CB_GETDROPPEDCONTROLRECT

3.1

CB_GETDROPPEDCONTROLRECT
wParam = 0;                             /* not used, must be zero    */
lParam = (LPARAM) (RECT FAR*) lprc;     /* address of RECT structure */

An application sends a CB_GETDROPPEDCONTROLRECT message to retrieve the screen coordinates of the visible (dropped-down) list box of a combo box.

Parameters

lprc

Value of lParam. Points to the RECT structure that is to receive the coordinates. The RECT structure has the following form:

typedef struct tagRECT {    /* rc */
   int left;
   int top;
   int right;
   int bottom;
} RECT;

Return Value

The return value is always CB_OKAY.

Example

This example retrieves the bounding rectangle of the list box of a combo box:

RECT rcl;

SendDlgItemMessage(hdlg, ID_MYCOMBOBOX,
    CB_GETDROPPEDCONTROLRECT, 0, (DWORD) ((LPRECT) &rcl));