ns-winddi-devhtadjdata.md

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NS:winddi._DEVHTADJDATA	DEVHTADJDATA (winddi.h)	The DEVHTADJDATA structure is used as input to the HTUI_DeviceColorAdjustment function.	*PDEVHTADJDATA DEVHTADJDATA DEVHTADJDATA structure [Display Devices] PDEVHTADJDATA PDEVHTADJDATA structure pointer [Display Devices] display.devhtadjdata grstrcts_bd1a058d-3d43-48f3-a87e-7f6f5276ba51.xml winddi/DEVHTADJDATA winddi/PDEVHTADJDATA	display\devhtadjdata.htm	display	a90f2283-7bc3-48e4-bb1c-172d9776a284	12/05/2018	*PDEVHTADJDATA, DEVHTADJDATA, DEVHTADJDATA structure [Display Devices], PDEVHTADJDATA, PDEVHTADJDATA structure pointer [Display Devices], display.devhtadjdata, grstrcts_bd1a058d-3d43-48f3-a87e-7f6f5276ba51.xml, winddi/DEVHTADJDATA, winddi/PDEVHTADJDATA	winddi.h	Winddi.h	Windows															Windows	DEVHTADJDATA, *PDEVHTADJDATA		19H1	_DEVHTADJDATA winddi/_DEVHTADJDATA PDEVHTADJDATA winddi/PDEVHTADJDATA DEVHTADJDATA winddi/DEVHTADJDATA	c++	APIRef kbSyntax	HeaderDef	winddi.h	DEVHTADJDATA

DEVHTADJDATA structure

-description

The DEVHTADJDATA structure is used as input to the HTUI_DeviceColorAdjustment function.

-struct-fields

-field DeviceFlags

Is a set of flags, set by the caller, describing color mixing and color versus gray-scale output. Either, both, or neither of the following flags should be set, as appropriate:

Flag	Definition
DEVHTADJF_ADDITIVE_DEVICE	If set, the device uses additive color mixing. If not set, the device uses subtractive color mixing.
DEVHTADJF_COLOR_DEVICE	If set, the device produces color output. If not set, the device produces gray-scaled output.

-field DeviceXDPI

Is the caller-supplied horizontal resolution, in dots per inch, for the device.

-field DeviceYDPI

Is the caller-supplied vertical resolution, in dots per inch, for the device.

-field pDefHTInfo

Is a caller-supplied pointer to a DEVHTINFO structure containing the device's default halftoning properties.

-field pAdjHTInfo

Is a caller-supplied pointer to a DEVHTINFO structure containing the device's current halftoning properties. Before the HTUI_DeviceColorAdjustment function returns, it modifies this structure's contents, if the user has adjusted the halftoning properties. Can be NULL (see the following Remarks section).

-remarks

If pAdjHTInfo is NULL, or if pAdjHTInfo and pDefHTInfo point to the same buffer, the HTUI_DeviceColorAdjustment function displays the halftoning properties supplied by pDefHTInfo but does not allow the user to modify them.