PtUnrealizeWidget

Arguments

Returns

If successful the unrealized widget is returned, otherwise nil.

Description

This function makes a widget disappear. Actions associated with the widget are no longer available to the user. This function does not destroy the widget, it only hides it.

Example

This example, ex_PtUnrealizeWidget.g, is included in the product distribution.

#!/usr/cogent/bin/phgamma

/*
This example creates a small window with a button in it.  The every()
and at() functions are used to create timers to realize and unrealize
the button every 2 seconds, and change the label correspondingly.
*/

require_lisp("PhotonWidgets");
PtInit(nil);
win = new(PtWindow);
win.SetDim(220, 150);

b = new(PtButton);
b.text_string = "The button is visible";
b.SetPos(40, 60);

label1 = new(PtLabel);
label1.SetPos(20,15);
label1.text_string = string("The button will realize and\n",
			    "unrealize every 2 seconds.");

label2 = new(PtLabel);
label2.SetPos(70,100);
label2.text_string = "Realized";

PtExtentWidget(win);
PtRealizeWidget(win);

function realize_wgt(wgt, label, secs)
{
  PtRealizeWidget(wgt);
  label.text_string = "Realized";
  after(secs, `unrealize_wgt(@wgt, @label));
}

function unrealize_wgt(wgt, label)
{
  PtUnrealizeWidget(wgt);
  label.text_string = "Unrealized";
}

after(2, `unrealize_wgt(b, label2));
every(4,#realize_wgt(b, label2, 2));

PtMainLoop();

See Also

PtRealizeWidget, PtDestroyWidget

and in Photon documentation: PtUnrealizeWidget.