// Methods handled by this control itself; called by the operating system.
// In many cases, when one of the following methods is called by the
// operating system, the method will call a corrsponding method to invoke
// event handlers set by the client of this control.
protected override void OnPaint(PaintEventArgs e)
{
// If in designer mode, then just fill the area with the BackColor color.
if ((DesignMode) || (false == mAttemptedInitialization))
{
e.Graphics.Clear(BackColor);
if (DesignMode)
{
return;
}
}
if (false == mAttemptedInitialization)
{
mAttemptedInitialization = true;
fGLContext = new GLContext(Handle, PFDFlags.DoubleBuffer);
mGR = new GraphicsInterface(fGLContext);
fGLContext.MakeCurrentContext();
// Set some default drawing conditions
mGR.ClearColor(BackColor.R / 255.0f, BackColor.G / 255.0f, BackColor.B / 255.0f, 1.0f);
InvokeOpenGLStarted();
base.OnPaint(e); // Triggers Paint *event*; thus, our override gets called before the event
return;
}
// Set some default drawing conditions
mGR.ClearColor(BackColor.R / 255.0f, BackColor.G / 255.0f, BackColor.B / 255.0f, 1.0f);
fGLContext.MakeCurrentContext();
base.OnPaint(e); // Triggers Paint *event*; thus, our override gets called before the event
}
