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Variant Parameter Type Constants

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This topic lists new constants that indicate variant parameter types designed for use with the OLE control classes of the Microsoft Foundation Class Library.

The following is a list of class constants:

Variant Data Constants

  • VTS_COLOR   A 32-bit integer used to represent a RGB color value.

  • VTS_FONT   A pointer to the IFontDisp interface of an OLE font object.

  • VTS_HANDLE   A Windows handle value.

  • VTS_PICTURE   A pointer to the IPictureDisp interface of an OLE picture object.

  • VTS_OPTEXCLUSIVE   A 16-bit value used for a control that is intended to be used in a group of controls, such as radio buttons. This type tells the container that if one control in a group has a TRUE value, all others must be FALSE.

  • VTS_TRISTATE   A 16-bit signed integer used for properties that can have one of three possible values (selected, cleared, unavailable), for example, a check box.

  • VTS_XPOS_HIMETRIC   A 32-bit unsigned integer used to represent a position along the x-axis in HIMETRIC units.

  • VTS_YPOS_HIMETRIC   A 32-bit unsigned integer used to represent a position along the y-axis in HIMETRIC units.

  • VTS_XPOS_PIXELS   A 32-bit unsigned integer used to represent a position along the x-axis in pixels.

  • VTS_YPOS_PIXELS   A 32-bit unsigned integer used to represent a position along the y-axis in pixels.

  • VTS_XSIZE_PIXELS   A 32-bit unsigned integer used to represent the width of a screen object in pixels.

  • VTS_YSIZE_PIXELS   A 32-bit unsigned integer used to represent the height of a screen object in pixels.

  • VTS_XSIZE_HIMETRIC   A 32-bit unsigned integer used to represent the width of a screen object in HIMETRIC units.

  • VTS_YSIZE_HIMETRIC   A 32-bit unsigned integer used to represent the height of a screen object in HIMETRIC units.

    Note

    Additional variant constants have been defined for all variant types, with the exception of VTS_FONT and VTS_PICTURE, that provide a pointer to the variant data constant. These constants are named using the VTS_Pconstantname convention. For example, VTS_PCOLOR is a pointer to a VTS_COLOR constant.

Requirements

Header: afxdisp.h

See Also

Concepts

MFC Macros and Globals