Problem with item icon

[giammy]

I have a problem with items in Treegdaget and ListIconGadget

I use a .png image 16x16 but Treegadget and listicongadget stretch this image to 20x20 (windows 7)



see image please



could someone help me?

thanks in advance

[MachineCode]

I guess it's stretching it to fit the text height. Not much you can do in that case.

[giammy]

I guess it's stretching it to fit the text height. Not much you can do in that case.

I used default font

If I decrease the font size the result does not change:

[MachineCode]

What happens if you increase the font height?

[giammy]

What happens if you increase the font height?

same result!!

[MachineCode]

Got me buggered, then.

[USCode]

I haven't seen this behavior with my 32bit application in Win7 64bit.
Maybe try one of the icons that PB uses and see if it exhibits the same behavior?
http://www.famfamfam.com/lab/icons/silk/

[giammy]

I haven't seen this behavior with my 32bit application in Win7 64bit.
Maybe try one of the icons that PB uses and see if it exhibits the same behavior?
http://www.famfamfam.com/lab/icons/silk/

same result! the icons are stretched!



suggestions???

[Kuron]

I use a .png image 16x16 but Treegadget and listicongadget stretch this image to 20x20 (windows 7)

What is the default size on Windows 7? What is the default size for High-DPI Windows 7 installs?

20x20 sounds "about right" and there is likely a reason Windows 7 is stretching it to 20x20.

[giammy]

I use a .png image 16x16 but Treegadget and listicongadget stretch this image to 20x20 (windows 7)

What is the default size on Windows 7? What is the default size for High-DPI Windows 7 installs?

20x20 sounds "about right" and there is likely a reason Windows 7 is stretching it to 20x20.

thanks a lot Kuron!!

I found this useful links:
http://msdn.microsoft.com/en-us/library ... 85%29.aspx
http://msdn.microsoft.com/en-us/library ... patibility

"Since the introduction of Windows Vista, users are more frequently following the recommended advice to change DPI settings as a way to enlarge the size of the text and UI elements on high-DPI displays. As more manufacturers ship greater numbers of high-resolution displays, the default 96-DPI setting can no longer be assumed by applications"

I wrote this small code to retrieving DPI increasing percentage in windows

Code: Select all

OpenWindow(0,0,0,400,400,"Hello!")
StandardDPIResolution = 96
CurrentDPIResolution = GetDeviceCaps_(GetDC_(WindowID(0)), #LOGPIXELSX)
If CurrentDPIResolution > StandardDPIResolution
  IncreasingPercent.d=(CurrentDPIResolution-StandardDPIResolution)/StandardDPIResolution*100  
  Debug Str(IncreasingPercent)
EndIf

is it a correct approach?

and the question is:
How to write a DPI-aware application to making a UI look consistently good across a wide variety of high-DPI display settings????
(storing different images in the app???)

I have the same problems in other os???

Your suggestions will be greatly appreciated!!!

[Kuron]

there is likely a reason Windows 7 is stretching it to 20x20.

What I was subtly trying to imply is if Windows 7 was going to stretch the images to 20x20, there is likely a reason (what the reason is, I don't know) and it might be best to just use 20x20 images since this appears to be what Windows 7 is wanting.

I am not sure what the reason is, but it really doesn't matter IMHO as knowing the reason doesn't change the fact that Windows 7 appears to be wanting 20x20 images for this. Sometimes it is better to just do what Windows wants and not question the "why".

I am not at my Windows 7 machine so I can't check what size such things are on my machine, but IIRC, they are bigger than "16x16". Perhaps 20x20 is default size for such things now? I don't know.

[Kiffi]

suggestions???

just load your 16*16 picture and add a white
two pixel canvas border on each side.

Greetings ... Kiffi

[MachineCode]

Nice one, Kiffi.

giammy, quite frankly I don't think the image in your first post looks bad at all anyway... so perhaps don't worry so much about it? As a user of your app I'd think it looks fine, and never even question it.

[giammy]

thanks to all!!

[USCode]

You didn't happen to turn on the windows 7 text stretch feature, did you? Maybe it's set to 125%? Probably not but it was a thought.