Accelerator property for PowerScript controls
Controls
Controls that accept user input, including list boxes, MultiLineEdit, SingleLineEdit,
ListView, EditMask, and TreeView
Description
Accelerator keys allow users to select an item (that is, change
focus) with a keystroke rather than the mouse. An underlined character
in the item’s name or label tells the user what key to
press. The user presses it in combination with the Alt key. If the
currently selected control is not an editable control (such as a
SingleLineEdit, MultiLineEdit, ListBox, or DropDownListBox), you
need only press the accelerator key.
Accelerator keys are different from shortcut keys, which are
defined key combinations that provide a quick way to accomplish
certain tasks.
|
PowerBuilder term |
Windows term |
|---|---|
|
accelerator key |
mnemonic access character |
|
shortcut key |
shortcut key or accelerator key |
Usage
In a painter
To select a character as an accelerator key
-
Type the character into the Accelerator
box on the General page of the control’s Properties view.For example, to set m as the accelerator, type
min
the box.
Accelerators for unlabeled controls
To show the user what accelerator key to use for an unlabeled
control or box, define StaticText to act as a label. Include an
ampersand (&) before the character you want underlined.
For example, in the StaticText control’s General page,
set the Text property to a value like Edit &Maintenance for a drop-down list that has
Datam as
an accelerator key. If you want an ampersand to display in the text,
type two ampersands, and if you want an ampersand to display and
serve as the accelerator key, type three ampersands.
In scripts
The Accelerator property is an integer consisting of the ASCII
value of the accelerator key. Both of the following lines set m
as the accelerator character for a MultiLineEdit control:
|
1 |
mle_1.Accelerator=77 |
|
1 |
mle_1.Accelerator = ASC("M") |