CreateImage

[ic3_water]

function CreateImageEx takes string S, real SizeX, real SizeY, real PosX, real PosY, real PosZ, boolean Show returns image
  local image i = CreateImage(S, SizeX, SizeY, 0, PosX - (SizeX / 2), PosY - (SizeY / 2), PosZ, 0, 0, 0, 2) // image type indicator
  call SetImageRenderAlways(i, true)
  call ShowImage(i, Show)
  return i
endfunction

Im using this function to create image but it crate ugly border too Any1 can help me to fix this THx

 

[WaterKnight]

Yes, that's how it is and the reason why image textures should be drawn with a transparent border, to not be visible.

 

[PurgeandFire]

See this tutorial:
http://world-editor-tutorials.thehelper.net/cat_usersubmit.php?view=66955

As WaterKnight said, you need a transparent border. For icons, this can usually be achieved with a transparent 1 px border. To achieve this easily, download BLP Lab:
http://www.hiveworkshop.com/forums/tools-560/blp-lab-v0-5-0-a-137599/

Open your BLP with it, then go to "File -> Save As". Click "Alpha Channel", and tick "Transparent 1 pixel border".