public static bool IsCutPrefferdDropEffect( IntPtr hwnd = default )
{
uint uFormat = PI.RegisterClipboardFormat( "Preferred DropEffect" );
bool flag = false;
if( PI.OpenClipboard( hwnd ) )
{
try
{
IntPtr clipboardData = PI.GetClipboardData( uFormat );
if( !( clipboardData != IntPtr.Zero ) )
{
return flag;
}
IntPtr source = PI.GlobalLock( clipboardData );
try
{
if( source != IntPtr.Zero )
{
byte[] destination = new byte[ 4 ];
Marshal.Copy( source, destination, 0, 4 );
flag = ( destination[ 0 ] & 2 ) != 0;
}
}
finally
{
PI.GlobalUnlock( clipboardData );
}
}
finally
{
PI.CloseClipboard();
}
}
return flag;
}
//!!!! we have heap corruption with this method despite the fact that everything looks right.
public static bool SetFileDropPaths( List<string> lstPaths, bool fCut, IntPtr hwnd = default )
{
string str = MakeFILEOPPATHS( lstPaths );
if( /*( hwnd != IntPtr.Zero ) &&*/ ( str.Length > 1 ) )
{
if( !PI.OpenClipboard( hwnd ) )
{
return false;
}
PI.EmptyClipboard();
try
{
PI.DROPFILES structure = new PI.DROPFILES();
structure.pFiles = Marshal.SizeOf( structure );
structure.fWide = true;
int size = Marshal.SizeOf( structure ) + ( str.Length * Marshal.SystemMaxDBCSCharSize );
IntPtr hMem = PI.GlobalAlloc( 0x42, (IntPtr)size );
if( hMem != IntPtr.Zero )
{
IntPtr ptr = PI.GlobalLock( hMem );
Marshal.StructureToPtr( structure, ptr, false );
Marshal.Copy( str.ToCharArray(), 0, PtrPlus( ptr, Marshal.SizeOf( structure ) ), str.Length );
PI.GlobalUnlock( hMem );
}
IntPtr ptr3 = PI.GlobalAlloc( 0x42, (IntPtr)4 );
if( ptr3 != IntPtr.Zero )
{
IntPtr destination = PI.GlobalLock( ptr3 );
byte[] source = new byte[ 4 ];
source[ 0 ] = fCut ? ( (byte)2 ) : ( (byte)5 );
Marshal.Copy( source, 0, destination, 4 );
PI.GlobalUnlock( ptr3 );
}
if( ( hMem != IntPtr.Zero ) && ( ptr3 != IntPtr.Zero ) )
{
uint uFormat = PI.RegisterClipboardFormat( "Preferred DropEffect" );
PI.SetClipboardData( PI.CF_HDROP, hMem );
PI.SetClipboardData( uFormat, ptr3 );
return true;
}
}
finally
{
PI.CloseClipboard();
}
}
return false;
}
public static List<string> GetFileDropPaths( IntPtr hwnd = default )
{
List<string> list = new List<string>();
if( PI.OpenClipboard( hwnd ) )
{
try
{
IntPtr clipboardData = PI.GetClipboardData( PI.CF_HDROP );
if( !( clipboardData != IntPtr.Zero ) )
{
return list;
}
IntPtr hDrop = PI.GlobalLock( clipboardData );
if( !( hDrop != IntPtr.Zero ) )
{
return list;
}
try
{
uint num = PI.DragQueryFile( hDrop, uint.MaxValue, null, 0 );
if( num > 0 )
{
for( uint i = 0; i < num; i++ )
{
const int MAX_PATH = 260;
StringBuilder lpszFile = new StringBuilder( MAX_PATH );
PI.DragQueryFile( hDrop, i, lpszFile, lpszFile.Capacity );
if( lpszFile.Length > 0 )
{
list.Add( lpszFile.ToString() );
}
}
}
return list;
}
finally
{
PI.GlobalUnlock( clipboardData );
}
}
finally
{
PI.CloseClipboard();
}
}
return list;
}
