Mega Code Archive

 

Categories / Visual C++ .NET / 2D Graphics

 

Correcting Coordinates

[STAThreadAttribute] int main(array<System::String ^> ^args) {   Application::Run(gcnew Form1());   return 0; }   using namespace System;   using namespace System::ComponentModel;   using namespace System::Collections;   using namespace System::Windows::Forms;   using namespace System::Data;   using namespace System::Drawing;   public ref class Form1 : public System::Windows::Forms::Form   {   public:     Form1(void)     {       InitializeComponent();             coords = gcnew ArrayList();  // Instantiate coords array     }         ArrayList ^coords;     void InitializeComponent(void)     {             this->SuspendLayout();             this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);             this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;             this->ClientSize = System::Drawing::Size(292, 273);             this->Name = L"Form1";             this->Text = L"Click and see coords";             this->Paint +=                  gcnew System::Windows::Forms::PaintEventHandler(this,                                                            &Form1::Form1_Paint);             this->MouseDown +=                  gcnew System::Windows::Forms::MouseEventHandler(this,                                                        &Form1::Form1_MouseDown);             this->ResumeLayout(false);     }         System::Void Form1_MouseDown(System::Object^ sender,                                       System::Windows::Forms::MouseEventArgs^ e)         {             coords->Add(Point(e->X, e->Y));             Invalidate();         }         System::Void Form1_Paint(System::Object^ sender,                                   System::Windows::Forms::PaintEventArgs^ e)         {             for each (Point^ p in coords)             {                  e->Graphics->DrawString(String::Format("({0},{1})",p->X,p->Y),                     gcnew Drawing::Font("Courier New", 8),                     Brushes::Black, (Single)p->X, (Single)p->Y);             }         }   };