public static void Paint <TState, TParam>(Graphics graphics, Rectangle bounds, PaintAction <TState, TParam> paintAction,
TState currentState, TParam data)
{
using (var g = new SafeDCHandle(graphics))
using (var bp = new BufferedPaintHandle(g, bounds))
paintAction(bp.Graphics, bounds, currentState, data);
}
public static void Paint <TState, TParam>(Graphics g, IWin32Window w, Rectangle rc, PaintAction <TState, TParam> f, TState currentState, TState newState, uint duration, TParam optParam)
{
try
{
if (System.Environment.OSVersion.Version.Major >= 6 && NativeMethods.BufferedPaintInit() == IntPtr.Zero)
{
using (var hdc = new SafeGDIHandle(g))
{
if (!hdc.IsInvalid)
{
// see if this paint was generated by a soft-fade animation
if (!NativeMethods.BufferedPaintRenderAnimation(w.Handle, hdc))
{
NativeMethods.BufferedPaintAnimationParams animParams = new NativeMethods.BufferedPaintAnimationParams {
Duration = duration
};
IntPtr hdcFrom, hdcTo;
using (var h = new BufferedPaintHandle(w.Handle, hdc, ref rc, ref animParams, out hdcFrom, out hdcTo))
{
if (!h.IsInvalid)
{
if (hdcFrom != IntPtr.Zero)
{
using (Graphics gfxFrom = Graphics.FromHdc(hdcFrom))
f(gfxFrom, rc, currentState, optParam);
}
if (hdcTo != IntPtr.Zero)
{
using (Graphics gfxTo = Graphics.FromHdc(hdcTo))
f(gfxTo, rc, newState, optParam);
}
}
else
{
hdc.Dispose();
f(g, rc, newState, optParam);
}
}
}
}
}
NativeMethods.BufferedPaintUnInit();
}
else
{
f(g, rc, newState, optParam);
}
}
catch { }
}
public static void PaintAnimation <TState, TParam>(Graphics graphics, IWin32Window ctrl, Rectangle bounds,
PaintAction <TState, TParam> paintAction, TState currentState, TState newState, int duration, TParam data)
{
try
{
if (System.Environment.OSVersion.Version.Major >= 6)
{
using (var hdc = new SafeDCHandle(graphics))
{
if (hdc.IsInvalid)
{
goto defPaint;
}
// see if this paint was generated by a soft-fade animation
if (BufferedPaintRenderAnimation(new HandleRef(ctrl, ctrl.Handle), hdc))
{
return;
}
using (var h = new BufferedPaintHandle(ctrl, hdc, bounds, new BufferedPaintAnimationParams(duration)))
{
if (!h.IsInvalid)
{
if (h.SourceGraphics != null)
{
paintAction(h.SourceGraphics, bounds, currentState, data);
}
if (h.Graphics != null)
{
paintAction(h.Graphics, bounds, newState, data);
}
}
else
{
goto defPaint;
}
}
}
return;
}
defPaint:
paintAction(graphics, bounds, newState, data);
}
catch { }
}