public static X11Bitmap Create(IntPtr display, IntPtr visual, int width, int height)
{
if (width < 0 || height < 0)
{
throw new ArgumentException($"Image dimensions cannot be negative ({width} x {height}).");
}
IntPtr imageData = Marshal.AllocHGlobal(4 * width * height);
IntPtr xImage = IntPtr.Zero;
try
{
xImage = LibX11.XCreateImage
(
display,
visual,
X11Application.RequiredColorDepth,
XImageFormat.ZPixmap,
0,
imageData,
(uint)width,
(uint)height,
X11Application.RequiredColorDepth,
width * 4
);
X11Bitmap bitmap = new X11Bitmap(xImage, imageData);
xImage = IntPtr.Zero;
imageData = IntPtr.Zero;
return(bitmap);
}
finally
{
if (xImage != IntPtr.Zero)
{
LibX11.XDestroyImage(xImage);
}
else if (imageData != IntPtr.Zero)
{
Marshal.FreeHGlobal(imageData);
}
}
}
public void Dispose()
{
// todo: use finalizer?
LibX11.XDestroyImage(XImage);
}