hwndDTMore on the bold part later...
Handle to a DTP control.
flags
Value that specifies which range values are valid. This value can be a combination of the following:
GDTR_MIN
The first element in the SYSTEMTIME structure array is valid and will be used to set the minimum allowable system time.
GDTR_MAX
The second element in the SYSTEMTIME structure array is valid and will be used to set the maximum allowable system time.
lpSysTimeArray
Pointer to a two-element array of SYSTEMTIME structures. The first element of the SYSTEMTIME array contains the minimum allowable time. The second element of the SYSTEMTIME array contains the maximum allowable time. It is not necessary to fill an array element that is not specified in the flags parameter.