ScrollAreaGadget Repaint ImageGadget?

[ricardo]

Hi,

Im using a ScrollAreaGadget and using some imageGadget, but when i scroll it manually and moving back the images do not repaint and it dissapear.

Any help are wecome

Thanks

[ChrisR]

ARGENTINA WORLD CHAMPION

I won't answer because Leo Messi and his gang beat France in final, Na

[ricardo]

ARGENTINA WORLD CHAMPION

I won't answer because Leo Messi and his gang beat France in final, Na

Then you will loose again with Argentina !!

[ChrisR]

Okay, I'm not going to lose 2 times, but without Messi's gold magic feet, it's going to be very hard for you in 2026, so enjoy it now
A big respect to him, he deserved to have a World Cup on his palmares.

For your trouble, it's difficult without a source to know what might be suitable.
If you're on Windows, maybe try with a RedrawWindow function, with the right flags, maybe something like this:

Code: Select all

Procedure BindScrollArea()
  If EventType() = 0
    RedrawWindow_(GadgetID(#ScrollArea), #Null, #Null, #RDW_INVALIDATE | #RDW_ERASE | #RDW_ALLCHILDREN | #RDW_UPDATENOW)
  EndIf
EndProcedure
.............
; ! SetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE, GetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE) | #WS_CLIPCHILDREN)
BindGadgetEvent(#ScrollArea, @BindScrollArea())

[ricardo]

Okay, I'm not going to lose 2 times, but without Messi's gold magic feet, it's going to be very hard for you in 2026, so enjoy it now
A big respect to him, he deserved to have a World Cup on his palmares.

For your trouble, it's difficult without a source to know what might be suitable.
If you're on Windows, maybe try with a RedrawWindow function, with the right flags, maybe something like this:

Code: Select all

Procedure BindScrollArea()
  If EventType() = 0
    RedrawWindow_(GadgetID(#ScrollArea), #Null, #Null, #RDW_INVALIDATE | #RDW_ERASE | #RDW_ALLCHILDREN | #RDW_UPDATENOW)
  EndIf
EndProcedure
.............
; ! SetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE, GetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE) | #WS_CLIPCHILDREN)
BindGadgetEvent(#ScrollArea, @BindScrollArea())

Thank you. Works!! with a little 'flickering' in the images when moving the scrool, it is not 100% smooth.

**Calm down, wait... in one or two generations you will be able to see France win again. Because Argentina is not only Messi, sorry for opening your eyes.

[ricardo]

Im not sure about this

Code: Select all

! SetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE, GetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE) | #WS_CLIPCHILDREN)

I tried to run it inad get a prompt about ilegal assembler error.

Then is used

Code: Select all

SetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE, GetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE) | #WS_CLIPCHILDREN)

I tried in 5.72 and 6.00 PB versions and get some error in both.

And it works, but with some flickering.

[ChrisR]

**Calm down, wait... in one or two generations you will be able to see France win again. Because Argentina is not only Messi, sorry for opening your eyes.

Yes, of course, it's not just Messi in Argentina, there was also Maradona, the fabulous Tango and my favorite shampoo ushuaïa
And,..... also the best soccer player in the world Messi, without him as a driving force, it's dead, sorry also

Code: Select all

SetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE, GetWindowLongPtr_(GadgetID(#ScrollArea), #GWL_STYLE) | #WS_CLIPCHILDREN)

It was commented with a ! because I don't know whether it's useful or not but it should work normally.
For flickering, there may be a need for WM_SETREDRAW but I don't know where it should be added ?

Code: Select all

SendMessage_(GadgetID(#ScrollArea), #WM_SETREDRAW, #False, 0)
....
SendMessage_(GadgetID(#ScrollArea), #WM_SETREDRAW, #True, 0)
RedrawWindow_(GadgetID(#ScrollArea), #Null, #Null, #RDW_INVALIDATE | #RDW_ERASE | #RDW_ALLCHILDREN | #RDW_UPDATENOW)

[ricardo]

Code: Select all

SendMessage_(GadgetID(#ScrollArea), #WM_SETREDRAW, #True, 0)
RedrawWindow_(GadgetID(#ScrollArea), #Null, #Null, #RDW_INVALIDATE | #RDW_ERASE | #RDW_ALLCHILDREN | #RDW_UPDATENOW)

Great man !! This works for the flicker as far as i tried. Thanks so much.

---------------------

About you other comments... im worried about your mental healt.

To begin with, I would advise you to brush your teeth when you say wrong things about the GREAT Argentine National Team.

You are missing a large number of players to mention, for example our goalkeeper is a hero and Di Maria is a genius, De Paul, Mc Allister and many others.
Continuing with the traditional humility that characterizes Argentines, I am going to ask you that when you mention those names you stand up please

Did Di Maria make French people suffer? Yes, I'm sorry. But he cant stop for making goals.

PS: Argentina did not have to 'import' players to win. They are all gauchos born in the Argentine Pampas, where Tango and Soccer are lived as a religion... and speaking of religion, even the Pope is Argentine. Be careful what you say, Francisco can look at this chat and send you to the pugatory ha ha

---------------------

Once again, thank you so much!!

[ricardo]

If a create dinamically images on ther scroll area, flickering comes back

[ChrisR]

About you other comments... im worried about your mental healt.

To begin with, I would advise you to brush your teeth when you say wrong things about the GREAT Argentine National Team.

You are missing a large number of players to mention, for example our goalkeeper is a hero and Di Maria is a genius, De Paul, Mc Allister and many others.
Continuing with the traditional humility that characterizes Argentines, I am going to ask you that when you mention those names you stand up please

Did Di Maria make French people suffer? Yes, I'm sorry. But he cant stop for making goals.

PS: Argentina did not have to 'import' players to win. They are all gauchos born in the Argentine Pampas, where Tango and Soccer are lived as a religion... and speaking of religion, even the Pope is Argentine. Be careful what you say, Francisco can look at this chat and send you to the pugatory ha ha

I'll let you have the last word, after all you've won.
Fully agree about Di Maria, he was very appreciated when he played in France.
As for goalkeeper Martínez, he was very good at the World Cup, but unfortunately for him, the image that remains here is this one. The coke he'd taken must not have been very fresh.

Not sure Pope Francisco appreciates too! well, we'll do purgatory together.

For the dynamic images, I don't know, WM_SetRedraw and RedrawWindow_() often do the trick for flicker, but it's not always easy on Windows.

[ricardo]

Well, since in France they started playing soccer very few years ago, maybe weeks ha ha or at least, they were not known, maybe they have a distorted opinion.

The opinion that anyone who watches the World Cup coldly should remember goalkeeper Martínez as a great goalkeeper. His achievements in stopping penalties, in the World Cup and in the Copa America against Brazil, have been legendary.

In general, there are a large number of Argentine players who shine in their different leagues.

This is sure that Pope Francis applauded the final match and I know it because he is a well-known soccer fan, he is a fan of the San Lorenzo club.

I believe that the Pope should kick the ball well, like every Argentinian.

Maybe you can hire him as technical director of the French team

[Mesa]

Im using a ScrollAreaGadget and using some imageGadget, but when i scroll it manually and moving back the images do not repaint and it dissapear.

It shouldn't because imagegadget as canvasgadget are persistant, like that:

Tested on WIndows, images do not disapear:

Code: Select all

If OpenWindow(0, 0, 0, 405, 240, "ScrollAreaGadget", #PB_Window_SystemMenu | #PB_Window_ScreenCentered) 
	ScrollAreaGadget(0, 10, 10, 390,220, 575, 575, 30)
	
	
	x=10
	y=10
	
	
	For i=1 To 8
		CreateImage(i, 32,32,24,#White)
		StartDrawing(ImageOutput(i))
		Box(0,0,32,32,RGB(Random(255),Random(255),Random(255)))
		StopDrawing()
		ImageGadget(i,x,y,32,32,ImageID(i))
		x=x+42
		StopDrawing()
	Next i
	CloseGadgetList() 
	
	Repeat 
		Select WaitWindowEvent() 
			Case  #PB_Event_CloseWindow 
				End 
			Case  #PB_Event_Gadget 
				Select EventGadget()
						
				EndSelect
		EndSelect 
	ForEver 
EndIf

Code: Select all

If OpenWindow(0, 0, 0, 405, 240, "ScrollAreaGadget", #PB_Window_SystemMenu | #PB_Window_ScreenCentered) 
	ScrollAreaGadget(0, 10, 10, 390,220, 575, 575, 30)
	CanvasGadget  (1, 0, 0, 575, 575)
	CloseGadgetList() 
	
	x=10
	y=10
	
	
	For i=0 To 8
		CreateImage(i, 32,32,24,#White)
		StartDrawing(ImageOutput(i))
		Box(0,0,32,32,RGB(Random(255),Random(255),Random(255)))
		StopDrawing()
		StartDrawing(CanvasOutput(1))
		DrawImage(ImageID(i),10+x,y)
		x=x+42
		StopDrawing()
	Next i
	
	
	Repeat 
		Select WaitWindowEvent() 
			Case  #PB_Event_CloseWindow 
				End 
			Case  #PB_Event_Gadget 
				Select EventGadget()
						
				EndSelect
		EndSelect 
	ForEver 
EndIf

Mesa.