LM SETITEMHANDLE: Difference between revisions
Created page with "{{DISPLAYTITLE:LM_SETITEMHANDLE}} This message sets the handle of the specified list box item. ==Syntax== <pre> param1 SHORT sItemIndex; →Item index.: param2 ULONG ulItemHandle; →Item handle.: </pre> ==Parameters== ;sItemIndex (SHORT) - input: Item index. ;ulItemHandle (ULONG) - input: Item handle. ==Returns== ;rc (BOOL) - return: Success indicator. ::TRUE: Successful completion. ::FALSE: Error occurred. ==Remarks== The meaning of the item hand..." |
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Latest revision as of 01:20, 28 April 2025
This message sets the handle of the specified list box item.
Syntax
param1 SHORT sItemIndex; /* Item index. */ param2 ULONG ulItemHandle; /* Item handle. */
Parameters
Returns
- rc (BOOL) - return
- Success indicator.
- TRUE: Successful completion.
- FALSE: Error occurred.
Remarks
The meaning of the item handle is defined by the application. It may, for example, be a pointer to an application defined data structure.
Item handles are initialized to NULLHANDLE when an item is created. The list box control window procedure responds to this message by setting the handle of the item whose index is specified by sItemIndex to the value specified by ulItemHandle.
Default Processing
The default window procedure does not expect to receive this message and therefore takes no action on it, other than to set rc to the default value of FALSE.