[Closed] colorpick from bitmap?

Here is a quick test:

rollout ccp_test "Custom Color Picker Test"
(
	local theMap = gradient_ramp gradient_Type:8
	local theBmp = (renderMap theMap)
	imgtag img_display width:200 height:200 bitmap:theBmp 
	colorpicker clr_picker 
	label lbl_pos 
	on img_display lbuttondown thePos theFlags do 
	(
		theColor = getPixels theBmp thePos 1
		lbl_pos.text = thePos as string + " : " + theColor[1] as string
		clr_picker.color = theColor[1]
	)
)
createDialog ccp_test 250 260

thanks bobo,
it helped me to get going.

but i’m having problems with loading external bitmaps in a bitmap

so it s the same code that you hav, only i’m using a custom bitmap and load it in using “filename” parameter.
but the result of the bitmap stays gray and the color picker keeps giving me a color 0 0 0.

Any ideas how i need to load the bitmap in?

thanks

rollout ccp_test "Custom Color Picker Test"
(
	
	local bm = bitmap 200 200 filename:"$scripts\\PolyPainter\\ColorRange.bmp"
	imgtag img_display width:200 height:200 bitmap:bm 
	colorpicker clr_picker 
	label lbl_pos 
	on img_display lbuttondown thePos theFlags do 
	(
		theColor = getPixels bm thePos 1
		lbl_pos.text = thePos as string + " : " + theColor[1] as string
		clr_picker.color = theColor[1]
	)
)
createDialog ccp_test 250 260

Creating a bitmap with a filename does NOT open the existing bitmap, it creates a NEW empty bitmap that would overwrite your existing one if you would call SAVE on it!

You have to use the OpenBitmap() method to read a bitmap from disk.

Bitmap Values[left]
[/left]

[left]openBitMap <filename_string>
[/left]
[left]Returns a bitmap value containing the contents of the specified bitmap file. The bitmap value returned is a load-only bitmap.
[/left]

[left]
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