To use OpenGL in Delphi, you will need to have the OpenGL libraries installed on your system. You can then use the OpenGL unit (part of the standard Delphi library) to access the OpenGL functions in your Delphi code.
Here is an example of how to use OpenGL in Delphi to draw a simple triangle:
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uses OpenGL; procedure TForm1.FormCreate(Sender: TObject); begin // Set up the OpenGL context InitOpenGL; end; procedure TForm1.FormPaint(Sender: TObject); begin // Clear the color buffer glClear(GL_COLOR_BUFFER_BIT); // Set the current drawing color to red glColor3f(1.0, 0.0, 0.0); // Draw a triangle glBegin(GL_TRIANGLES); glVertex3f(–0.5, –0.5, 0.0); glVertex3f( 0.5, –0.5, 0.0); glVertex3f( 0.0, 0.5, 0.0); glEnd; // Swap the back and front buffers SwapBuffers(hDC); end; |
This example assumes that you have a form with an OnCreate event handler and an OnPaint event handler, and that you have called the InitOpenGL function to set up the OpenGL context. The InitOpenGL function should set up the pixel format for the form and create a rendering context using the wglCreateContext function.
To learn more about using OpenGL in Delphi, you may want to refer to the Delphi documentation or look for online tutorials and examples.
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