C / C++ / MFC

void SwapXor(UINT *a, UINT *b)
{
	*a = *a ^ *b;
	*b = *a ^ *b;
	*a = *a ^ *b;
}

image00400000+0x1000:
00401000 8b4c2408         mov     ecx,[esp+0x8] ; ecx = b
00401004 8b442404         mov     eax,[esp+0x4] ; eax = a
00401008 56               push    esi
00401009 8b11             mov     edx,[ecx]     ; edx = *b
0040100b 8b30             mov     esi,[eax]     ; esi = *a
0040100d 33f2             xor     esi,edx       ; temp = *a ^ *b
0040100f 8930             mov     [eax],esi     ; *a = esi(temp)
00401011 8bd6             mov     edx,esi       ; edx = *a
00401013 8b31             mov     esi,[ecx]     ; esi = *b
00401015 33f2             xor     esi,edx       ; temp = *b ^ *a
00401017 8931             mov     [ecx],esi     ; *b = esi (temp)
00401019 8b10             mov     edx,[eax]     ; edx = *a
0040101b 8bce             mov     ecx,esi       ; ecx = *b
0040101d 5e               pop     esi
0040101e 33d1             xor     edx,ecx       ; temp = *a ^ *b
00401020 8910             mov     [eax],edx     ; *a = edx(temp)
00401022 c3               ret

void SwapTemp(UINT *a, UINT *b)
{
	UINT Temp;

	Temp = *a;
	*a = *b;
	*b = Temp;
}

00401030 8b542408         mov     edx,[esp+0x8] ; edx = b
00401034 8b442404         mov     eax,[esp+0x4] ; eax = a
00401038 56               push    esi
00401039 8b32             mov     esi,[edx]     ; esi = *b
0040103b 8b08             mov     ecx,[eax]     ; ecx = *a
0040103d 8930             mov     [eax],esi     ; *a  = esi
0040103f 890a             mov     [edx],ecx     ; *b  = ecx
00401041 5e               pop     esi
00401042 c3               ret

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

menu.LoadMenu(IDR_MENU_TREE);
CMenu* pSubMenu = menu.GetSubmenu(0);//Get first submenu
if (pSubMenu != NULL)
{
  pSubMenu.TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,
    pp.x, pp.y, AfxGetMainWnd()); //use main window for cmds
}