Dot Net下实现屏幕图像差异获取v2.0

初始化所有分块的数据
///
 
<summary>


///
 初始化所有分块的数据

///
 
</summary>


public
 
void
 InitializeBlocks()
{
    
int
 top 
=
 
0
;
    
int
 left 
=
 
0
;

    _blocks 
=
 
new
 List
<
Bitmap
>
(_blocksInColumn 
*
 _blocksInRow);
    _isSupposedChanged 
=
 
new
 List
<
bool
>
(_blocks.Capacity);
    _isScanned 
=
 
new
 List
<
bool
>
(_blocks.Capacity);

    _blockWidth 
=
 (_oldBmp.Width 
+
 _blocksInRow 
–
 
1
) 
/
 _blocksInRow;
    _blockHeight 
=
 (_oldBmp.Height 
+
 _blocksInColumn 
–
 
1
) 
/
 _blocksInColumn;

    
for
 (
int
 i 
=
 
1
; i 
<=
 _blocks.Capacity; i
++
)
    {
        top 
=
 ((i 
+
 _blocksInRow 
–
 
1
) 
/
 _blocksInRow) 
–
 
1
;
        left 
=
 i 
–
 _blocksInRow 
*
 top 
–
 
1
;

        _blocks.Add(_oldBmp.Clone(
new
 Rectangle(left 
*
 _blockWidth, top 
*
 _blockHeight, _blockWidth, _blockHeight), _oldBmp.PixelFormat));
        
if
 (i 
<=
 _blocksInRow 
||
 _blocks.Capacity 
–
 i 
–
 
1
 
<
 _blocksInRow)
        {
            _isSupposedChanged.Add(
true
);
        }
        
else

        {
            _isSupposedChanged.Add(
false
);
        }
        _isScanned.Add(
false
);
    }
}