public static OffsetImage LoadImage(
string fullFileName
, int startx, int starty
, int width, int height
)
{
float scale = 1;
Image raw = new Bitmap(fullFileName);
if (width == 0)
{
width = raw.Width;
}
if (height == 0)
{
height = raw.Height;
}
int rltwidth = Convert.ToInt32(Math.Ceiling(width * scale));
int rltheight = Convert.ToInt32(Math.Ceiling(height * scale));
Bitmap rlt = new Bitmap(rltwidth, rltheight);
Graphics g = Graphics.FromImage(rlt);
PointF ul = new PointF(0, 0);
PointF ur = new PointF(rltwidth, 0);
PointF ll = new PointF(0, rltheight);
PointF[] imgscale = new PointF[] { ul, ur, ll };
Rectangle portion = new Rectangle(startx, starty, width, height);
g.DrawImage(raw, imgscale, portion, GraphicsUnit.Pixel);
g.Dispose();
OffsetImage oi = OffsetImage.New(rlt);
return(oi);
}
public RenderForm()
{
int num = Math.Max(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
BufferSize = new Size(num, num);
Portion = new Rectangle(0, 0, Width, Height);
BufferImage = OffsetImage.New(new Bitmap(BufferSize.Width, BufferSize.Height));
UpdatePortion(00, 00, Width, Height);
Load += new EventHandler(MainForm_Load);
Paint += new PaintEventHandler(MainForm_Paint);
Resize += new EventHandler(MainForm_Resize);
KeyDown += new KeyEventHandler(RenderForm_KeyDown);
KeyUp += new KeyEventHandler(RenderForm_KeyUp);
MouseMove += new MouseEventHandler(RenderForm_MouseMove);
MouseDown += new MouseEventHandler(RenderForm_MouseDown);
MouseUp += new MouseEventHandler(RenderForm_MouseUp);
MouseDoubleClick += new MouseEventHandler(RenderForm_MouseDoubleClick);
}
