public static RenderingContext FromBitmapInfo(
BitmapInfo bitmapInfo,
PixelFormatDescriptor pfd,
out IntPtr bitmapHandle)
{
IntPtr dc = WGL.GetDC(IntPtr.Zero);
IntPtr compatibleDc = WGL.CreateCompatibleDC(dc);
WGL.ReleaseDC(IntPtr.Zero, dc);
IntPtr ppvBits;
bitmapHandle = WGL.CreateDIBSection(compatibleDc, ref bitmapInfo, DIBDataType.RgbColors, out ppvBits, IntPtr.Zero, 0U);
if (bitmapHandle == IntPtr.Zero)
{
throw new InternalException("Error in CreateDIBSection", (Exception) new Win32Exception(Marshal.GetLastWin32Error()));
}
if (WGL.SelectObject(compatibleDc, bitmapHandle) == IntPtr.Zero)
{
throw new InternalException("SelectObject failed");
}
int pixelFormatIndex = RenderingContext.smethod_0(compatibleDc, pfd);
IntPtr context = WGL.wglCreateContext(compatibleDc);
if (context == IntPtr.Zero)
{
throw new InternalException("Error in wglCreateContext", (Exception) new Win32Exception(Marshal.GetLastWin32Error()));
}
return(new RenderingContext(IntPtr.Zero, compatibleDc, true, context, pixelFormatIndex));
}