public void ImageListStreamer_RoundTripAndExchangeWithNet()
{
string netBlob;
using (var imageList = new ImageList()
{
ImageSize = new Size(16, 16),
TransparentColor = Color.White
})
{
imageList.Images.Add(new Bitmap(16, 16));
netBlob = BinarySerialization.ToBase64String(imageList.ImageStream);
}
// ensure we can deserialise NET serialised data and continue to match the payload
ValidateResult(netBlob);
// ensure we can deserialise NET Fx serialised data and continue to match the payload
ValidateResult(ClassicImageListStreamer);
void ValidateResult(string blob)
{
ImageListStreamer result = BinarySerialization.EnsureDeserialize <ImageListStreamer>(blob);
using (NativeImageList nativeImageList = result.GetNativeImageList())
{
Assert.True(SafeNativeMethods.ImageList_GetIconSize(new HandleRef(this, nativeImageList.Handle), out int x, out int y));
Assert.Equal(16, x);
Assert.Equal(16, y);
NativeMethods.IMAGEINFO imageInfo = new NativeMethods.IMAGEINFO();
Assert.True(SafeNativeMethods.ImageList_GetImageInfo(new HandleRef(this, nativeImageList.Handle), 0, imageInfo));
Assert.True(IntPtr.Zero != imageInfo.hbmImage);
}
}
}
private void ValidateImageListStreamer(string blob)
{
var result = BinarySerialization.EnsureDeserialize <ImageListStreamer>(blob);
using (NativeImageList nativeImageList = result.GetNativeImageList())
{
Assert.True(SafeNativeMethods.ImageList_GetIconSize(new HandleRef(this, nativeImageList.Handle), out int x, out int y));
Assert.Equal(16, x);
Assert.Equal(16, y);
NativeMethods.IMAGEINFO imageInfo = new NativeMethods.IMAGEINFO();
Assert.True(SafeNativeMethods.ImageList_GetImageInfo(new HandleRef(this, nativeImageList.Handle), 0, imageInfo));
Assert.True(IntPtr.Zero != imageInfo.hbmImage);
}
}
/// <include file='doc\ImageList.uex' path='docs/doc[@for="ImageList.GetImageInfo"]/*' />
/// <devdoc>
/// </devdoc>
/// <internalonly/>
internal NativeMethods.IMAGEINFO GetImageInfo(int index)
{
if (index < 0 || index >= Images.Count)
{
throw new ArgumentOutOfRangeException(SR.GetString(SR.InvalidArgument,
"index",
index.ToString()));
}
NativeMethods.IMAGEINFO info = new NativeMethods.IMAGEINFO();
if (SafeNativeMethods.ImageList_GetImageInfo(new HandleRef(this, Handle), index, info) == false)
{
throw new InvalidOperationException(SR.GetString(SR.ImageListGetFailed));
}
return(info);
}
private Size GetImageIconSize(int index)
{
var imgInfo = new NativeMethods.IMAGEINFO();
int hr;
if (_iImageList == null || Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA)
{
hr = NativeMethods.ImageList_GetImageInfo(_ptrImageList, index, ref imgInfo);
}
else
{
hr = _iImageList.GetImageInfo(index, ref imgInfo);
}
if (hr != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
var rect = imgInfo.rcImage;
return(new Size(rect.right - rect.left, rect.bottom - rect.top));
}
public static extern bool ImageList_GetImageInfo(HandleRef himl, int i, NativeMethods.IMAGEINFO pImageInfo);
private Size GetImageIconSize(int index)
{
var imgInfo = new NativeMethods.IMAGEINFO();
int hr;
if (_iImageList == null || Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA)
hr = NativeMethods.ImageList_GetImageInfo(_ptrImageList, index, ref imgInfo);
else hr = _iImageList.GetImageInfo(index, ref imgInfo);
if (hr != 0)
Marshal.ThrowExceptionForHR(hr);
var rect = imgInfo.rcImage;
return new Size(rect.right - rect.left, rect.bottom - rect.top);
}
