TOGGLEKEYS
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4/8/2010
This structure contains information about the toggle keys accessibility option. When the toggle keys option is on, the device emits a high-pitched sound whenever the user turns on the CAPS LOCK, NUM LOCK, or SCROLL LOCK key and emits a low-pitched sound whenever the user turns off one of those keys.
Syntax
typedef struct tagTOGGLEKEYS{
UINT cbSize;
DWORD dwFlags;
} TOGGLEKEYS, *LPTOGGLEKEYS;
Members
- cbSize
Unsigned integer that specifies the size, in bytes, of this structure.
dwFlags
DWORD that contains a set of bit flags that specify properties for the toggle keys option. The following table shows the possible values.Value Description TKF_AVAILABLE
The toggle keys option is available for use.
TKF_HOTKEYACTIVE
The user can turn the toggle keys option on and off by holding down the NUM LOCK key for 8 seconds.
TKF_HOTKEYSOUND
The system plays a siren sound when the user turns the toggle keys option on or off by using the hot key.
TKF_TOGGLEKEYSON
The toggle keys option is on.
Remarks
Use a TOGGLEKEYS structure when you call the SystemParametersInfo function with the wAction parameter set to SPI_GETTOGGLEKEYS or SPI_SETTOGGLEKEYS. When using SPI_GETTOGGLEKEYS, you must specify the cbSize member of the TOGGLEKEYS structure; the SystemParametersInfo function fills in the remaining members. Specify all structure members when using the SPI_SETTOGGLEKEYS value.
Requirements
| Header | winuser.h |
| Windows Embedded CE | Windows CE .NET 4.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |