BOOL TrackPopupMenu(hMenu,wFlags,x,y,nReserved,hWnd,lpReserved)
This function displays a “floating” pop-up menu at the specified location and tracks the selection of items on the pop-up menu. A floating pop-up menu can appear anywhere on the screen. The hMenu parameter specifies the handle of the menu to be displayed; the application obtains this handle by calling CreatePopupMenu to create a new pop-up menu or by calling GetSubMenu to retrieve the handle of a pop-up menu associated with an existing menu item.
Windows sends messages generated by the menu to the window identified by the hWnd parameter.
| Parameter | Type/Description |
| hMenu | HMENU Identifies the pop-up menu to be displayed. | |
| wFlags | WORD Specifies the mouse button that selects items on the menu. If wFlags is set to TPM_RIGHTBUTTON, the right mouse button selects items on the menu. Otherwise, the left button selects items on the menu. | |
| x | int Specifies the horizontal position in screen coordinates of the left side of the menu on the screen. | |
| y | int Specifies the vertical position in screen coordinates of the top of the menu on the screen. | |
| nReserved | int Is reserved and must be set to zero. | |
| hWnd | HWND Identifies the window which owns the pop-up menu. This window receives all WM_COMMAND messages from the menu. | |
| lpReserved | LPVOID Is reserved and must be set to NULL. |
The return value specifies the outcome of the function. It is TRUE if the function is successful. Otherwise, it is FALSE.