BINDSPEED enumeration

Indicates approximately how long the caller will wait to bind to an object.

Syntax


typedef enum tagBINDSPEED { 
  BINDSPEED_INDEFINITE  = 1,
  BINDSPEED_MODERATE    = 2,
  BINDSPEED_IMMEDIATE   = 3
} BINDSPEED;

Constants

BINDSPEED_INDEFINITE

There is no time limit on the binding operation.

BINDSPEED_MODERATE

The binding operation must be completed in a moderate amount of time.

If this flag is specified, the implementation of IOleItemContainer::GetObject should return MK_E_EXCEEEDEDDEADLINE unless tone of the following is true:

  • The object is already in the running state.
  • The object is a pseudo-object (an object internal to the item container, such as a cell-range in a spreadsheet or a character-range in a word processor).
  • The object is supported by an in-process server (so it is always in the running state when it is loaded). In this case, GetObject should load the designated object, and, if the OleIsRunning function indicates that the object is running, return successfully.
BINDSPEED_IMMEDIATE

The caller will wait only a short time. In this case, the binding operation should return MK_E_EXCEEEDEDDEADLINE unless the object is already in the running state or is a pseudo-object.

Remarks

The system-supplied item moniker implementation is the primary caller of IOleItemContainer::GetObject. The BINDSPEED value that it specifies depends on the deadline specified by the caller of the moniker operation.

The deadline is stored in the dwTickCountDeadline field of the BIND_OPTS structure in the bind context passed to the moniker operation. This value is based on the return value of the GetTickCount function. If dwTickCountDeadline is zero, indicating no deadline, the item moniker implementation specifies BINDSPEED_INDEFINITE. (This is the default dwTickCountDeadline value for a bind context returned by the CreateBindCtx function.) If the difference between dwTickCountDeadline and the value returned by GetTickCount is greater than 2500, the item moniker implementation specifies BINDSPEED_MODERATE. If the difference is less than 2500, the item moniker implementation specifies BINDSPEED_IMMEDIATE.

Implementations of GetObject can use the BINDSPEED value as a shortcut approximation of the binding deadline, or they can use the IBindCtx instance parameter to determine the exact deadline.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Oleidl.h

See also

BIND_OPTS
IBindCtx
IOleItemContainer::GetObject

 

 

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