C / C++ / MFC

    Gdiplus::Bitmap SrcBitmap(L"C:\\test.tif", FALSE);
    
    Graphics DstGraphics(*this);

    REAL angle = 0.0f;
    for (int i = 0; i < 1440; ++i)
    {
        DstGraphics.ResetTransform();
        DstGraphics.RotateTransform(angle);
        DstGraphics.TranslateTransform(SrcBitmap.GetWidth() / 2.0f, SrcBitmap.GetHeight() / 2.0f, MatrixOrderAppend);
        DstGraphics.DrawImage(&SrcBitmap, -((INT)SrcBitmap.GetWidth() / 2), -((INT)SrcBitmap.GetHeight() / 2), SrcBitmap.GetWidth(), SrcBitmap.GetHeight());

        angle += 0.5f;

        // Use this to slow it down :)
//        ::Sleep(10);
    }

Mark Salsbery
Microsoft MVP - Visual C++

TooShy2Talk wrote:

Like for example position the image corner at point (100,100).

Matrix matrix;
matrix.Translate(100.0f, 100.0f);
matrix.RotateAt(30.0f /*angle to rotate*/, PointF(100.0f, 100.0f), MatrixOrderAppend);
graphics.SetTransform(&matrix);
graphics.DrawImage(&img, PointF(0, 0));
graphics.ResetTransform();

jonsey29847 wrote:

...I need to read the serial port every 2 microseconds.

jonsey29847 wrote:

Yes...Windows.

class Object
{
  // ...
};
class User
{
  Object obj;
};

class User
{
  class Object;
  Object* pObj;
};
class User::Object
{
  // ...
};

George_George wrote:

whether the wrapped pointer member must be pointing to inner structs/classes? Or the pointer could be pointed to global/namespace level structs/classes?

class Object; // forward declaration.
class User
{
  Object* pObj;
  // ...
};
class Object
{
  // ...
};

VuNic wrote:

It may point to anything. Inner or outer, it's a bad practice. It's highly recommended not to use it.