MLM DELETE: Difference between revisions
Created page with "This message deletes text. ==Syntax== <pre> param1 IPT iptBegin; →Starting point of deletion.: param2 ULONG ulDel; →Number of bytes to delete.: </pre> ==Parameters== ;iptBegin (IPT) - input: Starting point of deletion. ;ulDel (ULONG) - input: Number of bytes to delete. ==Returns== ;ulSuccess (ULONG) - return: Number of bytes successfully deleted. ==Remarks=== This message takes an insertion point and a length, and deletes that number of characters fro..." |
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Latest revision as of 04:26, 25 April 2025
This message deletes text.
Syntax
param1 IPT iptBegin; /* Starting point of deletion. */ param2 ULONG ulDel; /* Number of bytes to delete. */
Parameters
- iptBegin (IPT) - input
- Starting point of deletion.
- ulDel (ULONG) - input
- Number of bytes to delete.
Returns
- ulSuccess (ULONG) - return
- Number of bytes successfully deleted.
Remarks=
This message takes an insertion point and a length, and deletes that number of characters from the text. If the insertion point is -1, the selection is used and the effect is identical to the MLM_CLEAR message.
This may cause an overflow, see MLN_OVERFLOW.
Default Processing
The default window procedure takes no action on this message, other than to set ulSuccess to 0.