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SftButton/DLL 3.0 - Button Control

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SFTBUTTON_HIGHCONTRAST Constants

Values for the nHighContrastMode field on SFTBUTTON_CONTROL and for SetHighContrastMode / GetHighContrastMode.

SFTBUTTON_HIGHCONTRAST_AUTO (2)Follow the Windows High Contrast accessibility setting. The control re-renders when the setting flips and sends SFTBUTTONN_HIGHCONTRAST_CHANGED to its parent. Default.
SFTBUTTON_HIGHCONTRAST_ON (1)Always render using the system palette regardless of the Windows setting.
SFTBUTTON_HIGHCONTRAST_OFF (0)Ignore the Windows High Contrast setting. Not recommended in shipping applications.

When high contrast is active, caller-supplied color overrides are ignored and the system palette wins. Themes also fall back to the system "Button" / "Toolbar" / "Combobox" classes so the user's HC theme renders unchanged.

See Also SetHighContrastMode | GetHighContrastMode | IsHighContrastActive | High Contrast | SFTBUTTON_DARKMODE

Last Updated 04/26/2026 - (email)
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