problem from owner draw CComboBox with different list items' height.

[yaoliwei2000]

Hello gurus,

I have an owner draw CComboBox with different list items' height. On some cases, the list box of combo box will hold some empty place at the bottom if you drop down the combo box.

For example, In MeasureItem(), if you set item1's height to 20, item2's height to 10, then some empty place will be at the bottom of the dropeed list box, though for some items height pairs, there will be no empty place.

My question is: is there any way to set the height of the list box of the combo box? so that I can remove the empty place at the bottom.

Attach file is the simple test project.
Any idea is welcome.

Regards
Yao Liwei