/// <summary>
/// 用窗口句柄初始化
/// </summary>
/// <param name="hwnd">绘制窗口句柄</param>
public DirectXEngine(Control ctrl)
{
_ctrl = ctrl;
_cancelTask = new CancellationTokenSource();
InitHwndRenderTarget();
_bmp = new DXBitmap(hwndRenderTarget);
}
public void ChangeBitmap(Stream s)
{
lock (_lockObj)
{
_preBmp = _bmp; //当前图片变成前一张图片
_bmp = new DXBitmap(hwndRenderTarget, s); //新图片赋值给当前图片
_opacity = 1f; //
}
}
public void ChangeBitmap(string imageFileName)
{
if (string.IsNullOrWhiteSpace(imageFileName))
{
throw new ArgumentException(imageFileName);
}
if (!File.Exists(imageFileName))
{
throw new FileNotFoundException(imageFileName);
}
lock (_lockObj)
{
_preBmp = _bmp; //当前图片变成前一张图片
_bmp = new DXBitmap(hwndRenderTarget, imageFileName); //新图片赋值给当前图片
_opacity = 1f; //
}
}
// Dispose(bool disposing) executes in two distinct scenarios.
// If disposing equals true, the method has been called directly
// or indirectly by a user's code. Managed and unmanaged resources
// can be disposed.
// If disposing equals false, the method has been called by the
// runtime from inside the finalizer and you should not reference
// other objects. Only unmanaged resources can be disposed.
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this.disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
// Dispose managed resources.
if (hwndRenderTarget != null)
{
hwndRenderTarget.Dispose();
hwndRenderTarget = null;
}
if (_preBmp != null)
{
_preBmp.Dispose();
_preBmp = null;
}
if (_bmp != null)
{
_bmp.Dispose();
_bmp = null;
}
}
// Call the appropriate methods to clean up
// unmanaged resources here.
// If disposing is false,
// only the following code is executed.
// Note disposing has been done.
disposed = true;
}
}
