public static X11Graphics Create(IntPtr display)
{
int defaultScreen = LibX11.XDefaultScreen(display);
ulong defaultRootWindow = LibX11.XDefaultRootWindow(display);
//todo: is is safe to keep pictFormatPtr after reading it into XRenderPictFormat
IntPtr pictFormatPtr = LibXRender.XRenderFindStandardFormat(display, StandardPictFormat.PictStandardARGB32);
if (pictFormatPtr == IntPtr.Zero)
{
throw new InvalidOperationException("Display does not support 32-bit ARGB.");
}
XRenderPictFormat pictFormat = Marshal.PtrToStructure <XRenderPictFormat>(pictFormatPtr);
int status = LibX11.XMatchVisualInfo
(
display,
defaultScreen,
pictFormat.depth,
VisualClass.TrueColor,
out XVisualInfo visualInfo
);
if (status == 0)
{
throw new InvalidOperationException($"TrueColor visual with depth {pictFormat.depth} does not exist.");
}
ulong colorMap = LibX11.XCreateColormap(display, defaultRootWindow, visualInfo.visual, CreateColormapOption.AllocNone);
return(new X11Graphics(display, defaultScreen, defaultRootWindow, visualInfo.visual, colorMap, pictFormat, pictFormatPtr));
}
public static X11Clipboard Create()
{
IntPtr display = IntPtr.Zero;
ulong windowId = 0;
try
{
display = LibX11.XOpenDisplay(null);
if (display == IntPtr.Zero)
{
throw new InvalidOperationException("Cannot open display.");
}
ulong rootWindow = LibX11.XDefaultRootWindow(display);
int defaultScreen = LibX11.XDefaultScreen(display);
IntPtr defaultVisual = LibX11.XDefaultVisual(display, defaultScreen);
XSetWindowAttributes attr = new XSetWindowAttributes();
windowId = LibX11.XCreateWindow
(
display,
rootWindow,
0, 0,
10, 10,
0,
0,
WindowClass.InputOnly,
defaultVisual,
0,
ref attr
);
LibX11.XFlush(display);
X11Clipboard clipboard = new X11Clipboard(display, windowId);
clipboard.Start();
windowId = 0;
display = IntPtr.Zero;
return(clipboard);
}
finally
{
if (windowId != 0)
{
LibX11.XDestroyWindow(display, windowId);
LibX11.XFlush(display);
}
if (display != IntPtr.Zero)
{
LibX11.XCloseDisplay(display);
}
}
}