|
private DwmQueryThumbnailSourceSize ( |
||
| HThumbnail | ||
| size | Size | |
| return | int | |
protected override Size MeasureOverride(Size availableSize)
{
try
{
DWM.Size size;
DWM.DwmQueryThumbnailSourceSize(this.thumb, out size);
double scale = 1;
// our preferred size is the thumbnail source size
// if less space is available, we scale appropriately
if (size.Width > availableSize.Width)
{
scale = availableSize.Width / size.Width;
}
if (size.Height > availableSize.Height)
{
scale = Math.Min(scale, availableSize.Height / size.Height);
}
return(new Size(size.Width * scale, size.Height * scale));
}
catch (DllNotFoundException) { }
return(new Size());
}
protected override Size ArrangeOverride(Size finalSize)
{
try
{
DWM.Size size;
DWM.DwmQueryThumbnailSourceSize(this.thumb, out size);
// scale to fit whatever size we were allocated
double scale = finalSize.Width / size.Width;
scale = Math.Min(scale, finalSize.Height / size.Height);
return(new Size(size.Width * scale, size.Height * scale));
}
catch (DllNotFoundException)
{
return(default(Size));
}
}
