Screenshot in BlitzMax ???

can everyone help me ?

I'm not sure even Clippy the irritating paperclip could make a guess at this. However...

GrabPixmap()
SavePixmapJPEG()
SavePixmapPNG()

If that doesn't help or isn't what you're after, you could try posting more words.

you can probably modify this to make it work. You'll need to take out the date and time functions:

' -----------------------------------------------------------------------------
' ccScreenShot
' -----------------------------------------------------------------------------
Function ccScreenShot()
'		ccFlip() 'don't need to flip to see the current one first!
		Local gfxGrab:TPixmap
		gfxGrab = GrabPixmap(0,0,ScreenWidth, ScreenHeight) 
		Local DateTime:TDateTime = New TDateTime
		DateTime.Set_DateTimeCurrent()
		'Output filename with reverse date and time for sorting
		Local filename$ = TDateTime.Get_String(DateTime,"YYYY-MM-DD HHNNSS screenshot.png")
		SavePixmapPNG(gfxGrab, ccAddSlash(CurrentDir())+filename, 9)
End Function