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LVM_APPROXIMATEVIEWRECT

Windows CE 3.0

This message calculates the approximate width and height required to display a specified number of items.

LVM_APPROXIMATEVIEWRECT wParam = (WPARAM)(INT) iCount;
lParam = (LPARAM) MAKELPARAM(cx, cy);

Parameters

iCount: Number of items to be displayed in the control. If this parameter is set to –1, the message uses the total number of items in the control.
cx and cy: Specify the proposed dimensions of the control, in pixels. Either parameter can beset to –1 to allow the message to use the current width or height value.

Return Values

Returns a DWORD value that holds the approximate width and height needed to display the items, in pixels.

Remarks

Setting the size of the list view control based on the dimensions provided by this message can optimize redraw and reduce flicker.

Requirements

Runs on	Versions	Defined in	Include	Link to
Windows CE OS	2.0 and later	Commctrl.h

Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

ListView_ApproximateViewRect

Last updated on Tuesday, July 13, 2004

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