2.2.2.4.2 High Contrast System Information Structure (TS_HIGHCONTRAST)
The TS_HIGHCONTRAST packet defines parameters for the high-contrast accessibility feature.
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ColorSchemeLength |
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ColorScheme (variable) |
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Flags (4 bytes): An unsigned 32-bit integer that is read by the server and used to set the High Contrast parameters.<14>
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Flag
Meaning
HCF_HIGHCONTRASTON
0x00000001
The High Contrast feature is enabled.
HCF_AVAILABLE
0x00000002
The High Contrast feature is available.
HCF_HOTKEYACTIVE
0x00000004
The user can turn the High Contrast feature on or off by using the hotkey (left SHIFT + left ALT + PRINT SCREEN).
HCF_CONFIRMHOTKEY
0x00000008
The user will be prompted with a confirmation dialog before the High Contrast feature is enabled using the hotkey.
HCF_HOTKEYSOUND
0x00000010
A sound is played whenever the High Contrast feature is turned on or off using the hotkey.
ColorSchemeLength (4 bytes): An unsigned 32-bit integer. The length, in bytes, of the ColorScheme field.
ColorScheme (variable): UNICODE_STRING. Variable length. The Windows-specific name of the High Contrast Color Scheme, specified as a null-terminated UNICODE_STRING.<15>