[求助]转换代码 - 专家坐堂 - Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

如何将下面代码转换成狐表的代码，谢谢

//---------------------------------------------------------------------------
FORCEINLINE
INT CheckValue(INT value)
{
return (value & ~0xff) == 0? value : value > 255? 255 : 0;
}
//---------------------------------------------------------------------------
// 线性亮度/对比度调整
VOID LineBrightAndContrast(BitmapData *data, INT bright, INT contrast, BYTE threshold)
{
if (bright == 0 && contrast == 0)
return;
FLOAT bv = bright <= -255? -1.0f : bright / 255.0f;
if (bright > 0 && bright < 255)
bv = 1.0f / (1.0f - bv) - 1.0f;
FLOAT cv = contrast <= -255? -1.0f : contrast / 255.0f;
if (contrast > 0 && contrast < 255)
cv = 1.0f / (1.0f - cv) - 1.0f;
BYTE values[256];
for (INT i = 0; i < 256; i ++)
{
INT v = contrast > 0? CheckValue(i + (INT)(i * bv + 0.5f)) : i;
if (contrast >= 255)
v = v >= threshold? 255 : 0;
else
v = CheckValue(v + (INT)((v - threshold) * cv + 0.5f));
values[i] = contrast <= 0? CheckValue(v + (INT)(v * bv + 0.5f)) : v;
}
PARGBQuad p = (PARGBQuad)data->Scan0;
INT offset = data->Stride - data->Width * sizeof(ARGBQuad);
for (UINT y = 0; y < data->Height; y ++, (BYTE*)p += offset)
{
for (UINT x = 0; x < data->Width; x ++, p ++)
{
p->Blue = values[p->Blue];
p->Green = values[p->Green];
p->Red = values[p->Red];
}
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
Gdiplus::Bitmap *bmp = new Gdiplus::Bitmap(L"..\\..\\media\\source1.jpg");
Gdiplus::Graphics *g = new Gdiplus::Graphics(Canvas->Handle);
g->DrawImage(bmp, 0, 0);
BitmapData data;
LockBitmap(bmp, &data);
LineBrightAndContrast(&data, 20, 0, 121);
UnlockBitmap(bmp, &data);
g->DrawImage(bmp, data.Width, 0);
delete g;
delete bmp;
}
//---------------------------------------------------------------------------

主题：[求助]转换代码