|
private GlobalUnlock ( |
||
| h | ||
| return | bool | |
public static SafeGlobalAllocHandle CopyHGlobal(SafeGlobalAllocHandle data)
{
IntPtr src = UnsafeNativeMethods.GlobalLock(data);
UIntPtr size = UnsafeNativeMethods.GlobalSize(data);
SafeGlobalAllocHandle ptr = UnsafeNativeMethods.GlobalAlloc(0, size);
IntPtr buffer = UnsafeNativeMethods.GlobalLock(ptr);
try
{
UnsafeNativeMethods.MoveMemory(buffer, src, size);
}
finally
{
if (buffer != IntPtr.Zero)
{
UnsafeNativeMethods.GlobalUnlock(ptr);
}
if (src != IntPtr.Zero)
{
UnsafeNativeMethods.GlobalUnlock(data);
}
}
return(ptr);
}
/// <summary>
/// Returns the data packed after the DROPFILES structure.
/// </summary>
/// <param name="dropHandle"></param>
/// <returns></returns>
public static string GetData(SafeGlobalAllocHandle dropHandle)
{
IntPtr data = UnsafeNativeMethods.GlobalLock(dropHandle);
try
{
_DROPFILES df = (_DROPFILES)Marshal.PtrToStructure(data, typeof(_DROPFILES));
if (df.fWide)
{
IntPtr pdata = new IntPtr((long)data + df.pFiles);
return(Marshal.PtrToStringUni(pdata));
}
}
finally
{
if (data != null)
{
UnsafeNativeMethods.GlobalUnlock(dropHandle);
}
}
return(null);
}