public void Dispose()
{
lock (this.object_0)
{
if (!(this.intptr_2 != IntPtr.Zero))
{
return;
}
if (WGL.wglDeleteContext(this.intptr_2) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL DeleteContext call was not successful, error code: {0}", (object)lastWin32Error));
}
this.intptr_2 = IntPtr.Zero;
if (this.bool_0)
{
if (WGL.DeleteDC(this.intptr_1) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL DeleteDC call was not successful, error code: {0}", (object)lastWin32Error));
}
}
else if (WGL.ReleaseDC(this.intptr_0, this.intptr_1) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL ReleaseDC call was not successful, error code: {0}", (object)lastWin32Error));
}
this.intptr_0 = IntPtr.Zero;
this.intptr_1 = IntPtr.Zero;
this.int_0 = 0;
}
}
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));
}