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WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WindowsLinuxPHPWEBDEV - Browser code
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Stored procedures
Reads a persistent value. The persistent value was saved by SaveParameter:
  • in the registry (or equivalent file on the runtime platform). For example:
    • AndroidAndroid Widget In Android, the persistent values are saved in the Shared Preferences of the application.
    • iPhone/iPadIOS WidgetMac Catalyst In iOS, the persistent values are stored in the parameters of the application ("NSUserDefault").
    • WEBDEV - Server code In a WEBDEV site, persistent values are stored in a browser cookie.
    • WINDEVLinux In a Linux application, parameters are saved in the $HOME/.local/share folder.
  • Reports and QueriesWindowsUniversal Windows 10 AppAndroidAndroid Widget iPhone/iPadIOS WidgetMac CatalystJavaUser code (UMC) in the file specified by InitParameter.
// Save
SaveParameter("LOGIN", EDT_Edit1)
// Restore
EDT_Edit1 = LoadParameter("LOGIN", "")
<Result> = LoadParameter(<Parameter name> [, <Default value>])
<Result>: Character string or integer
  • Value of the search parameter.
  • If the search parameter is not found, corresponds to <Default value> or to an empty string ("") if no default value was specified.
<Parameter name>: Character string
Name of the parameter to be found. This parameter must not correspond to an empty string.
Java If the selected initialization mode is the registry, LoadParameter is case and accent-insensitive (Parameter and parameter are equivalent).
<Default value>: Optional character string or optional integer
Default value of the parameter. This value will be returned if the value of the parameter is not found.
Related Examples:
WD Persistence Training (WINDEV): WD Persistence
[ + ] This example presents the use of InitParameter, LoadParameter and SaveParameter.
These functions are used to configure the backup of controls, variables and other parameters.
This example is divided into three parts:
- The configuration
- The manual management of variables (SaveParameter and LoadParameter)
- The optimization
1°) Configuration

The configuration window enables you to modify the location of the backup of parameters (registry, INI file, XML file) as well as its path (registry key or file path).
2°) Manual management of the variables
The manual management enables you to save the content of the variables via SaveParameter and to restore them via LoadParameter. Each parameter is identified by a name. These values are saved at the location defined in the configuration window.
3°) The optimization
This window explains how to optimize your code to avoid the slowness caused when the saved values are restored. Indeed, when restoring the value of a control, its modification code is run. If you have long processes (queries with parameters for instance), this window shows you how to speed up the loading of the window.
WM Password Cross-platform examples (WINDEV Mobile): WM Password
[ + ] Web sites, bank accounts, ... passwords are everywhere in out life. With WM Password, no need to store all the passwords of your different accounts. The application stores all your passwords in a secure way. WM Password can also generate secure passwords for you.
Business / UI classification: Neutral code
Component: wd300std.dll
Minimum version required
  • Version 9
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Last update: 06/23/2023

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