Avatar size on upload

Hi,Please any one knows how to set max and min width/height of avatar photo on upload?
So if User tried to upload any photo bigger or smaller than max or min allowed (width/height)..so display error!
Thank you

you mean plugin avatar or just want to resize avatars size ? i didnt get you at all sorry )

Thank you for replay....
all what i want: to prevent user to upload photo with width < 193 px and height < 290px.
thank you

so just have a change in css file seek it for the script photo size and rechange how you want thats all !

No....in css will not give you the exact effect..cuz it will not resize it well.
We need to get image size on upload in php and if it dosen't equal our rules (width and height) then reject it and display error.....
I tried to play with the php file from ajax avatar as it has this option, But i couldn't figure out how to do it for normal uploading...
please if any one can help..i will be so grateful .

Gooos...i know...but this is max-width and max-height....
I need min-width and min-height...
Now you can try..user even can upload 16px icon as avatar!!!!

I SOLVED IT...here is how to do it:
In class_upload.php
1-Find (// OUTPUT: BOOLEAN INDICATING WHETHER UPLOAD SUCCEEDED OR FAILED)
2-Find

Code:

function upload_photo($photo_dest, $file_maxwidth = "", $file_maxheight = "")
replace with
function upload_photo($photo_dest, $file_maxwidth = "", $file_maxheight = "",$file_minheight = "290",$file_minwidth = "193" )

3-Find

Code:

// SET MAX WIDTH AND HEIGHT
 
      if( !$file_maxwidth  ) $file_maxwidth  = $this->file_maxwidth ;
 
      if( !$file_maxheight ) $file_maxheight = $this->file_maxheight;
Add after it
if( !$file_minheight  ) $file_minheight  = $this->file_minheight ;
 
      if( !$file_minwidth ) $file_minwidth = $this->file_minwidth;

4-Finally Find

Code:

// RESIZE IMAGE AND PUT IN USER DIRECTORY
 
Add before it
if( $width < $file_minwidth)
{die('The width must be min 193px.');}
if( $height < $file_minheight)
{die('The height must be min 290px.');}

DONE

Hm thats perfect does it work well ?

Thank you for sharing abatu