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Calculates the approximate width and height required to display a given number of items. You can use this macro or send the LVM_APPROXIMATEVIEWRECT message explicitly.
DWORD ListView_ApproximateViewRect(
HWND hwnd,
int iWidth,
int iHeight,
int iCount
);
hwnd
Type: HWND
A handle to the list-view control.
iWidth
Type: int
The proposed x-dimension of the control, in pixels. This parameter can be -1 to allow the message to use the current width value.
iHeight
Type: int
The proposed y-dimension of the control, in pixels. This parameter can be -1 to allow the message to use the current height value.
iCount
Type: int
The number of items to be displayed in the control. If this parameter is -1, the message uses the total number of items in the control.
Type: DWORD
Returns a DWORD value that holds the approximate width (in the LOWORD) and height (in the HIWORD) needed to display the items, in pixels.
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | commctrl.h |