createImage(width, height, RGB)

Programming Questions

alphachap

createImage(width, height, RGB)

in Programming Questions • 2 years ago

I am modyfing an old program I found.

...

PImage offs; // Offscreen image
PGraphics grf; // Offscreen graph port

...

    // Off screen bitmap image
    offs = createImage(width, height, RGB); //<<<<----ERROR
    grf = offs.loadPixels();

...

But I get this error:

The method createImage(int,int) in the type Component is not applicable for the arguments (int,int,int)

Do you know the problem? Is it in these instructions or somewhere else? Thanks

Replies(3)

PhiLho

Re: createImage(width, height, RGB)

2 years ago

Where are you trying to create the image? The " in the type Component" part is suspicious...

alphachap

Re: Re: createImage(width, height, RGB)

2 years ago

The first lines of the program are:

import java.awt.*;

void setup() {
size(125,125);
background(153);
noLoop();
}//setup()

void draw() {
int imax=2;
for (int i=0; i<imax; i++) {
print(".");
}
PGraphics gr;
colorpicker cp = new colorpicker();
cp.init();
}//draw()

public class colorpicker extends java.applet.Applet {
color fColor;
int cx,cy,cw,ch;
int xsep,ysep;
int px,py,sy;
int satx,saty,satw,sath;
int mainx,mainy,mainw,mainh;
double hValue,sValue,bValue;
int pox[],poy[];
PImage offs; // Offscreen image
PGraphics grf; // Offscreen graph port
....

Maybe the component has to do with the import.

Since it says 1996, I expect it not to work.

PhiLho

Re: createImage(width, height, RGB)

2 years ago

Apparently, the createGraphics is called from within the colorpicker class, so it has to be in the form of pa.createGraphics() where pa is the PApplet instance.
Usually, you pass this instance in the class' constructor, like: colorpicker cp = new colorpicker(this); and you store this instance in one field of the class.