IsAccelerator

Determines whether the keystroke maps to an accelerator in the given accelerator table.

BOOL IsAccelerator(

HACCEL hAccel,	//Handle to accelerator table
INT cAccelEntries,	//Number of entries in the accelerator table
LPMSG lpMsg,	//Points to the keystroke message to be translated
WORD * lpwCmd	//Where to return the corresponding command ID
);

Parameters

hAccel

Specifies the handle to the accelerator table.

cAccelEntries

Specifies the number of entries in the accelerator table.

lpMsg

Points to the keystroke message to be translated.

lpwCmd

Points to where to return the corresponding command ID if there is an accelerator for the keystroke. It may be NULL.

Return Values

TRUE

Indicates the message is for the object application.

FALSE

Indicates the message is not for the object and should be forwarded to the container.

Comments

While active in-place, the object always has first chance to translate the keystrokes into accelerators. If the keystroke corresponds to one of its accelerators, the object must not call the OleTranslateAccelerator function even if its call to the Windows TranslateAccelerator function fails. Failure to process keystrokes in this manner can lead to inconsistent behavior.

If the keystroke is not one of the object's accelerators, then the object must call OleTranslateAccelerator to let the container try its accelerator translation.

The object application can call IsAccelerator to determine if the accelerator message belongs to it. Some object applications do accelerator translation on their own and do not call TranslateAccelerator. Those applications will not call IsAccelerator, because they already have the information.

See Also

OleTranslateAccelerator

TranslateAccelerator in Win32

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