Note : The first this says "me" or "my". The second
this says "pointer". The result is
"my pointer".Retrieving a Pointer to a Control
There are several ways to get the <CONTROL> pointer to the control. The first way is to use the .CHILD() method and name the control. These examples refer to a button control, but other types of controls work the same way.
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dim ptr as P dim fld as P ptr = form.load("Customer Information") ptr.show() fld = ptr.child("BUTTON3") fld.BUTTON_METHOD(arguments) ' now do something with the pointer |
If you are writing code to respond to a button event, such as OnPush, you can use the this.this technique to retrieve the <CONTROL> pointer. The next example uses the <CONTROL> pointer to read the .TEXT property of the button.
Note : The first this says "me" or "my". The second
this says "pointer". The result is
"my pointer".
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dim ctrl as P ctrl = this.this ui_msg_box("Button4", "The caption of Button4 is " + ctrl.text) |
The result is: [Picture]
![[Picture]](http://support.alphasoftware.com/imagesV8/Button_4_Pointer_Demo.gif){kind=link}