An application sends a CB_SETEDITSEL message to select characters in the edit control of a combo box.
CB_SETEDITSEL
wParam = 0; // not used; must be zero
lParam = MAKELPARAM((ichStart), (ichEnd); // start and end position
Parameters
ichStart
Value of the low-order word of lParam; this specifies the starting position. If this parameter is set to -1, the selection, if any, is removed.
ichEnd
Value of the high-order word of lParam; this specifies the ending position. If this parameter is set to -1, all text from the starting position to the last character in the edit control is selected.
Return Values
If the message succeeds, the return value is TRUE. If the message is sent to a combo box with the CBS_DROPDOWNLIST style, it is CB_ERR.
Remarks
The positions are zero-based. The first character of the edit control is in the zero position. The first character after the last selected character is in the ending position. For example, to select the first four characters of the edit control, use a starting position of 0 and an ending position of 4.
See Also