internal static PropertyItem[] ConvertFromMemory(IntPtr propdata, int count)
{
PropertyItem[] props = new PropertyItem[count];
for (int i = 0; i < count; i++)
{
PropertyItemInternal propcopy = null;
try
{
propcopy = (PropertyItemInternal)Marshal.PtrToStructure(propdata,
typeof(PropertyItemInternal));
props[i] = new PropertyItem();
props[i].Id = propcopy.id;
props[i].Len = propcopy.len;
props[i].Type = propcopy.type;
// this calls Marshal.Copy and creates a copy of the original memory into a byte array.
props[i].Value = propcopy.Value;
propcopy.value = IntPtr.Zero; // we dont actually own this memory so dont free it.
}
finally
{
if (propcopy != null)
{
propcopy.Dispose();
}
}
propdata = (IntPtr)((long)propdata + (int)Marshal.SizeOf(typeof(PropertyItemInternal)));
}
return(props);
}
internal static PropertyItemInternal ConvertFromPropertyItem(PropertyItem propItem) {
PropertyItemInternal propItemInternal = new PropertyItemInternal();
propItemInternal.id = propItem.Id;
propItemInternal.len = 0;
propItemInternal.type = propItem.Type;
byte[] propItemValue = propItem.Value;
if (propItemValue != null) {
int length = propItemValue.Length;
propItemInternal.len = length;
propItemInternal.value = Marshal.AllocHGlobal(length);
Marshal.Copy(propItemValue, 0, propItemInternal.value, length);
}
return propItemInternal;
}
internal static PropertyItemInternal ConvertFromPropertyItem(PropertyItem propItem)
{
PropertyItemInternal internal2 = new PropertyItemInternal {
id = propItem.Id,
len = 0,
type = propItem.Type
};
byte[] source = propItem.Value;
if (source != null)
{
int length = source.Length;
internal2.len = length;
internal2.value = Marshal.AllocHGlobal(length);
Marshal.Copy(source, 0, internal2.value, length);
}
return internal2;
}
internal static PropertyItemInternal ConvertFromPropertyItem(PropertyItem propItem)
{
PropertyItemInternal propItemInternal = new PropertyItemInternal();
propItemInternal.id = propItem.Id;
propItemInternal.len = propItem.Len;
propItemInternal.type = propItem.Type;
byte[] propItemValue = propItem.Value;
if (propItemValue != null)
{
propItemInternal.value = Marshal.AllocHGlobal(propItemValue.Length);
Marshal.Copy(propItemValue, 0, propItemInternal.value, propItemValue.Length);
}
return(propItemInternal);
}
internal static PropertyItemInternal ConvertFromPropertyItem(PropertyItem propItem)
{
PropertyItemInternal internal2 = new PropertyItemInternal {
id = propItem.Id,
len = 0,
type = propItem.Type
};
byte[] source = propItem.Value;
if (source != null)
{
int length = source.Length;
internal2.len = length;
internal2.value = Marshal.AllocHGlobal(length);
Marshal.Copy(source, 0, internal2.value, length);
}
return(internal2);
}
internal static PropertyItem[] ConvertFromMemory(IntPtr propdata, int count)
{
PropertyItem[] itemArray = new PropertyItem[count];
for (int i = 0; i < count; i++)
{
using (PropertyItemInternal internal2 = null)
{
internal2 = (PropertyItemInternal)UnsafeNativeMethods.PtrToStructure(propdata, typeof(PropertyItemInternal));
itemArray[i] = new PropertyItem();
itemArray[i].Id = internal2.id;
itemArray[i].Len = internal2.len;
itemArray[i].Type = internal2.type;
itemArray[i].Value = internal2.Value;
internal2.value = IntPtr.Zero;
}
propdata = (IntPtr)(((long)propdata) + Marshal.SizeOf(typeof(PropertyItemInternal)));
}
return(itemArray);
}
internal static PropertyItem[] ConvertFromMemory(IntPtr propdata, int count)
{
PropertyItem[] props = new PropertyItem[count];
for (int i = 0; i < count; i++)
{
PropertyItemInternal propcopy = (PropertyItemInternal)UnsafeNativeMethods.PtrToStructure(propdata,
typeof(PropertyItemInternal));
props[i] = new PropertyItem();
props[i].Id = propcopy.id;
props[i].Len = propcopy.len;
props[i].Type = propcopy.type;
props[i].Value = propcopy.Value;
propdata = (IntPtr)((long)propdata + (int)Marshal.SizeOf(typeof(PropertyItemInternal)));
}
return(props);
}
internal static extern int GdipSetPropertyItem(HandleRef image, PropertyItemInternal propitem);