FNTM UPDATEPREVIEW: Difference between revisions
Created page with "This message notifies subclassing applications before the preview window is updated. This occurs when the font selection is modified. ==Syntax== <PRE> param1 HWND hwndPreview; →Window handle.: param2 ULONG ulReserved; →Reserved value, should be 0.: </PRE> ==Parameters== ;hwndPreview (HWND) - Input : Window handle the preview image is drawn into. This is a static text field. ;ulReserved (ULONG) - Input : Reserved value, should be 0. ==Returns== ;ulReser..." |
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Latest revision as of 02:05, 21 April 2025
This message notifies subclassing applications before the preview window is updated. This occurs when the font selection is modified.
Syntax
param1 HWND hwndPreview; /* Window handle. */ param2 ULONG ulReserved; /* Reserved value, should be 0. */
Parameters
- hwndPreview (HWND) - Input
- Window handle the preview image is drawn into. This is a static text field.
- ulReserved (ULONG) - Input
- Reserved value, should be 0.
Returns
- ulReserved (ULONG) - returns
- Reserved value, should be 0.
Remarks
This message notifies an application that the dialog is about to update the preview area.
Default Processing
The WinDefDlgProc function does not expect to receive this message and takes no action on it other than to return 0.