how to use rgb color?

I want to create a program that when I click, it will display a square with rgb color(fill).
and everytimes I click, a new square with different color will appear.
please provide rgb code.
>>
or any other idea, the concept is to display different color everytimes I click the mouse. (it doesnt have to be rgb.)
>>
thanx!

Hi,

U can set a color to graphics object as below:

g2obj.setColor(Color.blue);


You can also create your own color objects:


1. Color ( int red, int green, int blue)

parameter values between 0 and 255

2. Color ( int red, int green, int blue , int alpha )

4th parameter transparency measure

0 - transparent

255 - opaque



also exist with float parameters…….

3. Color ( float red, float green, float blue)

4. Color ( float red, float green, float blue , float alpha )

parameter values between 0.0 and 1.0

After deciding upon the sequence of colors, Use MouseMotionListener and change color

You can get the the device context of the dialog and OnLButtonDown do as shown in the code snippet ..


void CKeyboardcaptureDlg::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
char lschar;
lschar = char(nChar); //Get the Key Up character
CClientDC dc(this); //Get the device context for this dialog

CRect rc;
GetWindowRect(&rc);
ScreenToClient(&rc);
if(lschar == 'R')
{
dc.FillSolidRect(rc,RGB(200,4,56));
}
if(lschar == 'T')
{
//CString strText = "Hello world";
//dc.DrawText(strText ,rc,DT_MODIFYSTRING);
dc.FillSolidRect(rc,RGB(0,4,244));
}
CDialog::OnKeyUp(nChar, nRepCnt, nFlags);
}

To generate random colors everytime. Use Math.random()*255

Give the below code in mousePressed()


int r=(int)(Math.random()*255);
int g=(int)(Math.random()*255);
int b=(int)(Math.random()*255);
Color c=new Color(r,g,b);
gr.setColor(c);
gr.fillRect(50,50,100,100);

Let me know, if you still have problem.



-pkalp