XNA 3.0 Beta Changes

[shutout5591]

The purpose of this thread is for developers to post differences they have noticied from 3.0 CTP to Beta. This will make the process of converting and learning the Beta easier.

I will start off:

Beta:
MediaPlayer.PlayPosition - Get

CTP:
MediaPlayer.PlayPosition - Get, Set

Anybody know how to set the play position??

Also: Here is a link to the official connect site, where we can post feedback and read the feedback of others.

https://connect.microsoft.com/feedba...spx?SiteID=226

[Netrix]

Here is another change:

Beta:
MediaPlayer.MovePrevious();
MediaPlayer.MoveNext();

CTP:
MediaPlayer.Queue.MovePrevious();
MediaPlayer.Queue.MoveNext();

[fade3e]

just wondering, in hexic and poker they have the normal zunes ui popup when the music options are hit, is there now ways to do this like tiptups eblade or was that just programmed into those games

[sectionboy]

Originally Posted by Netrix

You can set the play position to a specific time by doing the following:

 MediaPlayer.PlayPosition.Subtract(MediaPlayer.PlayPosition + new TimeSpan(x,y,z));

...where x = hours, y = minutes, and z = seconds.

So if you just want to set the play position back to the beginning, all you have to do is this:

MediaPlayer.PlayPosition.Subtract(MediaPlayer.PlayPosition);

Have you tested it? It didn't work when I did, zune just ignored PlayPosition and kept going on its own pace.


I filed a suggestion on ms connect here:
https://connect.microsoft.com/feedba...080&SiteID=226

[Netrix]

Originally Posted by sectionboy

Have you tested it? It didn't work when I did, zune just ignored PlayPosition and kept going on its own pace.


I filed a suggestion on ms connect here:
https://connect.microsoft.com/feedba...080&SiteID=226

EDIT: Silly me... public TimeSpan Subtract(TimeSpan ts); returns:

A System.TimeSpan whose value is the result of the value of this instance minus the value of ts.

So no, it is not a bug. The problem is that MediaPlayer.PlayPosition is readonly.

[itsnotabigtruck]

Originally Posted by Netrix

You can set the play position to a specific time by doing the following:

 MediaPlayer.PlayPosition.Subtract(MediaPlayer.PlayPosition + new TimeSpan(x,y,z));

...where x = hours, y = minutes, and z = seconds.

So if you just want to set the play position back to the beginning, all you have to do is this:

MediaPlayer.PlayPosition.Subtract(MediaPlayer.PlayPosition);

Here is another change:

Beta:
MediaPlayer.MovePrevious();
MediaPlayer.MoveNext();

CTP:
MediaPlayer.Queue.MovePrevious();
MediaPlayer.Queue.MoveNext();

TimeSpan structs are immutable, so the Subtract function is actually returning a new TimeSpan with the modified result. Flipflopping the track should work though (not sure about the result if it's playing the first or last tracks)

[shutout5591]

Originally Posted by fade3e

just wondering, in hexic and poker they have the normal zunes ui popup when the music options are hit, is there now ways to do this like tiptups eblade or was that just programmed into those games

I believe this can be called with:

guide.Show();

I forget the actual syntax, but its a a guide,a nd its very easy to impliment.

[sectionboy]

Originally Posted by Netrix

EDIT: Silly me... public TimeSpan Subtract(TimeSpan ts); returns:


So no, it is not a bug. The problem is that MediaPlayer.PlayPosition is readonly.

Isn't that what the first post says? Now you know.

[Netrix]

Originally Posted by sectionboy

Isn't that what the first post says? Now you know.

No... It just says that Set is no longer implemented for PlayPosition. That does not necessarily mean that it is readonly.

As for Subtract() and Add(), at first I thought it would modify the PlayPosition directly by using them, but all they do is return the result, and leave the original variable untouched. The only way (that I know of so far) to change the PlayPosition is to do 'MediaPlayer.PlayPosition = new TimeSpan(...)', but that can not be done now, since it is readonly.

This is definitely a problem. I really hope that they change it back to the way it was before.

Another change:

MediaPlayer.MoveNext(); and MediaPlayer.MovePrevious(); do not work when used while MediaPlayer.State == MediaPlayer.Paused.

It used to advance to the next song while the MediaPlayer was paused, but now it causes the MediaPlayer.Queue.ActiveSong to become null, and the MediaPlayer.Queue.ActiveSongIndex to become -1. To get it to work correctly, the MediaPlayer must be playing.

[itsnotabigtruck]

Originally Posted by Netrix

No... It just says that Set is no longer implemented for PlayPosition. That does not necessarily mean that it is readonly.

As for Subtract() and Add(), at first I thought it would modify the PlayPosition directly by using them, but all they do is return the result, and leave the original variable untouched. The only way (that I know of so far) to change the PlayPosition is to do 'MediaPlayer.PlayPosition = new TimeSpan(...)', but that can not be done now, since it is readonly.

This is definitely a problem. I really hope that they change it back to the way it was before.

Another change:

It used to advance to the next song while the MediaPlayer was paused, but now it causes the MediaPlayer.Queue.ActiveSong to become null, and the MediaPlayer.Queue.ActiveSongIndex to become -1. To get it to work correctly, the MediaPlayer must be playing.

For a value type, if there isn't a set accessor for a property (which is the case here), the property is by definition read-only. Even if the Subtract function did modify the TimeSpan value in-place, you would only be modifying a copy of the TimeSpan.

[Netrix]

Originally Posted by itsnotabigtruck

For a value type, if there isn't a set accessor for a property (which is the case here), the property is by definition read-only. Even if the Subtract function did modify the TimeSpan value in-place, you would only be modifying a copy of the TimeSpan.

Well could the following not be the case?

public TimeSpan Variable
        {
            get { return actualVariable; }
        }

'actualVariable' could still be modified by the class in which it is, could it not? It would not be able to be set by other classes that only knows it by 'Variable', but its class should still be able to modify actualVariable.

Of course, that would still make it effectively readonly to everything except the class to which it belongs.

[itsnotabigtruck]

Originally Posted by Netrix

Well could the following not be the case?

public TimeSpan Variable
        {
            get { return actualVariable; }
        }

'actualVariable' could still be modified by the class in which it is, could it not? It would not be able to be set by other classes that only knows it by 'Variable', but its class should still be able to modify actualVariable.

Of course, that would still make it effectively readonly to everything except the class to which it belongs.

In that case, the property is considered read-only. The field isn't, unless it's declared with the readonly modifier (then it can only be modified by the constructor).

Since properties are pairs of functions, and value types used in return values are always passed by value, even a non-immutable struct can't be modified from a property (even a read/write property). This is because you're only modifying a copy of the struct.

[Netrix]

Originally Posted by itsnotabigtruck

In that case, the property is considered read-only. The field isn't, unless it's declared with the readonly modifier (then it can only be modified by the constructor).

Since properties are pairs of functions, and value types used in return values are always passed by value, even a non-immutable struct can't be modified from a property (even a read/write property). This is because you're only modifying a copy of the struct.

Oh.. Thank you for clarifying that. I forgot a couple things that I should know. That happens sometimes. I suppose it is obvious that the field itself is not readonly, since it is changed whenever a song is playing, but that is useless to us, since we have no way of accessing the field directly.

I apologize for spreading misinformation.

[LedZepp]

I dont think we need RIG anymore, turns out we can deploy .ccgame files now.
Try it:
Open your project, go to the Build file menu, then select Package XXXX as XNA Creators Club Game

Then just find the XXXX.ccgame file in the bin folder of your project.
When I tried it with a game it said the Target platform was Zune(Baked)
Baked is my zunes name, so Im not sure if a ccgame file is limited to your zune or if it just takes your zunes name out of your computer


Scratch that, You still need XNA to use ccgame files, but still this makes it alot easier to redistribute

[itsnotabigtruck]

Originally Posted by LedZepp

I dont think we need RIG anymore, turns out we can deploy .ccgame files now.
Try it:
Open your project, go to the Build file menu, then select Package XXXX as XNA Creators Club Game

Then just find the XXXX.ccgame file in the bin folder of your project.
When I tried it with a game it said the Target platform was Zune(Baked)
Baked is my zunes name, so Im not sure if a ccgame file is limited to your zune or if it just takes your zunes name out of your computer


Scratch that, You still need XNA to use ccgame files, but still this makes it alot easier to redistribute

But you have to have XNA.

Thanks to the new bundled games (which deploy the XNA runtime, whether they actually use it or not), the runtime issue will be eliminated with RIG DP Phase 6. This means that games will finally be able to be deployed without legal impediment.

[fade3e]

Originally Posted by shutout5591

I believe this can be called with:



I forget the actual syntax, but its a a guide,a nd its very easy to impliment.

i guess there is no way to add subitems\menus to that huh?