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Common Features

Table 1. Events

Support Level

Feature Name

Description

Supported

Clicked

 

Supported

Constructor

 

Supported

Destructor

 

Supported

DoubleClicked

 

Supported

DragDrop

 

Supported

DragEnter

 

Supported

DragLeave

 

Supported

DragWithin

 

Supported

GetFocus

In PowerBuilder, when a control gets focus and then loses focus, a series of LoseFocus and GetFocus events are triggered. In the mobile application, the rule is simplified as following:

  1. For the control which has focus, when tapping on the window, the control will not lose focus.

  2. For the control which has focus, when Hide() is called, the event order of the control (called Control A) is as following:

    1. Control A lost the focus.

    2. The window lost the focus.

    3. The control whose TabOrder is in the first place gets the focus (If the TabOrder of all controls is 0, Control A still gets the focus, even if it is invisible.)

Unsupported

Help

 

Supported on Web Only

Key

This event is supported in the Appeon Web application, but unsupported in the mobile application.

Supported

LostFocus

 

Supported

LostFocus

 

Unsupported

Other

 

Supported

RButtonDown

In the mobile application, you will need to turn on the Right-click mode in the Assistive Touch Bar, so that RButtonDown event will be triggered, but with the following exceptions:

  1. For SingleLineEdit and MultiLineEdit controls, no RButtonDown event will be triggered.

  2. For TreeView, ListView, DropDownListBox, PictureDropDownListBox, and DataWindow, when they are in the editing state, no RButtonDown event will be triggered.


Table 2. Functions

Support Level

Feature Name

Description

Supported

ClassName

 

Supported

Clear

 

Supported

Copy

 

Supported

Cut

 

Supported

Drag

In the mobile application, you may utilize the Assistive Touch Bar to avoid conflicts between drag and scroll. Please see the section called “Event-handling model” in Mobile UI Design & Development Guide.

Avoid using Drag in the following situations, otherwise Drag will not take effect:

  1. In the control's LButtonDown event, avoid calling Drag(Begin) to drag another control.

  2. If Drag is triggered by Postevent, avoid triggering it before LButtonUp.

The general rule is to avoid triggering Drag to drag other controls before LButtonUp.

If no drag icon is specified, the default icon designed by PowerServer Mobile will be used. The drag icon can be in any image format that is supported by PowerServer Mobile, while in Windows, only ICO format is supported.

Unsupported

GetContextService

 

Supported

GetParent

 

Supported

Hide

 

Supported

Move

 

Supported

Paste

 

Supported

PointerX

 

Supported

PointerY

 

Supported

PostEvent

 

Unsupported

Print

Mobile platform difference:

For Android: Print is unsupported.

For iOS: Print is unsupported for all controls except for DataWindow control.

Supported

ReplaceText

 

Supported

Resize

 

Supported

SelectedLength

 

Supported

SelectedStart

 

Supported

SelectedText

If the second parameter is larger than the length of the remaining string, the number of the remaining string is returned, but in PowerBuilder, the second parameter is returned.

Supported

SelectText

If the second parameter is larger than the selected string length, the number of characters actually selected is returned, but in PowerBuilder, the second parameter is returned.

In Windows, Newline and Carriage Return display as two bytes (\r\n), but in iOS and Android, they display as one byte (\n). This causes difference in multi-line text, for example, for a MultiLineEdit that has contents like "<newline>test1", selecttext(3,4) selects "test" in Windows, while selects "est1" in iOS and Android.

Supported

SetFocus

 

Supported

SetPosition

 

Supported

SetRedraw

In PowerBuilder applications, SetRedraw() is mainly to optimize the client performance, which is often called in pairs in a function or an event. In the mobile application, SetRedraw() will be handled differently:

SetRedraw() should be used in pairs, and between SetRedraw(false) and SetRedraw(true) there should be no manual intervention such as clicking a button or popping up a MessageBox etc.

UI painting of the corresponding object is suspended when SetRedraw(false) is executed, and will start painting again according to the latest properties after SetRedraw(true) is executed.

Other than the above difference, SetRedraw() can be used in the same way and achieve the same result as in PowerBuilder.

Supported

Show

 

Supported

TriggerEvent

 

Supported

TypeOf

 

Table 3. Properties

Support Level

Feature Name

Description

Unsupported

Accelerator

 

Unsupported

AccessibleDescription

 

Unsupported

AccessibleName

 

Unsupported

AccessibleRole

 

Supported

BackColor

The RGB color will be displayed the same in iOS and Android as in Windows, but the system color such as ButtonFace may be mapped to a different color in iOS and Android, in order to conform to the mobile UI style.

Transparent value is unsupported.

Supported

Border

 

Supported

BorderStyle

When BorderStyle is set to Box, the border displays the same in iOS and Android as in PowerBuilder; but when set to the other styles, the border will always display as rounded rectangle.

Supported

BringToTop

 

Unsupported

ClassDefinition

 

Supported

DragAuto

 

Supported

DragIcon

Other than the situations below, DragIcon is consistent with PowerBuilder.

If DragIcon is not specified, use the default DragIcon and add the glow effect.

If use the default icon in PowerBuilder as DragIcon, add the glow effect to DragIcon.

Supported

Enabled

 

Supported

FaceName

If the specified font also exists in iOS or Android, then the same font will be used, otherwise the font Helvetica will be used.

Supported

FontCharSet

Only ANSI character set is supported, and the display effect of other character sets may not be displayed as expected.

Supported

FontFamily

It depends on the FaceName. If the value is not consistent with the font corresponding to FaceName, it takes no effect.

Supported

FontPitch

It depends on the FaceName. If the value is not consistent with the FontPitch value of the font corresponding to FaceName, it takes no effect.

Supported

Height

 

Supported

HScrollBar

The scrollbar will be automatically displayed as the mobile-style scrollbar, rather than the Windows-style scrollbar.

Supported

Italic

The Italic property is font-dependent in iOS or Android, and not all of the fonts support italic.

Supported on Web Only

Pointer

 

Supported

RightToLeft

 

Supported

TabOrder

Switching focus via the Tab key is not supported. When a window opens, the focus will be automatically placed onto the control with the smallest TabOrder value (TabOrder>0).

Supported

Tag

 

Supported

Text

For "&" character in iOS and Android:

  1. Shortcut key operation is unsupported for all the controls in iOS and Android.

  2. If there are other characters following the "&" character, the "&" character will not display; and the following characters will not have underlines.

  3. The display rule for consecutive "&" characters:

    1. The only one "&" character will not display;

    2. An odd number (n) of consecutive "&" characters will display this number of "&" characters: (n-1)/2;

    3. An even number (n) of consecutive "&" characters will display this number of "&" characters: n/2.

Additionally, the following two situations also use the above rules:

  1. Controls in the DataWindow with Text property, such as Button, Text, GroupBox.

  2. The "&" character used in the string in the Expression property of the Computed Filed object.

Supported

TextColor

Refer to the BackColor property.

Supported

TextSize

 

Supported

Underline

The Underline property is font-dependent in iOS and Android, and not all of the fonts support underline.

Supported

Visible

 

Supported

VScrollBar

The scrollbar will be automatically displayed as the mobile-style scrollbar, rather than the Windows-style scrollbar.

Supported

Weight

The Weight property is font-dependent in iOS and Android, and not all of the fonts support bold.

Supported

Width

 

Supported

X

 

Supported

Y

 

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