private Bitmap GetBitmap(int index, ImageListDrawItemConstants flags)
{
var bitmapSize = GetImageListIconSize();
var bitmap = new Bitmap(bitmapSize.Width, bitmapSize.Height);
using (var g = Graphics.FromImage(bitmap))
{
try
{
g.FillRectangle(Brushes.White, new Rectangle(0, 0, bitmapSize.Width, bitmapSize.Height));
var hdc = g.GetHdc();
var pimldp = new NativeMethods.IMAGELISTDRAWPARAMS {
hdcDst = hdc
};
pimldp.cbSize = Marshal.SizeOf(pimldp.GetType());
pimldp.i = index;
pimldp.x = 0;
pimldp.y = 0;
pimldp.cx = bitmapSize.Width;
pimldp.cy = bitmapSize.Height;
pimldp.fStyle = (int)flags;
if (_iImageList == null || Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA)
{
NativeMethods.ImageList_DrawIndirect(ref pimldp);
}
else
{
_iImageList.Draw(ref pimldp);
}
}
finally
{
g.ReleaseHdc();
}
}
bitmap.MakeTransparent();
return(bitmap);
}
private Bitmap GetBitmap(int index, ImageListDrawItemConstants flags)
{
var bitmapSize = GetImageListIconSize();
var bitmap = new Bitmap(bitmapSize.Width, bitmapSize.Height);
using (var g = Graphics.FromImage(bitmap))
{
try
{
g.FillRectangle(Brushes.White, new Rectangle(0, 0, bitmapSize.Width, bitmapSize.Height));
var hdc = g.GetHdc();
var pimldp = new NativeMethods.IMAGELISTDRAWPARAMS { hdcDst = hdc };
pimldp.cbSize = Marshal.SizeOf(pimldp.GetType());
pimldp.i = index;
pimldp.x = 0;
pimldp.y = 0;
pimldp.cx = bitmapSize.Width;
pimldp.cy = bitmapSize.Height;
pimldp.fStyle = (int)flags;
if (_iImageList == null || Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA)
{
NativeMethods.ImageList_DrawIndirect(ref pimldp);
}
else
{
_iImageList.Draw(ref pimldp);
}
}
finally
{
g.ReleaseHdc();
}
}
bitmap.MakeTransparent();
return bitmap;
}
