Help me!!!

i created a mdi application with this method :


protected void createFrame() {
MyInternalFrame frame = new MyInternalFrame();
multiWindow.add(frame);
frame.setVisible(true);
try {
frame.setSelected(true);
} catch (java.beans.PropertyVetoException e) {
}
}
class MyInternalFrame extends JInternalFrame {

static final int xPosition = 30, yPosition = 30;
public MyInternalFrame() {
super("Gpaint Shape #" + (++openFrameCount), false, // resizable
true, // closable
false, // maximizable
false);// iconifiable
setSize(300, 300);
// Set the window's location.
setLocation(xPosition * openFrameCount, yPosition
* openFrameCount);
}


and now i want draw a line on active internalframe but i can't plz help me......

Quote:

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Originally Posted by sattarzapata

and now i want draw a line on active internalframe but i can't plz help me......

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A JInternalPane has a content pane; you should add, say, a JPanel to this content pane and draw on the JPanel. Read the API documentation for the JInternal class, it explains it all.

kind regards,

Jos

thank you but you'r method is wrong
i found new method

MyJPanel panel = new MyJPanel(); // create new panel
frame.add( panel, BorderLayout.CENTER ); // add panel
....
.....
......
.......
public MyJPanel()
{ public void paintComponent( Graphics g )
{
super.paintComponent( g );
g.DrawLine(0,0,20,20);
}
}

**** you can't use internalframe.getcontentpane().add(); it's wrong

Quote:

---

Originally Posted by sattarzapata

thank you but you'r method is wrong

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O really? I didn't show any method at all and you obviously haven't read the API documentation for the JInternalFrame class.

kind regards,

Jos

Quote:

---

Originally Posted by sattarzapata

thank you but you'r method is wrong
....
**** you can't use internalframe.getcontentpane().add(); it's wrong

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Sorry, but everything JosAH told you was correct. If there's anything wrong, it's your interpretation of things (which we are still unclear on).