/// <summary>
/// Renders the file names in a DROPFILE structure that can be used along with the CF_DROP.
/// </summary>
/// <param name="fileNames">The file names.</param>
/// <returns>A pointer to a global memory handle containing the DROPFILES structure with the file names appended behind.</returns>
public static IntPtr RenderFiles(IEnumerable <string> fileNames)
{
// build array with zero terminated file names and double zero at the end
var str = new List <byte>();
var enc = System.Text.Encoding.Unicode;
foreach (var fileName in fileNames)
{
str.AddRange(enc.GetBytes(fileName));
str.AddRange(enc.GetBytes("\0")); // Terminate each fileName with a zero
}
str.AddRange(enc.GetBytes("\0")); // Terminate with an additional zero
var byteData = str.ToArray();
// Allocate and get pointer to global memory
var dropFiles = new DROPFILES();
int totalLength = Marshal.SizeOf(dropFiles) + byteData.Length;
var ipGlobal = Marshal.AllocHGlobal(totalLength);
if (ipGlobal != IntPtr.Zero)
{
// Build DROPFILES structure in global memory.
dropFiles.pFiles = Marshal.SizeOf(dropFiles);
dropFiles.fWide = 1; // for unicode-encoding
Marshal.StructureToPtr(dropFiles, ipGlobal, true);
var ipNew = new IntPtr(ipGlobal.ToInt64() + Marshal.SizeOf(dropFiles));
Marshal.Copy(byteData, 0, ipNew, byteData.Length);
}
return(ipGlobal);
}
public bool StartProcess()
{
if (!IsOpen || !System.IO.Directory.Exists(FilesPath))
{
return(false);
}
//IntPtr hwnd = this.Handle;
DROPFILES s = new DROPFILES();
s.size = 20; //<-- 20 is the size of this struct in memory
s.pt = new POINT(10, 10); //<-- drop file 20 pixels from left, total height minus 40 from top
s.fND = false; //<-- the point 0;0 will be in the window
s.WIDE = false; //<-- ANSI
//Get all files from the folder
string[] files = System.IO.Directory.GetFiles(FilesPath);
//string[] files = { "C:\\Universal.0000\0", "C:\\Universal.0001\0" }; //<-- add null terminator at end
Int32 lengthFiles = 0;
foreach (String file in files)
{
lengthFiles += file.Length + 2; //<-- add null terminator at end
}
Int32 filelen = Convert.ToInt32(lengthFiles);
byte[] bytes = RawSerialize(s);
int structlen = (int)bytes.Length;
int size = structlen + filelen + 1;
IntPtr p = Marshal.AllocHGlobal(size); //<-- allocate memory and save pointer to p
GlobalLock(p); //<-- lock p
int i = 0;
for (i = 0; i < structlen; i++)
{
Marshal.WriteByte(p, i, bytes[i]);
}
foreach (String file in files)
{
byte[] b = ASCIIEncoding.ASCII.GetBytes(file + "\0"); //<-- convert filepath to bytearray //<-- add null terminator at end
for (int k = 0; k < b.Length; k++)
{
Marshal.WriteByte(p, i, b[k]);
i++;
}
}
//Write the end of the parameters to Send to the Window
Marshal.WriteByte(p, i, 0);
GlobalUnlock(p);
PostMessage(Handle, WM_DROPFILES, p, IntPtr.Zero);
//Process the files dragged
int wParam = (BN_CLICKED << 16) | (ButtonId & 0xffff);
SendMessage(Handle, WM_COMMAND, wParam, hWndButton);
//Release all objects'
//Marshal.FreeHGlobal(p);
return(true);
}
static void Main(string[] args)
{
//IntPtr handle = IntPtr.Zero;
//Process[] localAll = Process.GetProcesses();
//Process mainProc = null;
//foreach (Process proc in localAll)
//{
// if (proc.MainWindowHandle != IntPtr.Zero)
// {
// ProcessModule pm = GetModule(proc);
// if (pm != null && proc.MainModule.FileName.ToUpper() == fn.ToUpper()) {
// handle = proc.MainWindowHandle;
// mainProc = proc;
// }
// }
//}
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName = fn;
Process.Start(startInfo);
IntPtr handle = IntPtr.Zero;
Process mainProc = null;
while (handle == IntPtr.Zero)
{
Process[] localAll = Process.GetProcesses();
foreach (Process proc in localAll)
{
if (proc.MainWindowHandle != IntPtr.Zero)
{
ProcessModule pm = GetModule(proc);
if (pm != null && proc.MainModule.FileName.ToUpper() == fn.ToUpper())
{
handle = proc.MainWindowHandle;
mainProc = proc;
}
}
}
}
if (handle == IntPtr.Zero)
{
Console.WriteLine("Not found");
return;
}
Console.WriteLine("{0:X}", handle);
//Process the file computation'
IntPtr hWndList = GetDlgItem(handle, ListId);
//IntPtr hwnd = this.Handle;
DROPFILES s = new DROPFILES();
s.size = 20; //<-- 20 is the size of this struct in memory
s.pt = new POINT(10, 10); //<-- drop file 20 pixels from left, total height minus 40 from top
s.fND = false; //<-- the point 0;0 will be in the window
s.WIDE = false; //<-- ANSI
string[] files = { "C:\\Universal.0000\0", "C:\\Universal.0001\0" }; //<-- add null terminator at end
Int32 lengthFiles = 0;
foreach (String file in files)
{
lengthFiles += file.Length;
}
Int32 filelen = Convert.ToInt32(lengthFiles);
byte[] bytes = RawSerialize(s);
int structlen = (int)bytes.Length;
int size = structlen + filelen + 1;
IntPtr p = Marshal.AllocHGlobal(size); //<-- allocate memory and save pointer to p
GlobalLock(p); //<-- lock p
int i = 0;
for (i = 0; i < structlen; i++)
{
Marshal.WriteByte(p, i, bytes[i]);
Console.WriteLine("Wrote header byte " + i.ToString() + " of " + size.ToString());
}
foreach (String file in files)
{
byte[] b = ASCIIEncoding.ASCII.GetBytes(file); //<-- convert filepath to bytearray
for (int k = 0; k < file.Length; k++)
{
Marshal.WriteByte(p, i, b[k]);
Console.WriteLine("Wrote filename byte " + i.ToString() + " of " + size.ToString());
i++;
}
}
Marshal.WriteByte(p, i, 0);
GlobalUnlock(p);
PostMessage(handle, WM_DROPFILES, p, IntPtr.Zero);
//Process the file computation'
IntPtr hWndButton = GetDlgItem(handle, ButtonId);
//Get default text
String DefaultButtonText = String.Empty;
const int nChars = 256;
StringBuilder Buff = new StringBuilder(nChars);
if (GetWindowText(hWndButton, Buff, nChars) > 0)
{
DefaultButtonText = Buff.ToString();
}
int wParam = (BN_CLICKED << 16) | (ButtonId & 0xffff);
SendMessage(handle, WM_COMMAND, wParam, hWndButton);
Console.WriteLine("Message sent");
Buff.Length = 0;
string CurrentButtonText = String.Empty;
while (CurrentButtonText != DefaultButtonText)
{
if (GetWindowText(hWndButton, Buff, nChars) > 0)
{
CurrentButtonText = Buff.ToString();
Buff.Length = 0;
}
}
//kILL PROCESS
mainProc.Kill();
//mainProc.WaitForExit();
//Release all objects'
//Marshal.FreeHGlobal(p);
}
private static bool CopyFilesToClipboard(string[] strFiles, POINT pt, out int error)
{
var dropfiles = new DROPFILES();
int intFile;
// Calculate total data length
int intDataLen = 0;
for (intFile = 0; intFile <= strFiles.GetUpperBound(0); intFile++)
{
intDataLen += strFiles[intFile].Length + 1;
}
intDataLen++; // Terminating double zero
var bData = new byte[intDataLen];
int intPos = 0;
// Build null terminated list of files
for (intFile = 0; intFile <= strFiles.GetUpperBound(0); intFile++)
{
int intChar;
for (intChar = 0; intChar < strFiles[intFile].Length; intChar++)
{
bData[intPos++] = (byte)strFiles[intFile][intChar];
}
bData[intPos++] = 0;
}
bData[intPos] = 0; // Terminating double zero
// Allocate and get pointer to global memory
int intTotalLen = Marshal.SizeOf(dropfiles) + intDataLen;
IntPtr ipGlobal = Marshal.AllocHGlobal(intTotalLen);
if (ipGlobal == IntPtr.Zero)
{
error = Marshal.GetLastWin32Error();
return(false);
}
// Build DROPFILES structure in global memory.
dropfiles.pFiles = Marshal.SizeOf(dropfiles);
dropfiles.pt = pt;
dropfiles.fNC = false;
dropfiles.fWide = 0;
Marshal.StructureToPtr(dropfiles, ipGlobal, true);
var ipNew = new IntPtr(ipGlobal.ToInt32() + Marshal.SizeOf(dropfiles));
Marshal.Copy(bData, 0, ipNew, intDataLen);
// Open and empty clipboard
if (!OpenClipboard(IntPtr.Zero))
{
error = Marshal.GetLastWin32Error();
return(false);
}
EmptyClipboard();
// Copy data to clipboard
var result = SetClipboardData((int)CLIPFORMAT.CF_HDROP, ipGlobal);
bool success = (result != IntPtr.Zero);
error = Marshal.GetLastWin32Error();
if (!success)
{
Marshal.FreeHGlobal(ipGlobal);
}
// Clean up
CloseClipboard();
return(success);
}
private static bool CopyFilesToClipboard(string[] strFiles, POINT pt, out int error)
{
var dropfiles = new DROPFILES();
int intFile;
// Calculate total data length
int intDataLen = 0;
for (intFile = 0; intFile <= strFiles.GetUpperBound(0); intFile++)
intDataLen += strFiles[intFile].Length + 1;
intDataLen++; // Terminating double zero
var bData = new byte[intDataLen];
int intPos = 0;
// Build null terminated list of files
for (intFile = 0; intFile <= strFiles.GetUpperBound(0); intFile++)
{
int intChar;
for (intChar = 0; intChar < strFiles[intFile].Length; intChar++)
bData[intPos++] = (byte) strFiles[intFile][intChar];
bData[intPos++] = 0;
}
bData[intPos] = 0; // Terminating double zero
// Allocate and get pointer to global memory
int intTotalLen = Marshal.SizeOf(dropfiles) + intDataLen;
IntPtr ipGlobal = Marshal.AllocHGlobal(intTotalLen);
if (ipGlobal == IntPtr.Zero)
{
error = Marshal.GetLastWin32Error();
return false;
}
// Build DROPFILES structure in global memory.
dropfiles.pFiles = Marshal.SizeOf(dropfiles);
dropfiles.pt = pt;
dropfiles.fNC = false;
dropfiles.fWide = 0;
Marshal.StructureToPtr(dropfiles, ipGlobal, true);
var ipNew = new IntPtr(ipGlobal.ToInt32() + Marshal.SizeOf(dropfiles));
Marshal.Copy(bData, 0, ipNew, intDataLen);
// Open and empty clipboard
if (!OpenClipboard(IntPtr.Zero))
{
error = Marshal.GetLastWin32Error();
return false;
}
EmptyClipboard();
// Copy data to clipboard
var result = SetClipboardData((int)CLIPFORMAT.CF_HDROP, ipGlobal);
bool success = (result != IntPtr.Zero);
error = Marshal.GetLastWin32Error();
if (!success)
Marshal.FreeHGlobal(ipGlobal);
// Clean up
CloseClipboard();
return success;
}
