HM_QUERY Field - usselectionid

usselectionid (USHORT)

What is being requested.

This parameter should be specified only if the query is for HMQW_VIEWPORT and should otherwise be coded as NULL.

Specifies whether a res ID, ID number, or group number is being requested. The value can be any of the following constants:

HMQVP_NUMBER

A pointer to a USHORT that holds the res ID of the window.
HMQVP_NAME
A pointer to a null-terminated string that holds the ID of the window.
HMQVP_GROUP
The group number of the window.

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