Contains information about control notification messages
Global Const $tagNMHEADER = $tagNMHDR & ";int Item;int Button;ptr pItem"
| $tagNMHDR | Contains information about a notification message |
| Item | 0-based index of the control to which this structure refers |
| Button | Index of the mouse button used to generate the notification message. This member can be one of the following values: 0 - Left button 1 - Right button 2 - Middle button |
| pItem | Optional pointer to a tagHDITEM structure containing information about the item specified by Item. The mask member of the tagHDITEM structure indicates which of its members are valid. |