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  • Overview
  • Retrieving and modifying the caption of the Button control
  • Retrieving the caption
  • Modifying the caption
  • Finding out and modifying the status of an On/Off button
  • Changing the target of a Button control
  • Modifying the image displayed in the Button control
  • Properties specific to the management of images in a Button control
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Stored procedures
Handling a Button control by programming
Overview
WINDEV, WINDEV Mobile and WEBDEV allow you to handle a Button control by programming. To do so, use the variable of the Button control in the code.
The variable of the Button control:
  • corresponds to the name of the Button control.
  • is initialized with the caption of the Button control.
Retrieving and modifying the caption of the Button control

Retrieving the caption

To retrieve the caption of the Button control, use the following syntax:
  • direct syntax:
    <Caption> = <Name of Button control>
  • using ..Caption:
    <Caption> = <Name of Button control>..Caption
<Caption> is Character String variable.

Modifying the caption

To modify the caption of the Button control, use the following syntax:
<Name of Button control> = <Caption>
<Caption> is Character String variable.
Finding out and modifying the status of an On/Off button
AndroidWindows MobileUniversal Windows 10 App ..Pushed is used to find out the status of the Button control:
<Status> = <Name of Button control>..Pushed
<Status> is a Boolean variable:
  • True if the button is pressed,
  • False if the button is released.
Changing the target of a Button control
Modifying the image displayed in the Button control
AndroidiPhone/iPadWindows MobileUniversal Windows 10 App To modify the image displayed in the Button control, use ..Image:
<Name of Button control>..Image = <Image path>
<Image Path> is a Character String variable.
The following image formats are supported in Windows:
  • Bitmap (*.BMP)
  • Graphics Interchange Format (*.gif)
  • Joint Picture Experts Group (*.jpg ; *.jpeg)
  • Kodak Photo CD (*.pcd)
  • PaintBrush (*.pcx)
  • Adobe Photoshop Format (*.psd)
  • TrueVision TARGA (*.tga)
  • Tagged Image File Format (*.tif ; *.tiff)
    Note: the "tiled tiff" option of tiff 6.0 standard is not supported. In this case, we advise you to save the image in tiff 5.0 standard.
  • Portable Network Graphics (*.png)
  • Windows MetaFiles (*.emf ; *.wmf)
  • Icons (*.ico ; *.icw)
    Versions 22 and later
    Notes:
    • HQ display (High Quality) available.
    • Management of sheets in transparent BMP format (32 bits).
    New in version 22
    Notes:
    • HQ display (High Quality) available.
    • Management of sheets in transparent BMP format (32 bits).
    Notes:
    • HQ display (High Quality) available.
    • Management of sheets in transparent BMP format (32 bits).
  • Cursors (*.cur)
  • Portable Document Format (*.pdf)
  • Versions 15 and later
    Scalable Vector Graphics (*.svg)
    New in version 15
    Scalable Vector Graphics (*.svg)
    Scalable Vector Graphics (*.svg)
  • Versions 22 and later
    WINDEV images (generated by the image editor, *.WDPIC).
    New in version 22
    WINDEV images (generated by the image editor, *.WDPIC).
    WINDEV images (generated by the image editor, *.WDPIC).
Note: To manage the pdf and svg formats, GDIPLUS.DLL must be installed for the computers running Windows 2000 and earlier. For the later versions, this DLL is supplied with Windows. See GDI+ framework for more details.
Windows Mobile The recognized image formats are: BMP, ICO, PNG, JPEG or GIF
Note: To manage the images in TIFF, GIF and JPEG format, Wxxximg.dll must be installed with the other DLLs of WINDEV.
Properties specific to the management of images in a Button control
The following properties are used to manage the images used in a Button control by programming.
PushedAllows you to find out and modify the status of an on/off Button control (pressed or not).
ImageAllows you to find out and modify the image of a Button control.
ImageStateAllows you to find out and modify the number of drawings found in the image associated with a Button control.
BackgroundImageAllows you to find out and modify the image associated with the border of a Button control.
BackgroundImageStateAllows you to find out and modify the number of drawings found in the image associated with the border of a Button control.
ValueAllows you to find out and modify the caption of a Button control.

To find out the entire list of WLanguage properties that can be used with a Button control, see Properties associated with the Button control.
Minimum version required
  • Version 9
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