可以设置! LB_SETITEMHEIGHT An application sends an LB_SETITEMHEIGHT message to set the height, in pixels, of items in a list box. If the list box has the LBS_OWNERDRAWVARIABLE style, this message sets the height of the item specified by the index parameter. Otherwise, this message sets the height of all items in the list box. LB_SETITEMHEIGHT wParam = (WPARAM) index; // item index lParam = MAKELPARAM(cyItem, 0); // item height
Parameters index Value of wParam. Specifies the zero-based index of the item in the list box. Use this parameter only if the list box has the LBS_OWNERDRAWVARIABLE style; otherwise, set it to zero. Windows 95 and Windows 98: The wParam parameter is limited to 16-bit values. This means list boxes cannot contain more than 32,767 items. Although the number of items is restricted, the total size in bytes of the items in a list box is limited only by available memory. cyItem Value of lParam. Specifies the height, in pixels, of the item. Return Values If the index or height is invalid, the return value is LB_ERR. QuickInfo Windows NT: Requires version 3.1 or later. Windows: Requires Windows 95 or later. Windows CE: Requires version 1.0 or later. Header: Declared in winuser.h.
listbox可以通过改变字体大小,插入空行的办法来部分实现
LB_SETITEMHEIGHT
An application sends an LB_SETITEMHEIGHT message to set the height, in pixels, of items in a list box. If the list box has the LBS_OWNERDRAWVARIABLE style, this message sets the height of the item specified by the index parameter. Otherwise, this message sets the height of all items in the list box. LB_SETITEMHEIGHT
wParam = (WPARAM) index; // item index
lParam = MAKELPARAM(cyItem, 0); // item height
Parameters
index
Value of wParam. Specifies the zero-based index of the item in the list box. Use this parameter only if the list box has the LBS_OWNERDRAWVARIABLE style; otherwise, set it to zero.
Windows 95 and Windows 98: The wParam parameter is limited to 16-bit values. This means list boxes cannot contain more than 32,767 items. Although the number of items is restricted, the total size in bytes of the items in a list box is limited only by available memory. cyItem
Value of lParam. Specifies the height, in pixels, of the item.
Return Values
If the index or height is invalid, the return value is LB_ERR. QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.