ImageMakeColorTransparent

Description

Creates an image and sets a transparent color.

Returns

Image object

Syntax

imageMakeColorTransparent(img, color__)

History

ColdFusion 10: Added this function

Properties

Parameter	Description
img	Required. The ColdFusion image on which this operation is performed.
color	Required. The transparent color: Hexadecimal value of RGB color. For example, specify the color white as "##FFFFFF" or "FFFFFF". String value of color (for example, "black", "red", "green"). The default value of the transparent color is "black".List of three numbers for (R,G,B) values. Each value must be in the range 0-255.

Parameter

Description

img

Required. The ColdFusion image on which this operation is performed.

color

Required. The transparent color:

Hexadecimal value of RGB color. For example, specify the color white as "##FFFFFF" or "FFFFFF".
String value of color (for example, "black", "red", "green").
The default value of the transparent color is "black".List of three numbers for (R,G,B) values. Each value must be in the range 0-255.

Example

<cfset myImage=ImageNew("",200,110)> 
<!--- Set the drawing color to green. ---> 
<cfset ImageSetDrawingColor(myImage,"green")> 
<!--- Turn on antialiasing to improve image quality. ---> 
<cfset ImageSetAntialiasing(myImage,"on")> 
<!--- Draw a filled green oval on the image. ---> 
<cfset ImageDrawOval(myImage,5,5,190,100,"yes")> 
<!--- Display the image in a browser. ---> 
<cfoutput>PNG image<br></cfoutput> 
<cfset ImageWrite(myImage,"#expandpath('.')#/png.png")> 
<cfset myImage = ImageRead("#expandpath('.')#/png.png")> 
<cfimage source="#myImage#" action="writeToBrowser" > 
<cfset x =ImageMakeColorTransparent(myImage,"green")> 
<cfimage source="#x#" action="writeToBrowser" >

ImageMakeColorTransparent

Applies to

Description

Returns

Syntax

History

Properties

Example