EM QUERYCHANGED: Difference between revisions
Created page with "This message enquires if the text of the entry field control has been changed since the last enquiry. ==Syntax== <pre> param1 ULONG ulReserved; →Reserved value, should be 0.: param2 ULONG ulReserved; →Reserved value, should be 0.: </pre> ==Parameters== ;ulReserved (ULONG) - input: Reserved value, should be 0. ;ulReserved (ULONG) - input: Reserved value, should be 0. ==Returns== ;rc (BOOL) - return: Changed indicator. ::TRUE: The text in the entr..." |
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The entry field control window procedure responds to this message by setting | The entry field control window procedure responds to this message by setting | ||
'''rc''' to indicate whether the text of the entry field has been changed since the last | '''rc''' to indicate whether the text of the entry field has been changed since the last | ||
time either this message or a [[WM_QUERYWINDOWPARAMS (in Entry Fields) | time either this message or a [[WM_QUERYWINDOWPARAMS]] (in Entry Fields) message has | ||
been received. | been received. | ||
Latest revision as of 01:54, 28 April 2025
This message enquires if the text of the entry field control has been changed since the last enquiry.
Syntax
param1 ULONG ulReserved; /* Reserved value, should be 0. */ param2 ULONG ulReserved; /* Reserved value, should be 0. */
Parameters
- ulReserved (ULONG) - input
- Reserved value, should be 0.
- ulReserved (ULONG) - input
- Reserved value, should be 0.
Returns
- rc (BOOL) - return
- Changed indicator.
- TRUE: The text in the entry field control has been changed since the last time it received this message or a WM_QUERYWINDOWPARAMS message.
- FALSE: All other situations.
Remarks
The entry field control window procedure responds to this message by setting rc to indicate whether the text of the entry field has been changed since the last time either this message or a WM_QUERYWINDOWPARAMS (in Entry Fields) message has been received.
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.