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The .net compact framework on smartphones doesn't know the button component, the reasons are unknown to me. My question is: how do people usually get over this problem? I have know smartphone near me to check out, only a pda phone, which of course has touch screen and supports the button component.
What would you do ?
The lack of buttons is intentional as it violates Microsoft guidelines for smartphone platform. Instead you should use the menu, which for a thumb operated device is faster. It also helps to provide a common interface for all phone's applications.
If you need to have a button, you can easily create one of your own. see also this question.
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I want to make my Atmega robot to operate multiple modes (line following, obstacle avoidance, direct guidance from PC ) How can I load these separated programs on flash and how to select one of them when restarting the robot?
The easiest way is to make one big program with all the functionality of all the modes. On startup, in main() check if certain buttons are pressed, then choose which mode you are going to operate in. Then only use the functions and control mechanisms for that mode from then on. The rest of the code just sits there unused, but it would anyway in any other scheme.
There isn't an easy way to break the code into several different complete programs. For example, the vector table is fixed to be where it is. You would have to have the interrupt handlers check to see which mode is active then call the appropriate function for that mode.
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I was looking at the Soundlcoud Widget docs
http://developers.soundcloud.com/docs/widget#
I noticed there is a parameter for 'download'. I tried it on the HTML5 sharing widget it didn't turn on the download link. Is there a way to show the Download link?
Example
http://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F46911134&auto_play=false&show_artwork=true&color=ff7700&download=true&sharing=false
Thanks
This is actually the intended behaviour. A lot of the time, the widget is displayed in a relatively small frame, and showing all the buttons creates too much visual clutter. A redesign (to use icons, for example) is coming, but I can't give you a date on when that will be ready. In the meantime, the documentation will be updated.
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Finally i finished my web application and i am ready to show it to the world .. but first i need to a make a kind of demo video of the app, what tools would help me with such task ?
There will be video captures of the screen, some images off course and text ? any recommendations ?
Thanks in advance
Camtasia Studio is the gold standard for this kind of work and is very full featured, but it's a bit pricey. Somewhat more inexpensive and quite good but less full featured is My Screen Recorder Pro.
i think microsoft live meeting has a way to record meetings. What you do is to set up a live meeting with yourself( i know sounds stupid) and then you share your screen with the attendees (its you) and press record meeting. That should work.
But maybe there is something easier out there....
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I'd like to try and create a program playing a game. I.e. "a bot".
I want to be able to directly access the pixels on the screen. I.e. have my program "see" a game and then "make a move"(or at least draw a picture of what move it would make).
Both Windows and Linux advice is appreciated, though my guess is that it should be easier to do on Linux.
I'm guessing this could be done with some X/Gnome call?
I'm not afraid of C, even complex samples are welcome.
SDL is a cross-platform library that allows you to directly access framebuffer pixels. You can learn about accessing the pixels on screen through the pixel access example on the documentation wiki.
Generally speaking, bots don't see the game graphics but see the underlying data structure instead, unless you are trying to do something related to computer vision.
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I want to write software in visual basic that reads the barcode of various items into my program. Any suggestions for how to do this?
If you have a hardware barcode scanner to hand it will almost certainly imitate a keyboard, and send the barcode as keystrokes (no special code required, just a textbox and it will put it in there once it is focused).
If you go to the manufacturers website, you will find exactly what it does, and even special barcodes for programming your scanner (such as sending newlines at the end of barcodes, etc).
Otherwise, see my comment to your question above.
You don't need code to read the barcode scanner. It usually comes into the system exactly like it came from the keyboard. Make your app work for the keyboard and you are there.