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Hit Test Options

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This section lists the option values that are used with the dwOptions parameter of the HitTestThemeBackground function. For a list of the values returned when you specify one of these options, see Hit Test Return Values.

Option Values

The following table lists the hit test options.

Option Value Description
HTTB_BACKGROUNDSEG 0x00000000 Theme background segment hit test option.
HTTB_FIXEDBORDER 0x00000002 Fixed border hit test option.
HTTB_CAPTION 0x00000004 Caption hit test option.
HTTB_RESIZINGBORDER (HTTB_RESIZINGBORDER_LEFT | HTTB_RESIZINGBORDER_TOP | HTTB_RESIZINGBORDER_RIGHT | HTTB_RESIZINGBORDER_BOTTOM) Resizing border hit test options.
HTTB_RESIZINGBORDER_LEFT 0x00000010 Resizing left border hit test option.
HTTB_RESIZINGBORDER_TOP 0x00000020 Resizing top border hit test option.
HTTB_RESIZINGBORDER_RIGHT 0x00000040 Resizing right border hit test option.
HTTB_RESIZINGBORDER_BOTTOM 0x00000080 Resizing bottom border hit test option.
HTTB_SIZINGTEMPLATE 0x00000100 Resizing border is specified as a template, not just window edges. This option is mutually exclusive with HTTB_SYSTEMSIZINGMARGINS; HTTB_SIZINGTEMPLATE takes precedence.
HTTB_SYSTEMSIZINGMARGINS 0x00000200 Uses the system resizing border width rather than visual style content margins. This option is mutually exclusive with HTTB_SIZINGTEMPLATE; HTTB_SIZINGTEMPLATE takes precedence.