An application sends the WM_SETTINGCHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI.

WM_WININICHANGE

0x1A

An application sends the WM_WININICHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI. Note The WM_WININICHANGE message is provided only for compatibility with earlier versions of the system. Applications should use the WM_SETTINGCHANGE message.

user32

2: SystemParametersInfo

Summary

The SystemParametersInfo API

Private Declare Function SystemParametersInfo Lib "user32" Alias "SystemParametersInfoA" (ByVal uAction As Integer, _

Return type of some native methods like SystemParametersInfo is bool. They should be marked by [System.Runtime.InteropServices.MarshalAsAttribute].

The [System.Windows.Forms.SystemInformation] managed class, which uses SystemParametersInfo internally, has many (but not all) static properties containing user information, system setup, and preferences.

Structures

3: ANIMATIONINFO

Summary

ANIMATIONINFO - Used with SystemParametersInfo for SPI_GETANIMATION or SPI_SETANIMATION

/// Used with SystemParametersInfo when SPI_GETANIMATION or SPI_SETANIMATION action is specified.

4: MINIMIZEDMETRICS

Summary

The MinimizedMetrics structure is used with SystemParametersInfo to set the properties of minimized windows when opening or closing a shell application (e.g. Windows Explorer).

Enums

5: SPI

Summary

Used in SystemParametersInfo as fWinIni

6: SPIF

Summary

Used in SystemParametersInfo as fWinIni

7: SystemMetric

''' Width of the client area for a full-screen window on the primary display monitor in pixels. To get the coordinates of the portion of the screen not obscured by the system taskbar or by application desktop toolbars call the SystemParametersInfo function with the SPI_GETWORKAREA value.

''' Height of the client area for a full-screen window on the primary display monitor in pixels. To get the coordinates of the portion of the screen not obscured by the system taskbar or by application desktop toolbars call the SystemParametersInfo function with the SPI_GETWORKAREA value.

8: WindowsMessages

/// An application sends the WM_WININICHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI.

'''An application sends the WM_SETTINGCHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI.

'''An application sends the WM_WININICHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI. Note The WM_WININICHANGE message is provided only for compatibility with earlier versions of the system. Applications should use the WM_SETTINGCHANGE message.

''' the SystemParametersInfo function changes a system-wide setting or when policy settings have changed.

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