Roku Developer Program

[TheEndless]

"nowhereman" wrote:

"TheEndless" wrote:
I've also added a "RunScreenSaver()" method that currently simply consists of a "print" so I can see if it's being called. Eventually that will be replaced with code that draws an "roImageCanvas" with my custom screensaver content.

If RunScreenSaver() doesn't contain an event loop, it's probably just returning right away and falling out to the system screen saver. I just tried what you describe and got the same result. My print did not appear on the console and the default SS came on. Try putting up a blank canvas and implementing a simple event loop in RunScreenSaver().

Hrmmm... well, that produced different behavior, which is encouraging, but not the expected behavior. Instead of getting the default screensaver, the screen went black... my code paints it blue and puts text on it, so it's not mine. Interestingly, the wait loop on the screen that was up before the screensaver is still running, so I suspect the screensaver runs in different thread, which would explain why we don't get prints to the console. See anything obviously wrong with this code?

Sub RunScreenSaver()
	print "screensaver"
	
	background = {
		Color: "#0000FF",
		TargetRect: { x: 0, y: 0, w: 1280, h: 720 }
	}
	text = { 
		Text: "Screensaver", 
		TextAttrs: {
			Color: "#FFFFFF",
			Font: "Large"
		},
		TargetRect:{ x: 0, y: 500, w: 1280, h: 35 } 
	}	
	
	msgPort = CreateObject( "roMessagePort" )
	screen = CreateObject( "roImageCanvas" )
	screen.SetMessagePort( msgPort )
	screen.SetRequireAllImagesToDraw( false )
	screen.AddLayer( 1, background )
	screen.AddLayer( 2, text )
	screen.Show()

	While true
		msg = Wait( 1000, msgPort )
		If msg.isRemoteKeyPressed() Then
			screen.Close() 
			Return
		End If
	End While	
End Sub

[nowhereman]

"TheEndless" wrote:
See anything obviously wrong with this code?

Sub RunScreenSaver()
	print "screensaver"
	
	background = {
		Color: "#0000FF",
		TargetRect: { x: 0, y: 0, w: 1280, h: 720 }
	}
	text = { 
		Text: "Screensaver", 
		TextAttrs: {
			Color: "#FFFFFF",
			Font: "Large"
		},
		TargetRect:{ x: 0, y: 500, w: 1280, h: 35 } 
	}	
	
	msgPort = CreateObject( "roMessagePort" )
	screen = CreateObject( "roImageCanvas" )
	screen.SetMessagePort( msgPort )
	screen.SetRequireAllImagesToDraw( false )
	screen.AddLayer( 1, background )
	screen.AddLayer( 2, text )
	screen.Show()

	While true
		msg = Wait( 1000, msgPort )
		If msg.isRemoteKeyPressed() Then
			screen.Close() 
			Return
		End If
	End While	
End Sub

AddLayer() is not a member of roImageCanvas. It should be SetLayer().

[TheEndless]

"nowhereman" wrote:
AddLayer() is not a member of roImageCanvas. It should be SetLayer().

Ugh... I knew that... I guess the runtime error on that one was posted to the other thread as well. 😛

That was it. Thanks for your help! I really appreciate it!

Steve

[TheEndless]

Ok.. new issue. With the screensaver, I never seem to get the IsScreenClosed() event that the Clock SDK example suggest I should. In fact, I never seem to get any events in my wait loop. In general, that's not a big deal for the screensaver, but my app seems to lose focus when the screensaver comes up, and I never get it back. I don't know if they're related or not, but I suspect it has something to do with my wait loop never exiting, because I have no way to detect when the screensaver is closed. Any ideas?

[TheEndless]

Scratch that. It seems the same thing happens when the default screensaver is used. I'll start a new thread.