public BufferedPaintHandle(IWin32Window wnd, SafeDCHandle hdc, Rectangle targetRectangle,
BP_ANIMATIONPARAMS?animationParams = null,
BP_PAINTPARAMS paintParams = null, BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB)
: base(IntPtr.Zero, true)
{
RECT rc = targetRectangle;
var ap = animationParams ?? BP_ANIMATIONPARAMS.Empty;
IntPtr hdcFrom, hdcTo;
var hbp = BeginBufferedAnimation(new HandleRef(wnd, wnd.Handle), hdc, ref rc, fmt, paintParams, ref ap, out hdcFrom,
out hdcTo);
if (hbp == IntPtr.Zero)
{
throw new Win32Exception();
}
if (hdcFrom != IntPtr.Zero)
{
SourceGraphics = Graphics.FromHdc(hdcFrom);
}
if (hdcTo != IntPtr.Zero)
{
Graphics = Graphics.FromHdc(hdcTo);
}
SetHandle(hbp);
ani = true;
}
public static extern IntPtr BeginBufferedAnimation(
IntPtr hwnd,
IntPtr hdcTarget,
ref Rectangle rcTarget,
BP_BUFFERFORMAT dwFormat,
IntPtr pPaintParams,
ref BP_ANIMATIONPARAMS pAnimationParams,
out IntPtr phdcFrom,
out IntPtr phdcTo
);
/// <summary>Initializes a new instance of the <see cref="BufferedPainter"/> class and begins a buffered paint operation.</summary>
/// <param name="hdc">The handle of the target DC on which the buffer will be painted.</param>
/// <param name="targetRectangle">Specifies the area of the target DC in which to paint.</param>
/// <param name="paintParams">The paint operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="fmt">The format of the buffer.</param>
/// <exception cref="Win32Exception">Buffered painting could not initialize.</exception>
public BufferedPainter(SafeDCHandle hdc, Rectangle targetRectangle, BP_PAINTPARAMS paintParams = null,
BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB)
{
RECT target = targetRectangle;
hbp = BeginBufferedPaint(hdc, ref target, fmt, paintParams, out IntPtr phdc);
if (hbp.IsInvalid)
{
throw new Win32Exception();
}
if (phdc != IntPtr.Zero)
{
Graphics = Graphics.FromHdc(phdc);
}
}
/// <summary>Initializes a new instance of the <see cref="BufferedPainter"/> class and begins a buffered paint operation.</summary>
/// <param name="hdc">The handle of the target DC on which the buffer will be painted.</param>
/// <param name="targetRectangle">Specifies the area of the target DC in which to paint.</param>
/// <param name="paintParams">The paint operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="fmt">The format of the buffer.</param>
/// <exception cref="Win32Exception">Buffered painting could not initialize.</exception>
public BufferedPainter(HDC hdc, Rectangle targetRectangle, BP_PAINTPARAMS paintParams = null,
BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB)
{
RECT target = targetRectangle;
hbp = BeginBufferedPaint(hdc, target, fmt, paintParams, out var phdc);
if (hbp.IsInvalid)
{
throw new Win32Exception();
}
if (!phdc.IsNull)
{
Graphics = Graphics.FromHdc((IntPtr)phdc);
}
}
public BufferedPaintHandle(SafeDCHandle hdc, Rectangle targetRectangle, BP_PAINTPARAMS paintParams = null,
BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB) : base(IntPtr.Zero, true)
{
RECT target = targetRectangle;
IntPtr phdc;
var hbp = BeginBufferedPaint(hdc, ref target, fmt, paintParams, out phdc);
if (hbp == IntPtr.Zero)
{
throw new Win32Exception();
}
if (phdc != IntPtr.Zero)
{
Graphics = Graphics.FromHdc(phdc);
}
SetHandle(hbp);
}
/// <summary>
/// Initializes a new instance of the <see cref="BufferedPainter"/> class and begins a buffered animation operation. The animation consists of a
/// cross-fade between the contents of two buffers over a specified period of time.
/// </summary>
/// <param name="wnd">The window in which the animations play.</param>
/// <param name="hdc">A handle of the target DC on which the buffer is animated.</param>
/// <param name="targetRectangle">Specifies the area of the target DC in which to draw.</param>
/// <param name="animationParams">A structure that defines the animation operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="paintParams">A class that defines the paint operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="fmt">The format of the buffer.</param>
/// <exception cref="Win32Exception">Buffered animation could not initialize.</exception>
public BufferedAnimationPainter(IWin32Window wnd, SafeDCHandle hdc, Rectangle targetRectangle, BP_ANIMATIONPARAMS?animationParams = null,
BP_PAINTPARAMS paintParams = null, BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB)
{
RECT rc = targetRectangle;
var ap = animationParams ?? BP_ANIMATIONPARAMS.Empty;
hba = BeginBufferedAnimation(new HandleRef(wnd, wnd.Handle), hdc, ref rc, fmt, paintParams, ref ap, out IntPtr hdcFrom, out IntPtr hdcTo);
if (hba.IsInvalid)
{
throw new Win32Exception();
}
if (hdcFrom != IntPtr.Zero)
{
SourceGraphics = Graphics.FromHdc(hdcFrom);
}
if (hdcTo != IntPtr.Zero)
{
DestinationGraphics = Graphics.FromHdc(hdcTo);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BufferedPainter"/> class and begins a buffered animation operation. The animation consists of a
/// cross-fade between the contents of two buffers over a specified period of time.
/// </summary>
/// <param name="wnd">The window in which the animations play.</param>
/// <param name="hdc">A handle of the target DC on which the buffer is animated.</param>
/// <param name="targetRectangle">Specifies the area of the target DC in which to draw.</param>
/// <param name="animationParams">A structure that defines the animation operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="paintParams">A class that defines the paint operation parameters. This value can be <see langword="null"/>.</param>
/// <param name="fmt">The format of the buffer.</param>
/// <exception cref="Win32Exception">Buffered animation could not initialize.</exception>
public BufferedAnimationPainter(IWin32Window wnd, HDC hdc, Rectangle targetRectangle, BP_ANIMATIONPARAMS?animationParams = null,
BP_PAINTPARAMS paintParams = null, BP_BUFFERFORMAT fmt = BP_BUFFERFORMAT.BPBF_TOPDOWNDIB)
{
RECT rc = targetRectangle;
var ap = animationParams ?? BP_ANIMATIONPARAMS.Empty;
hba = BeginBufferedAnimation(wnd.Handle, hdc, rc, fmt, paintParams, ap, out var hdcFrom, out var hdcTo);
if (hba.IsInvalid)
{
throw new Win32Exception();
}
if (!hdcFrom.IsNull)
{
SourceGraphics = Graphics.FromHdc((IntPtr)hdcFrom);
}
if (!hdcTo.IsNull)
{
DestinationGraphics = Graphics.FromHdc((IntPtr)hdcTo);
}
}
public static extern IntPtr BeginBufferedAnimation([NativeTypeName("HWND")] IntPtr hwnd, [NativeTypeName("HDC")] IntPtr hdcTarget, [NativeTypeName("const RECT *")] RECT *prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams, BP_ANIMATIONPARAMS *pAnimationParams, [NativeTypeName("HDC *")] IntPtr *phdcFrom, [NativeTypeName("HDC *")] IntPtr *phdcTo);
public static extern IntPtr BeginBufferedPaint([NativeTypeName("HDC")] IntPtr hdcTarget, [NativeTypeName("const RECT *")] RECT *prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams, [NativeTypeName("HDC *")] IntPtr *phdc);
public static extern IntPtr BeginBufferedPaint(IntPtr hdc, ref RECT prcTarget, BP_BUFFERFORMAT dwFormat, IntPtr pPaintParams, out IntPtr phdc);
public static extern IntPtr BeginBufferedPaint(IntPtr hdc, ref RECT prcTarget, BP_BUFFERFORMAT dwFormat,
ref BP_PAINTPARAMS pPaintParams, out IntPtr phdc);
public static extern IntPtr BeginBufferedPaint(IntPtr hdcTarget, [In] ref Rectangle prcTarget, BP_BUFFERFORMAT dwFormat, [In] ref BP_PAINTPARAMS pPaintParams, out IntPtr phdc);
public static extern SafeBufferedPaintHandle BeginBufferedPaint(SafeDCHandle hdcTarget, [In] ref RECT prcTarget, BP_BUFFERFORMAT dwFormat, [In] BP_PAINTPARAMS pPaintParams, out IntPtr phdc);
public static extern SafeBufferedAnimationHandle BeginBufferedAnimation(HandleRef hwnd, SafeDCHandle hdcTarget, [In] ref RECT rcTarget, BP_BUFFERFORMAT dwFormat,
[In] BP_PAINTPARAMS pPaintParams, [In] ref BP_ANIMATIONPARAMS pAnimationParams, out IntPtr phdcFrom, out IntPtr phdcTo);
public static extern HANIMATIONBUFFER BeginBufferedAnimation(HWND hwnd, HDC hdcTarget, [NativeTypeName("const RECT *")] RECT *prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams, BP_ANIMATIONPARAMS *pAnimationParams, HDC *phdcFrom, HDC *phdcTo);
public static extern HPAINTBUFFER BeginBufferedPaint(HDC hdcTarget, [NativeTypeName("const RECT *")] RECT *prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams, HDC *phdc);
