An application sends a ZGM_COMPARETEXT2STRING message to compare the display text of a cell specified by the cell index in wParam and a string specified in lParam.
ZGM_COMPARETEXT2STRING
wParam = (WPARAM)(int) iCellIndex; //ZeeGrid cell index
lParam = (LPARAM) lpszString; //pointer to string
If the text of the cell pointed to by iCellIndex is equal to the string lpString, the return value is zero. If the text of the cell pointed to by iCellIndex is less than the string lpString, the return value is less than zero. If the text of the cell pointed to by iCellIndex is greater than the string lpString, the return value is greater than zero.