An application sends a ZGM_SHOWCOPYMENU message to enable or disable the display of the copy/paste context menu when the user right-clicks the selected cell or highlighted range of cells. If the setting is FALSE (disabled), the grid will post a ZGN_RIGHTCLICK message to the host application. If the setting is TRUE (enabled), the context menu is displayed, and the ZGN_RIGHTCLICK message is not sent to the host application.
ZGM_SHOWCOPYMENU
wParam = (WPARAM) (BOOL) fEnable; //enable flag
lParam = 0; //not used; must be zero
This message does not return a value.
This setting is enabled (TRUE) by default.