Show a popup menu and return the number of the item selected. The item number is the index of the StrArray selected minus LBound(StrArray). The value -1 is returned in no menu item is selected. 
PopupStyle 
 | Value 
 | Effect 
 | 
vbPopupLeftTopAlign 
 | 0  
 | Align menu left edge at XPos and top at YPos. (default)  
 | 
vbPopupUseLeftButton 
 | 1 
 | User can select menu choices with the left mouse button only.  
 | 
vbPopupUseRightButton  
 | 2 
 | User can select menu choices with the left or right mouse button 
 | 
vbPopupRightAlign  
 | 4 
 | Align menu with right edge at the XPos.  
 | 
vbPopupCenterAlign  
 | 8 
 | Align menu center at the XPos.  
 | 
vbPopupVCenterAlign  
 | 16 
 | Align menu center at the YPos.  
 | 
vbPopupBottomAlign  
 | 32 
 | Align menu bottom at the YPos. 
 |