func createBitmap() *drawing.Bitmap {
bounds := drawing.Rectangle{Width: 200, Height: 200}
bmp, err := drawing.NewBitmap(bounds.Size())
panicIfErr(err)
surface, err := drawing.NewSurfaceFromImage(bmp)
panicIfErr(err)
defer surface.Dispose()
brushBmp, err := drawing.NewBitmapFromFile("img/plus.png")
panicIfErr(err)
defer brushBmp.Dispose()
brush, err := drawing.NewBitmapBrush(brushBmp)
panicIfErr(err)
defer brush.Dispose()
panicIfErr(surface.FillRectangle(brush, bounds))
font, err := drawing.NewFont("Times New Roman", 40, drawing.FontBold|drawing.FontItalic)
panicIfErr(err)
defer font.Dispose()
panicIfErr(surface.DrawText("Runtime Created Bitmap", font, drawing.RGB(0, 0, 0), bounds, drawing.TextWordbreak))
return bmp
}
