pixel range problem Topic is solved

[ronney tan]

I am trying to get a message-box popup if the color in the area 426,686 is any shade of black. My code fails badly , how can I get any shade of black?

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^q::
PixelGetColor, colorA, 426, 686,
    if (colorA >= "0x000000" ) AND (colorA <= "0x010101" )
msgbox, a shade of black
exitapp

[rommmcek]

Color is pure Black, Gray or White if its components (RGB) are equal.
So try:

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if ((colorA>>16)=(colorA>>8&0xff))&&((colorA>>16)=(colorA&0xff)) ;&&(colorA<0x010101) ; limit the allowed brightness
	msgbox, a shade of black

[ronney tan]

Color is pure Black, Gray or White if its components (RGB) are equal.
So try:

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if ((colorA>>16)=(colorA>>8&0xff))&&((colorA>>16)=(colorA&0xff)) ;&&(colorA<0x010101) ; limit the allowed brightness
	msgbox, a shade of black

thank you , that gave me a lot of not black items, i want black and dark grey more

[rommmcek]

How much black/dark items do you want? Just uncomment "limit the allowed brightness" and you'll get black and only one (the darkest) shade of gray: 0x010101 - providing you correct my typo to: (colorA<=0x010101). This is the limit you set in your code above. If you want to allow more shades just increase the number to e.g.: 0x333333 or what ever you want. (Note that 0xffffff would be the same as now)

bye!
Edit: Not very well explained, true? This one might be better:

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RcolorA:=colorA>>16, GcolorA:=colorA>>8&0xff, BcolorA:=colorA&0xff
if (RcolorA=GcolorA)&&(RcolorA=BcolorA)&&(colorA<0xffffff) ; to limit the brightness decrease 0xffffff to e.g. 0x333333 or the like.
   MsgBox % colorA " is black or shade of black"

Edit2: Actually your code isn't too bad neither! Adding the format:

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SetFormat, integer, Hex
if (colorA >= "0x000000" ) AND (colorA <= "0x010101" )
   msgbox, a shade of black

works fine, it just doesn't allow more shades!
Edit3: More shades you can get with a bit alterring it:

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if (colorA=0x000000)||(colorA=0x010101)||(colorA=0x020202) ;||(colorA=0x030303) ; etc

No need to use format!