private static bool GetPrefferdDropEffect(IntPtr hwnd)
{
uint uFormat = PInvoke.RegisterClipboardFormat("Preferred DropEffect");
bool flag = false;
if (PInvoke.OpenClipboard(hwnd))
{
try {
IntPtr clipboardData = PInvoke.GetClipboardData(uFormat);
if (!(clipboardData != IntPtr.Zero))
{
return(flag);
}
IntPtr source = PInvoke.GlobalLock(clipboardData);
try {
if (source != IntPtr.Zero)
{
byte[] destination = new byte[4];
Marshal.Copy(source, destination, 0, 4);
flag = (destination[0] & 2) != 0;
}
}
finally {
PInvoke.GlobalUnlock(clipboardData);
}
}
finally {
PInvoke.CloseClipboard();
}
}
return(flag);
}
private static List <string> ClipboardGetFileDropList(IntPtr hwnd)
{
List <string> list = new List <string>();
if (PInvoke.OpenClipboard(hwnd))
{
try {
IntPtr clipboardData = PInvoke.GetClipboardData(15);
if (!(clipboardData != IntPtr.Zero))
{
return(list);
}
IntPtr hDrop = PInvoke.GlobalLock(clipboardData);
if (!(hDrop != IntPtr.Zero))
{
return(list);
}
try {
uint num = PInvoke.DragQueryFile(hDrop, uint.MaxValue, null, 0);
if (num > 0)
{
for (uint i = 0; i < num; i++)
{
StringBuilder lpszFile = new StringBuilder(260);
PInvoke.DragQueryFile(hDrop, i, lpszFile, lpszFile.Capacity);
if (lpszFile.Length > 0)
{
list.Add(lpszFile.ToString());
}
}
}
return(list);
}
finally {
PInvoke.GlobalUnlock(clipboardData);
}
}
finally {
PInvoke.CloseClipboard();
}
}
return(list);
}