Help me!!!

[sattarzapata]

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......

[JosAH]

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

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

[sattarzapata]

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

[JosAH]

thank you but you'r method is wrong

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

[Fubarable]

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

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).