private static IntPtr LowLevelKeyboardProc(int nCode, uint wParam, IntPtr lParam)
{
if (nCode >= 0)
{
HookClass.KBDLLHOOKSTRUCT structure = (HookClass.KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(HookClass.KBDLLHOOKSTRUCT));
if (wParam == 257U)
{
frmControl openForm = (frmControl)Application.OpenForms["frmControl"];
if (openForm != null)
{
int count = openForm.listVerses.Items.Count;
int selectedIndex = openForm.listVerses.SelectedIndices[0];
if (structure.vkCode == 34)
{
if (selectedIndex + 1 <= count - 1)
{
openForm.listVerses.Items[selectedIndex + 1].Selected = true;
}
return(HookClass.CallNextHookEx(HookClass.keyHook, 0, 0U, IntPtr.Zero));
}
if (structure.vkCode == 33)
{
if (selectedIndex - 1 >= 0)
{
openForm.listVerses.Items[selectedIndex - 1].Selected = true;
}
return(HookClass.CallNextHookEx(HookClass.keyHook, 0, 0U, IntPtr.Zero));
}
}
}
}
return(HookClass.CallNextHookEx(HookClass.keyHook, nCode, wParam, lParam));
}
public void Main()
{
InLineHooker hooker = new InLineHooker();
var m1 = typeof(OrignClass).GetMethod("Add");
var m2 = typeof(HookClass).GetMethod("HookAdd");
var m3 = typeof(HookClass).GetMethod("Add");
var max = typeof(OrignClass).GetMethod("Max");
var min = typeof(HookClass).GetMethod("Min");
//调用m1时将调用m2然后调用m3,m1函数体不会执行
hooker.HookMethod(m1, m2, m3);
var orig = new OrignClass();
int t0 = orig.Add(11, 22);
int t1 = orig.Add(11, 22);
int t2 = orig.Add(33, 44);
var hc = new HookClass();
int tt = hc.Add(123, 123);
int zz = orig.Max(10, 20, 30);
int ww = hc.Min(10, 20, 30);
//将函数max 替换为函数min
hooker.ReplaceMethod(max, min);
zz = orig.Max(10, 20, 30);
ww = hc.Min(10, 20, 30);
}
private void frmMain_Load(object sender, EventArgs e)
{
this._Refresh();
foreach (FileSystemInfo file in new DirectoryInfo(this.sgPath).GetFiles("*.*", SearchOption.TopDirectoryOnly))
{
this.boxFind.AutoCompleteCustomSource.Add(file.Name);
}
this.saveImg.Visible = false;
this.boxFind.GotFocus += new EventHandler(this.boxFind_GotFocus);
this.listSongs.GotFocus += new EventHandler(this.boxFind_GotFocus);
HookClass.StartHook();
}
public static void StartHook()
{
HookClass.keyProc = new HookClass.HookProc(HookClass.LowLevelKeyboardProc);
HookClass.keyHook = HookClass.SetWindowsHookEx(13, HookClass.keyProc, HookClass.GetModuleHandle((string)null), 0U);
}
