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Sent to the owner window of a control or menu item when the control or menu is created.
DFM_WM_MEASUREITEM
wParam = (WPARAM);
lParam = (LPARAM)(LPMEASUREITEMSTRUCT) lpMeasureItem;
Parameters
-
wParam [in]
-
The value of the CtlID member of the MEASUREITEMSTRUCT structure pointed to by the lpMeasureItem parameter. This value identifies the control that sent the DFM_WM_MEASUREITEM message.
-
lpMeasureItem [out]
-
A pointer to a MEASUREITEMSTRUCT structure that contains the dimensions of the owner-drawn control or menu item.
Remarks
When the owner window receives the DFM_WM_MEASUREITEM message, the owner fills in the MEASUREITEMSTRUCT structure pointed to by the lpMeasureItem parameter of the message and returns; this informs the system of the dimensions of the control.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|