protected bool OnPaint(IntPtr hWnd)
{
var ps = new Win32.PAINTSTRUCT();
if (OffScreenGraphics == null)
return false;
var hdc = Win32.BeginPaint(hWnd, ref ps);
var hdcMem = OffScreenGraphics.GetHdc();
try
{
using (Gdi g = Gdi.FromHdc(hdc, ps.rcPaint))
{
using (Gdi gMem = Gdi.FromHdc(hdcMem, Rectangle.Empty))
{
Rectangle rect = ps.rcPaint;
try
{
DrawScreenOn(gMem, rect, _currentScrollPosition);
}
catch (COMException ex)
{
throw;
}
catch (Exception)
{
throw;
}
g.BitBlt(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top, gMem, rect.Left, rect.Top,
TernaryRasterOperations.SRCCOPY);
}
}
}
finally
{
OffScreenGraphics.ReleaseHdc(hdcMem);
Win32.EndPaint(hWnd, ref ps);
}
return true;
}
bool OnPaint(IntPtr hWnd)
{
if (CurrentTransition == null)
return false;
var ps = new Win32.PAINTSTRUCT();
IntPtr hdc = Win32.BeginPaint(hWnd, ref ps);
IntPtr hdcMem = _offScreenGraphics.GetHdc();
using (Gdi g = Gdi.FromHdc(hdc, ps.rcPaint))
{
using (Gdi gMem = Gdi.FromHdc(hdcMem, Rectangle.Empty))
{
Rectangle rect = ps.rcPaint;
try
{
CurrentTransition.DrawScreenOn(gMem, ps.rcPaint);
}
catch (Exception)
{
throw;
}
g.BitBlt(rect.Left, rect.Top, rect.Width, rect.Height, hdcMem, rect.Left, rect.Top,
TernaryRasterOperations.SRCCOPY);
}
}
_offScreenGraphics.ReleaseHdc(hdcMem);
Win32.EndPaint(hWnd, ref ps);
return true;
}