问题[c++builder]

我有一个事件函数，当释放鼠标时调用，当两个形状叠加时，它们应该被“合并”，并且应该在这个地方创建另一个形状。

void __fastcall TForm1::ShapeMouseUp(TObject *Sender, TMouseButton Button, TShiftState Shift, int X, int Y)
{
    TShape* shape = dynamic_cast<TShape*>(Sender);
    if (shape) {
        shape->Tag = 0;
        if (!Panel1->BoundsRect.Contains(shape->BoundsRect)) {
            shape->Left = TagFloat; 
            shape->Top = TagFloat2;
        }
        else {
            // Проверяем наложение на другие квадраты
            for (int i = 0; i < Panel1->ControlCount; ++i) {
                TShape* otherShape = dynamic_cast<TShape*>(Panel1->Controls[i]);
                if (otherShape && otherShape != shape) {
                    if (shape->BoundsRect.IntersectsWith(otherShape->BoundsRect)) {
                        //Application->MessageBox(L"Условие выполнилось", L"Тест");
                
                        int left = std::max(shape->Left, otherShape->Left);
                        int top = std::max(shape->Top, otherShape->Top);
                        int right = std::min(shape->Left + shape->Width, otherShape->Left + otherShape->Width);
                        int bottom = std::min(shape->Top + shape->Height, otherShape->Top + otherShape->Height);

                        int intersectionWidth = right - left;
                        int intersectionHeight = bottom - top;

                        if (intersectionWidth > 0 && intersectionHeight > 0 && intersectionWidth * intersectionHeight > 0.5 * shape->Width * shape->Height) {
                            
                            TShape* newShape = new TShape(Panel1);
                            newShape->Parent = Panel1;
                            newShape->Width = shape->Width;
                            newShape->Height = shape->Height;
                            newShape->Left = shape->Left;
                            newShape->Top = shape->Top;
                            newShape->Shape = stEllipse;
                            newShape->Brush->Color = clRed;
                            newShape->OnMouseDown = ShapeMouseDown;
                            newShape->OnMouseMove = ShapeMouseMove;
                            newShape->OnMouseUp = ShapeMouseUp;

                            Panel1->RemoveControl(shape);
                            Panel1->RemoveControl(otherShape);
                            delete shape;
                            delete otherShape;
                            break;
                        }
                    }
                }
            }
        }
    }
}

但问题恰恰是条件不满足

您好，我正在使用 C++ 编程，Embarcadero® C++Builder 10.4 版本 27.0.37889.9797 我创建了自己的类，我想通过 .dll 实现它，我在 Windows 10 中编程，我想通过 .dll 调用我的类。 dll，我该如何实现呢？如果你举一个小例子来说明如何做到这一点，我将不胜感激！

我不知道用什么命令让程序计算一个数字的单位。

在 c++ builder 10.3 类中

class Matrix
{
    int **m;
    int r,s;
public:
    Matrix(){}
    Matrix(int st,int rd)
    {
        r = rd;
        s = st;
        *m = new int [s];
    for(int i=0; i<s; i++)
    {
        m[i] = new int [r];
        for(int j=0; j<r; j++)
        {
            m[i][j] = 0;
        }
    }

    }
    ~Matrix()
    {
        for(int i=0; i<s; i++)
        delete [] m[i];
        delete [] m;
    }
     void CreateMatrix(int st,int rd, int ch)
    {
        //m[st][rd] = ch;
    }

};

Matrix matr;
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm5 *Form5;
__fastcall TForm5::TForm5(TComponent* Owner)
    : TForm(Owner)
{
}
void __fastcall TForm5::Button1Click(TObject *Sender)
{
    if(Edit1->Text == "" || Edit2->Text == "") ShowMessage("Заповніть поля" );
    else
    {
        if(StrToInt(Edit2->Text)<1 || StrToInt(Edit1->Text)<1) ShowMessage("Розмір матриці повинен бути більше 0" );
        else
        {
            StringGrid1->Visible = true;
            StringGrid1->RowCount = StrToInt(Edit2->Text);
            StringGrid1->ColCount = StrToInt(Edit1->Text);
            Matrix matr(StrToInt(Edit1->Text),StrToInt(Edit2->Text));
        }
    }
}
void __fastcall TForm5::Button2Click(TObject *Sender)
{
    for(int i=0; i<StrToInt(Edit1->Text); i++)
    {
        for(int j=0; j<StrToInt(Edit2->Text); j++)
        {
              matr.CreateMatrix(i,j,StrToInt(StringGrid1->Cells[j][i] ));
        }
    }
}

是否可以直接在突出显示的小框中输入年份？这样您就不必使用窗口右侧的箭头。如果是，如何实施？