C# (CSharp) System.Windows.Forms.Internal DeviceContext.Dispose Examples

Example #1

        internal void Dispose(bool disposing)
        {
            if (dc != null)
            {
                DbgUtil.AssertFinalization(this, disposing);

                try
                {
                    // Restore original dc.
                    dc.RestoreHdc();

                    if (disposeDc)
                    {
                        dc.Dispose(disposing);
                    }

                    if (graphics != null)    // if created from a Graphics object...
                    {
                        graphics.ReleaseHdcInternal(dc.Hdc);
                        graphics = null;
                    }
                }
                catch (Exception ex)
                {
                    if (ClientUtils.IsSecurityOrCriticalException(ex))
                    {
                        throw; // rethrow the original exception.
                    }
                    Debug.Fail("Exception thrown during disposing: \r\n" + ex.ToString());
                }
                finally
                {
                    dc = null;
                }
            }
        }