Specifies mouse notification codes for Thumbnail GUI window.
Values:
| IG_GUI_MOUSE_LDOWN | Mouse event is left button down. |
| IG_GUI_MOUSE_LUP | Mouse event is left button up. |
| IG_GUI_MOUSE_LDBL | Mouse event is left button double click. |
| IG_GUI_MOUSE_RDOWN | Mouse event is right button down. |
| IG_GUI_MOUSE_RUP | Mouse event is right button up. |
| IG_GUI_MOUSE_RDBL | Mouse event is right button double click. |
Remarks:
This enumeration is used by LPFNIG_GUITHUMBMOUSE callbacks function.