SPBM SPINDOWN: Difference between revisions
Created page with "{{DISPLAYTITLE:SPBM_SPINDOWN}} This message causes the component to show the previous value (spin backward). ==Syntax== <pre> param1 ULONG ulItem; →Number of values to spin down.: param2 ULONG ulReserved; →Reserved value, should be 0.: </pre> ==Parameters== ;ulItem (ULONG) - input: Number of values to spin down. ;ulReserved (ULONG) - input: Reserved value, should be 0. ==Returns== ;rc (BOOL) - return: Success indicator. ::TRUE: Successful comp..." |
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Latest revision as of 04:28, 28 April 2025
This message causes the component to show the previous value (spin backward).
Syntax
param1 ULONG ulItem; /* Number of values to spin down. */ param2 ULONG ulReserved; /* Reserved value, should be 0. */
Parameters
- ulItem (ULONG) - input
- Number of values to spin down.
- ulReserved (ULONG) - input
- Reserved value, should be 0.
Returns
- rc (BOOL) - return
- Success indicator.
- TRUE: Successful completion.
- FALSE: Error occurred.
Remarks
The application sends this message to the component when it wants the previous value shown (spin backward). When there is no data to spin, FALSE is returned.
Default Processing
The default window procedure does not expect to receive this message and takes no action other than to return FALSE.