching windows to a terminal emulator, such as TerminalIDE, anyway... probably best to just use TerminalIDE from the start).