the date time picker control

[C++ Programming]

hello all:
I have got a trouble in date time picker control
when i use the date time picker control to adjust the control time ,if i first select the hour field then i can only change the hour field ,even i set the cursor in the minutes field when i click the spin ,only the hour field changed,does this the control bug,how can i put the cursor in which where i chang which field


thanks !

a beginner