public bool Install()
{
if (_installed)
{
return(false);
}
// Process
if (_process == null)
{
_process = new RUser32.HWindowsHook(HookProcess);
}
// Scope
if (_scope == EHookScope.Thread)
{
_nextHookPtr = RUser32.SetWindowsHookEx((int)_type, _process, IntPtr.Zero, RKernel32.GetCurrentThreadId());
}
if (_scope == EHookScope.Global)
{
//IntPtr ptr = Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]);
string modulename = global::System.Diagnostics.Process.GetCurrentProcess().MainModule.ModuleName;
IntPtr ptr = RKernel32.GetModuleHandle(modulename);
_nextHookPtr = RUser32.SetWindowsHookEx((int)_type, _process, ptr, 0);
}
_installed = true;
return(true);
}
public void Release()
{
if (_menuHandle != IntPtr.Zero)
{
RUser32.DestroyMenu(_menuHandle);
_menuHandle = IntPtr.Zero;
}
}
//============================================================
public static string GetWindowText(IntPtr hWnd)
{
int length = RUser32.GetWindowTextLength(hWnd);
StringBuilder sb = new StringBuilder(length);
RUser32.GetWindowText(hWnd, sb, length);
return(sb.ToString());
}
public void Insert(string text, bool enable)
{
EMft extraFlag = enable ? 0 : EMft.GRAYED;
RUser32.InsertMenu(_menuHandle, 0, EMft.BYPOSITION | extraFlag, (int)(RWinShell.CMD_LAST + 1), text);
RUser32.InsertMenu(_menuHandle, 1, EMft.BYPOSITION | EMft.SEPARATOR, 0, "-");
RUser32.SetMenuDefaultItem(_menuHandle, 0, true);
}
public void Create()
{
if (_menuHandle == IntPtr.Zero)
{
_menuHandle = RUser32.CreatePopupMenu();
_face.QueryContextMenu(_menuHandle, 0, RWinShell.CMD_FIRST, RWinShell.CMD_LAST, ECmf.NORMAL | ECmf.EXPLORE);
}
}
public bool Uninstall()
{
if (!_installed)
{
return(false);
}
RUser32.UnhookWindowsHookEx(_nextHookPtr);
_nextHookPtr = IntPtr.Zero;
_installed = false;
return(true);
}
//============================================================
public static Control GetFocusedControl()
{
Control control = null;
IntPtr handle = RUser32.GetFocus();
if (handle != IntPtr.Zero)
{
control = Control.FromHandle(handle);
}
return(control);
}
// 0: 令待完成的动作继续完成
// 1: 则取消原本要完成的动作
protected IntPtr HookProcess(int code, IntPtr wparam, IntPtr lparam)
{
if (code >= 0)
{
if (Process(code, wparam, lparam))
{
return((IntPtr)1);
}
}
return(RUser32.CallNextHookEx(_nextHookPtr, code, wparam, lparam));
/*if (Process(code, wparam, lparam)) {
* return (IntPtr)1;
* }*/
//return IntPtr.Zero;
}
public void InvokeDefault(int x, int y)
{
Create();
int defaultCommand = RUser32.GetMenuDefaultItem(_menuHandle, false, 0);
if (defaultCommand != -1)
{
SCmInvokeCommandInfoEX invoke = new SCmInvokeCommandInfoEX();
invoke.cbSize = Marshal.SizeOf(typeof(SCmInvokeCommandInfoEX));
invoke.lpVerb = (IntPtr)(defaultCommand - RWinShell.CMD_FIRST);
invoke.lpDirectory = string.Empty;
invoke.fMask = 0;
invoke.ptInvoke = new SPoint();
invoke.ptInvoke.x = x;
invoke.ptInvoke.y = y;
invoke.nShow = 1;
_face.InvokeCommand(ref invoke);
}
}
public int Popup(IntPtr handle, int x, int y)
{
Create();
uint cmd = RUser32.TrackPopupMenuEx(_menuHandle, ETrackPopupMenu.RETURNCMD, x, y, handle, IntPtr.Zero);
_menuHandle = IntPtr.Zero;
if (cmd >= RWinShell.CMD_FIRST)
{
SCmInvokeCommandInfoEX invoke = new SCmInvokeCommandInfoEX();
invoke.cbSize = Marshal.SizeOf(typeof(SCmInvokeCommandInfoEX));
invoke.lpVerb = (IntPtr)(cmd - 1);
invoke.lpDirectory = string.Empty;
invoke.fMask = 0;
invoke.ptInvoke = new SPoint();
invoke.ptInvoke.x = x;
invoke.ptInvoke.y = y;
invoke.nShow = 1;
_face.InvokeCommand(ref invoke);
}
return((int)cmd);
}
