Try one of these:
Code:
0x00ff58 Begin
0x00ff9d KP_Begin
It's from the list here: https://github.com/linuxmint/gtk/blo...k/keynames.txt
Here is the section with the above codes in it:
Code:
0x00ff50 Home
0x00ff51 Left
0x00ff52 Up
0x00ff53 Right
0x00ff54 Down
0x00ff55 Page_Up
0x00ff55 Prior
0x00ff56 Page_Down
0x00ff56 Next
0x00ff57 End
0x00ff58 Begin
0x00ff60 Select
0x00ff61 Print
0x00ff62 Execute
0x00ff63 Insert
0x00ff65 Undo
0x00ff66 Redo
0x00ff67 Menu
0x00ff68 Find
0x00ff69 Cancel
0x00ff6a Help
0x00ff6b Break
0x00ff7e Arabic_switch
0x00ff7e Greek_switch
0x00ff7e Hangul_switch
0x00ff7e Hebrew_switch
0x00ff7e ISO_Group_Shift
0x00ff7e kana_switch
0x00ff7e Mode_switch
0x00ff7e script_switch
0x00ff7f Num_Lock
0x00ff80 KP_Space
0x00ff89 KP_Tab
0x00ff8d KP_Enter
0x00ff91 KP_F1
0x00ff92 KP_F2
0x00ff93 KP_F3
0x00ff94 KP_F4
0x00ff95 KP_Home
0x00ff96 KP_Left
0x00ff97 KP_Up
0x00ff98 KP_Right
0x00ff99 KP_Down
0x00ff9a KP_Page_Up
0x00ff9a KP_Prior
0x00ff9b KP_Next
0x00ff9b KP_Page_Down
0x00ff9c KP_End
0x00ff9d KP_Begin
0x00ff9e KP_Insert
0x00ff9f KP_Delete
0x00ffaa KP_Multiply
0x00ffab KP_Add
0x00ffac KP_Separator
0x00ffad KP_Subtract
0x00ffae KP_Decimal
0x00ffaf KP_Divide
0x00ffb0 KP_0
0x00ffb1 KP_1
0x00ffb2 KP_2
0x00ffb3 KP_3
0x00ffb4 KP_4
0x00ffb5 KP_5
0x00ffb6 KP_6
0x00ffb7 KP_7
0x00ffb8 KP_8
0x00ffb9 KP_9
0x00ffbd KP_Equal
Maybe one of the following instead of "begin":
Code:
0x00ff80 KP_Space
0x00ff89 KP_Tab
0x00ff8d KP_Enter
You could of course press the key and print the keycode.