/// <summary>
/// Carry out the command associated with a shortcut menu item.
/// </summary>
/// <param name="pici">
/// A pointer to a CMINVOKECOMMANDINFO or CMINVOKECOMMANDINFOEX structure
/// containing information about the command.
/// </param>
public void InvokeCommand(IntPtr pici)
{
bool isUnicode = false;
// Determine which structure is being passed in, CMINVOKECOMMANDINFO or
// CMINVOKECOMMANDINFOEX based on the cbSize member of lpcmi. Although
// the lpcmi parameter is declared in Shlobj.h as a CMINVOKECOMMANDINFO
// structure, in practice it often points to a CMINVOKECOMMANDINFOEX
// structure. This struct is an extended version of CMINVOKECOMMANDINFO
// and has additional members that allow Unicode strings to be passed.
CMINVOKECOMMANDINFO ici = (CMINVOKECOMMANDINFO)Marshal.PtrToStructure(
pici, typeof(CMINVOKECOMMANDINFO));
CMINVOKECOMMANDINFOEX iciex = new CMINVOKECOMMANDINFOEX();
if (ici.cbSize == Marshal.SizeOf(typeof(CMINVOKECOMMANDINFOEX)))
{
if ((ici.fMask & CMIC.CMIC_MASK_UNICODE) != 0)
{
isUnicode = true;
iciex = (CMINVOKECOMMANDINFOEX)Marshal.PtrToStructure(pici,
typeof(CMINVOKECOMMANDINFOEX));
}
}
// Determines whether the command is identified by its offset or verb.
// There are two ways to identify commands:
//
// 1) The command's verb string
// 2) The command's identifier offset
//
// If the high-order word of lpcmi->lpVerb (for the ANSI case) or
// lpcmi->lpVerbW (for the Unicode case) is nonzero, lpVerb or lpVerbW
// holds a verb string. If the high-order word is zero, the command
// offset is in the low-order word of lpcmi->lpVerb.
// For the ANSI case, if the high-order word is not zero, the command's
// verb string is in lpcmi->lpVerb.
if (!isUnicode && NativeMethods.HighWord(ici.verb.ToInt32()) != 0)
{
// Is the verb supported by this context menu extension?
if (Marshal.PtrToStringAnsi(ici.verb) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
string verb = Marshal.PtrToStringAnsi(ici.verb);
System.Windows.Forms.MessageBox.Show("Ansi - " + verb);
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
// For the Unicode case, if the high-order word is not zero, the
// command's verb string is in lpcmi->lpVerbW.
else if (isUnicode && NativeMethods.HighWord(iciex.verbW.ToInt32()) != 0)
{
// Is the verb supported by this context menu extension?
if (Marshal.PtrToStringUni(iciex.verbW) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
string verb = Marshal.PtrToStringAnsi(iciex.verbW);
System.Windows.Forms.MessageBox.Show("Unicode - " + verb);
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
// If the command cannot be identified through the verb string, then
// check the identifier offset.
else
{
int verb = NativeMethods.LowWord(ici.verb.ToInt32());
string temp = "start ";
// Loop over pairs with foreach
foreach (KeyValuePair <int, string> pair in pathMap)
{
temp += pair.Key + " " + pair.Value + " ";
}
//System.Windows.Forms.MessageBox.Show(verb.ToString() + temp);
if (pathMap.ContainsKey(verb))
{
//System.Windows.Forms.MessageBox.Show(pathMap[verb]);
if (System.Windows.Forms.DialogResult.OK ==
System.Windows.Forms.MessageBox.Show("Copy " + selectedFile + " to " + pathMap[verb] + "?", "Confirm Copy", System.Windows.Forms.MessageBoxButtons.OKCancel))
{
//System.Windows.Forms.MessageBox.Show("copying...");
try
{
File.Copy(this.selectedFile, Path.Combine(pathMap[verb], Path.GetFileName(this.selectedFile)));
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show("Unable to Copy: " + ex.Message);
}
}
//System.Windows.Forms.MessageBox.Show("done...");
}
else
{
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
}
/// <summary>
/// Carry out the command associated with a shortcut menu item.
/// </summary>
/// <param name="pici">
/// A pointer to a CMINVOKECOMMANDINFO or CMINVOKECOMMANDINFOEX structure
/// containing information about the command.
/// </param>
public void InvokeCommand(IntPtr pici)
{
bool isUnicode = false;
// Determine which structure is being passed in, CMINVOKECOMMANDINFO or
// CMINVOKECOMMANDINFOEX based on the cbSize member of lpcmi. Although
// the lpcmi parameter is declared in Shlobj.h as a CMINVOKECOMMANDINFO
// structure, in practice it often points to a CMINVOKECOMMANDINFOEX
// structure. This struct is an extended version of CMINVOKECOMMANDINFO
// and has additional members that allow Unicode strings to be passed.
CMINVOKECOMMANDINFO ici = (CMINVOKECOMMANDINFO)Marshal.PtrToStructure(
pici, typeof(CMINVOKECOMMANDINFO));
CMINVOKECOMMANDINFOEX iciex = new CMINVOKECOMMANDINFOEX();
if (ici.cbSize == Marshal.SizeOf(typeof(CMINVOKECOMMANDINFOEX)))
{
if ((ici.fMask & CMIC.CMIC_MASK_UNICODE) != 0)
{
isUnicode = true;
iciex = (CMINVOKECOMMANDINFOEX)Marshal.PtrToStructure(pici,
typeof(CMINVOKECOMMANDINFOEX));
}
}
// Determines whether the command is identified by its offset or verb.
// There are two ways to identify commands:
//
// 1) The command's verb string
// 2) The command's identifier offset
//
// If the high-order word of lpcmi->lpVerb (for the ANSI case) or
// lpcmi->lpVerbW (for the Unicode case) is nonzero, lpVerb or lpVerbW
// holds a verb string. If the high-order word is zero, the command
// offset is in the low-order word of lpcmi->lpVerb.
// For the ANSI case, if the high-order word is not zero, the command's
// verb string is in lpcmi->lpVerb.
if (!isUnicode && NativeMethods.HighWord(ici.verb.ToInt32()) != 0)
{
// Is the verb supported by this context menu extension?
if (Marshal.PtrToStringAnsi(ici.verb) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
// For the Unicode case, if the high-order word is not zero, the
// command's verb string is in lpcmi->lpVerbW.
else if (isUnicode && NativeMethods.HighWord(iciex.verbW.ToInt32()) != 0)
{
// Is the verb supported by this context menu extension?
if (Marshal.PtrToStringUni(iciex.verbW) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
// If the command cannot be identified through the verb string, then
// check the identifier offset.
else
{
// Is the command identifier offset supported by this context menu
// extension?
if (NativeMethods.LowWord(ici.verb.ToInt32()) == IDM_DISPLAY)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
// If the verb is not recognized by the context menu handler, it
// must return E_FAIL to allow it to be passed on to the other
// context menu handlers that might implement that verb.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
}
/// <summary>
/// 当用户点击相关联的菜单项后则调用该方法.
/// </summary>
/// <param name="pici">
/// 参数pici是一个指向包含相关必须信息的CMINVOKECOMMANDINFO或CMINVOKECOMMANDINFOEX指针
/// </param>
public void InvokeCommand(IntPtr pici)
{
bool isUnicode = false;
//检查什么类型的结构体被传递进函数，CMINVOKECOMMANDINFO还是CMINVOKECOMMANDINFOEX取决于
//lpcmi的成员变量cbSize，虽然lpcmi在 Shlobj.h中指向CMINVOKECOMMANDINFO结构体
//但通常lpcmi指向的是一个CMINVOKECOMMANDINFOEX结构体，CMINVOKECOMMANDINFOEX是CMINVOKECOMMANDINFO的扩展
//可以接受Unicode字符串
CMINVOKECOMMANDINFO ici = (CMINVOKECOMMANDINFO)Marshal.PtrToStructure(
pici, typeof(CMINVOKECOMMANDINFO));
CMINVOKECOMMANDINFOEX iciex = new CMINVOKECOMMANDINFOEX();
if (ici.cbSize == Marshal.SizeOf(typeof(CMINVOKECOMMANDINFOEX)))
{
if ((ici.fMask & CMIC.CMIC_MASK_UNICODE) != 0)
{
isUnicode = true;
iciex = (CMINVOKECOMMANDINFOEX)Marshal.PtrToStructure(pici,
typeof(CMINVOKECOMMANDINFOEX));
}
}
// 检查命令是动态的还是偏移产生的.
// 有两种方法来确定:
//
// 1) 命令是动态的
// 2) 命令是偏移的
//
//如果在ANSI的情况下lpcmi->lpVerb或Unicode情况下的lpcmi->lpVerbW为非0,且保存了一个动态的字符串则可以判断其为动态的，
//反之则可以确定为偏移的
if (!isUnicode && NativeMethods.HighWord(ici.lpVerb.ToInt32()) != 0)
{
//上下文菜单是否支持动态的
if (Marshal.PtrToStringAnsi(ici.lpVerb) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
// 如果上下文菜单处理程序不能识别该命令, 必须返回E_FAIL,并传递到其他的能识别该命令的上下文菜单项上,并抛出异常
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
//在Unicode情况下, 不为0, 动态命令保存在 lpcmi->lpVerbW.
else if (isUnicode && NativeMethods.HighWord(iciex.lpVerbW.ToInt32()) != 0)
{
// 该上下文菜单是否支持动态
if (Marshal.PtrToStringUni(iciex.lpVerbW) == this.verb)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
// 如果上下文菜单处理程序不能识别该命令, 必须返回E_FAIL,并传递到其他的能识别该命令的上下文菜单项上,并抛出异常
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
// 如果该命令不能通过动态确定,则可以确定为偏移的
else
{
//上下文菜单是否支持偏移的
if (NativeMethods.LowWord(ici.lpVerb.ToInt32()) == IDM_DISPLAY)
{
OnVerbDisplayFileName(ici.hwnd);
}
else
{
//如果上下文菜单处理程序不能识别该命令, 必须返回E_FAIL,并传递到其他的能识别该命令的上下文菜单项上.
Marshal.ThrowExceptionForHR(WinError.E_FAIL);
}
}
}