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Persistence of OLE Controls

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One capability of OLE controls is property persistence (or serialization), which allows the OLE control to read or write property values to and from a file or stream. A container application can use serialization to store a control's property values even after the application has destroyed the control. The property values of the OLE control can then be read from the file or stream when a new instance of the control is created at a later time.

Persistence of OLE Controls

PX_Blob

Exchanges a control property that stores binary large object (BLOB) data.

PX_Bool

Exchanges a control property of type BOOL.

PX_Color

Exchanges a color property of a control.

PX_Currency

Exchanges a control property of type CY.

PX_DataPath

Exchanges a control property of type CDataPathProperty.

PX_Double

Exchanges a control property of type double.

PX_Font

Exchanges a font property of a control.

PX_Float

Exchanges a control property of type float.

PX_IUnknown

Exchanges a control property of undefined type.

PX_Long

Exchanges a control property of type long.

PX_Picture

Exchanges a picture property of a control.

PX_Short

Exchanges a control property of type short.

PX_ULong

Exchanges a control property of type ULONG.

PX_UShort

Exchanges a control property of type USHORT.

PX_String

Exchanges a character string control property.

PX_VBXFontConvert

Exchanges a VBX control's font-related properties into an OLE control font property.

In addition, the AfxOleTypeMatchGuid global function is provided to test for a match between a TYPEDESC and a given GUID.

See Also

Concepts

MFC Macros and Globals