PixelGetColor speed issues

[trancexx]

Would you stop trolling, the guy already said what's it about.

[JLogan3o13]

  On 1/17/2014 at 2:24 PM, trancexx said:

Would you stop trolling, the guy already said what's it about.

 

How is this kind of post anything but trolling?

[JohnOne]

  On 1/17/2014 at 6:57 AM, Xibalba said:

My endgame is live Picture- and Video-analysis and manipulation - so speed is of most importance.

Rest assured though, it's not against any of the forum rules.

If anyone know the GDIPlus equivalent to PixelGetColor(), with a minimalistic example using what is currently shown on the screen, I'd be very grateful.

Thx

Would that not just be a call to GetPixel()

[trancexx]

  On 1/17/2014 at 2:38 PM, JLogan3o13 said:

How is this kind of post anything but trolling?

Fucking read it before commenting it to see how.

[JLogan3o13]

I did read it, just don't see the point of mewling about it

 

BTW - "Cursing is the last vestige of the small minded"

Or - "Prestani kukati i jebanja." if you prefer

[Melba23]

trancexx,

You make pointed comments like that - you can expect to get pointed responses.

And please moderate your language in future - there is absoutely no need to use such terms in a programming forum.

M23

[Bert]

  On 1/17/2014 at 4:07 PM, Melba23 said:

trancexx,

You make pointed comments like that - you can expect to get pointed responses.

And please moderate your language in future - there is absoutely no need to use such terms in a programming forum.

M23

Thank you.

[trancexx]

Oh, isn't that absolutely lovely. Go away.

 

 

@Xibalba, gdip solution could be suggested GetPixel(), which written in AutoIt using flat API would be (pay attention that you get ARGB value):

Func GdipBitmapGetPixel($pBitmap, $iX, $iY)
    Local $aCall = DllCall($ghGDIPDll, "long", "GdipBitmapGetPixel", _ ; uses internal _GDIPlus dll handle
            "ptr", $pBitmap, _
            "long", $iX, _
            "long", $iY, _
            "dword*", 0)
    If @error Or $aCall[0] Then Return SetError(1, 0, 0)
    Return $aCall[4] ; ARGB
EndFunc

Latest standard GDIPlus.au3 has this function also, it's called _GDIPlus_BitmapGetPixel().

 

Just to show that it works here's small example of drawing section of screen using absolutely dumb method of colored labels which rapes the AutoIt GUI feature:

expandcollapse popup

#include <GDIPlus.au3>
#include <ScreenCapture.au3>

_GDIPlus_Startup()

Global $hBMP = _ScreenCapture_Capture("")
Global $pBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hBMP)

; Display 100 X 150 region of screen with pixel size of 2 (granulation)
CreateGUI_Thing($pBitmap, 100, 150, 2)


_GDIPlus_BitmapDispose($pBitmap)
_WinAPI_DeleteObject($hBMP)

_GDIPlus_Shutdown()



Func CreateGUI_Thing($pBitmap, $iX_Size, $iY_Size, $iPixelSize)
    GUICreate("My Super Duper Capture", $iX_Size + 20, $iY_Size + 20)

    ; Draw little labels colored based on pixel color of the gdip bitmap
    Local $iColor
    For $i = 1 To $iX_Size Step $iPixelSize
        For $j = 1 To $iY_Size Step $iPixelSize
            $iColor = BitAND(_GDIPlus_BitmapGetPixel($pBitmap, $i, $j), 0xFFFFFF) ; RGB portion of the color extracted
            GUICtrlCreateLabel("", 10 + $i, 10 + $j, $iPixelSize, $iPixelSize)
            GUICtrlSetBkColor(-1, $iColor)
        Next
    Next

    GUISetState(@SW_SHOW)
    While 1
        If GUIGetMsg() = -3 Then ExitLoop
    WEnd
    GUIDelete()
EndFunc

So the idea would be to capture the screen into bitmap object and read pixel from that. I'm not sure that's the best idea because screen capturing takes time also.

[Melba23]

trancexx,

  Quote

Oh, isn't that absolutely lovely. Go away.

Absolutely no chance.

M23

[trancexx]

  On 1/17/2014 at 8:21 PM, Melba23 said:

trancexx,

Absolutely no chance.

M23

I hope you aren't stalking me again. I told you last time that you scare me when you do that. Just don't .

[Melba23]

trancexx,

You flatter yourself - nothing would please me more than never having to have anything to do with you ever again. So you stop causing me to be called into threads to moderate and then I will have no reason to be there. Your choice.

M23

[JohnOne]

Imagine if you two had babies.

Do the sex, and have some babies

[JLogan3o13]

<Watching Melba retch into a bucket at the thought>

 

@Xibalba, we will actually get back to answering your question after a short interlude

[Bert]

  On 1/17/2014 at 9:29 PM, JohnOne said:

Imagine if you two had babies.

Do the sex, and have some babies

We do not wish for our friendly neighborhood moderator to be ......