bgiGetDatePickerMonth

Returns the month component (1-12) from a DatePicker control. Searches gizmoMap for gizmo ID using find(). If found, calls DateTime_GetSystemtime() to retrieve SYSTEMTIME structure. Returns st.wMonth field. Returns 0 if gizmo not found.

This function retrieves the month value from a DatePicker control. DateTime_GetSystemtime is a Windows Common Controls macro wrapping DTM_GETSYSTEMTIME message. SYSTEMTIME.wMonth field contains month (1=January, 2=February, ..., 12=December). Returns 0 for invalid gizmo ID. Use after user selects date or to query current picker value. Common pattern: call all three getters (Day, Month, Year) to retrieve complete date.