_GRAPHICSBASE

Setup methods

These methods deal with setting colours, fonts, brushes, and internal styles.

Lines and similar

These methods deal with drawing lines, boxes, rectangles, circles, and any other simply shape.

Text

These methods deal with writing text, as well as changing the font styles, the colour, and some other associated properties for this text.

Bitmap methods

These methods deal with drawing bitmaps in various ways and styles.

Inheritance methods

These methods are the methods that you will be using should you inherit this class into another class. Pay attention now, or else your class won't work!

Sample Code

The following snippet gives a basic idea of how to use this component.

//Let's do some basic things.
//Like a rectangle, with black outline, red fill.
Graphics.StartDrawing(); //Not required, but good practise.

Graphics.SetBrush(gbsSolid, 0, RGB(255,0,0)); //The fill.
Graphics.SetPen(gpsSolid, RGB(0,0,0)); //The outline.

Graphics.FillRectangle(10,10,100,100);

//Maybe some text...
Graphics.SetFont(&Font);
Graphics.SetTextColour(RGB(0,255,0)); //Green text.
Graphics.MakeBackgroundTransparent(TRUE); //Transparent text.

Graphics.Text(10,10, "Hello there!!");

Graphics.FormatText("Hello there!!", 10,50, 100,20, gtsOneLine);
Graphics.FormatText("Hello there!!\nThis is cool!", 10,70, 100,40, gtsBreakLines);

//And when you are done (but only required if you called StartDrawing())
Graphics.StopDrawing();

The following code shows an example of how to inherit this class in one of your own functions. In this example, the code for the fSCREENGRAPHICS class is shown.

//Include nessecary headers...
#include "graphics_base.h"

class fSCREENGRAPHICS : public _GRAPHICSBASE {
      private:
              HWND FormHandle;

      public:
             //You must replace these functions with
             //however you need to get your HDC.
             void Internal_GrabDC(void)     { HandleDC = GetDC(FormHandle);                  };
             void Internal_ReleaseDC(void)  { ReleaseDC(FormHandle, HandleDC); HandleDC = 0; };

             //These functions are extra to this class.
             void Setup(HWND Handle)       { FormHandle = Handle;                  };
             void ValidateWindow(void)     { ValidateRect(FormHandle, NULL);       };

             //Now, one last note. If you write your own graphics function, you might
             //like to do this:
             void Line(...) 
                  {
                  Int_ChkRdy();
                  Graphics_Line(HDC, ...);
                  Int_ChkAft();
                  };
             //The functions Int_ChkRdy() and Int_ChkAft() check whether or not you
             //have a valid HDC ready. If not, it will get one or destroy one as required.
             //This means that you can either call the function after StartDrawing() or
             //just call it by itself. It's up to you.

};