【实例简介】C/C 、C#、PHP相机开发实例 大恒相机SDK

【实例截图】

【核心代码】

public  class GxBitmap

{

IGXDevice      m_objIGXDevice    = null;                ///

PictureBox     m_pic_ShowImage   = null;                ///

bool           m_bIsColor        = false;               ///

byte[]         m_byMonoBuffer    = null;                ///

byte[]         m_byColorBuffer   = null;                ///

byte[]         m_byRawBuffer     = null;                ///

int            m_nPayloadSize    = 0;                   ///

int            m_nWidth          = 0;                   ///

int            m_nHeigh          = 0;                   ///

Bitmap         m_bitmapForSave   = null;                ///

const uint     PIXEL_FORMATE_BIT = 0x00FF0000;          ///

const uint     GX_PIXEL_8BIT     = 0x00080000;          ///<8位数据图像格式

///

const int      COLORONCOLOR      = 3;

const uint     DIB_RGB_COLORS    = 0;

const uint     SRCCOPY           = 0x00CC0020;

CWin32Bitmaps.BITMAPINFO m_objBitmapInfo = new CWin32Bitmaps.BITMAPINFO();

IntPtr m_pBitmapInfo = IntPtr.Zero;

Graphics m_objGC = null;

IntPtr m_pHDC = IntPtr.Zero;

///

/// 构造函数用于初始化设备对象与PictureBox控件对象

///

/// 设备对象

/// 图像显示控件

public GxBitmap(IGXDevice objIGXDevice, PictureBox objPictureBox)

{

m_objIGXDevice = objIGXDevice;

m_pic_ShowImage = objPictureBox;

string strValue = null;

if (null != objIGXDevice)

{

//获得图像原始数据大小、宽度、高度等

m_nPayloadSize = (int)objIGXDevice.GetRemoteFeatureControl().GetIntFeature("PayloadSize").GetValue();

m_nWidth = (int)objIGXDevice.GetRemoteFeatureControl().GetIntFeature("Width").GetValue();

m_nHeigh = (int)objIGXDevice.GetRemoteFeatureControl().GetIntFeature("Height").GetValue();

//获取是否为彩色相机

if (objIGXDevice.GetRemoteFeatureControl().IsImplemented("PixelColorFilter"))

{

strValue = objIGXDevice.GetRemoteFeatureControl().GetEnumFeature("PixelColorFilter").GetValue();

if ("None" != strValue)

{

m_bIsColor = true;

}

}

}

//申请用于缓存图像数据的buffer

m_byRawBuffer = new byte[m_nPayloadSize];

m_byMonoBuffer = new byte[__GetStride(m_nWidth, m_bIsColor) * m_nHeigh];

m_byColorBuffer = new byte[__GetStride(m_nWidth, m_bIsColor) * m_nHeigh];

__CreateBitmap(out m_bitmapForSave, m_nWidth, m_nHeigh, m_bIsColor);

m_objGC = m_pic_ShowImage.CreateGraphics();

m_pHDC = m_objGC.GetHdc();

if (m_bIsColor)

{

m_objBitmapInfo.bmiHeader.biSize = (uint)Marshal.SizeOf(typeof(CWin32Bitmaps.BITMAPINFOHEADER));

m_objBitmapInfo.bmiHeader.biWidth = m_nWidth;

m_objBitmapInfo.bmiHeader.biHeight = -m_nHeigh;

m_objBitmapInfo.bmiHeader.biPlanes = 1;

m_objBitmapInfo.bmiHeader.biBitCount = 24;

m_objBitmapInfo.bmiHeader.biCompression = 0;

m_objBitmapInfo.bmiHeader.biSizeImage = 0;

m_objBitmapInfo.bmiHeader.biXPelsPerMeter = 0;

m_objBitmapInfo.bmiHeader.biYPelsPerMeter = 0;

m_objBitmapInfo.bmiHeader.biClrUsed = 0;

m_objBitmapInfo.bmiHeader.biClrImportant = 0;

}

else

{

m_objBitmapInfo.bmiHeader.biSize = (uint)Marshal.SizeOf(typeof(CWin32Bitmaps.BITMAPINFOHEADER));

m_objBitmapInfo.bmiHeader.biWidth = m_nWidth;

m_objBitmapInfo.bmiHeader.biHeight = -m_nHeigh;

m_objBitmapInfo.bmiHeader.biPlanes = 1;

m_objBitmapInfo.bmiHeader.biBitCount = 8;

m_objBitmapInfo.bmiHeader.biCompression = 0;

m_objBitmapInfo.bmiHeader.biSizeImage = 0;

m_objBitmapInfo.bmiHeader.biXPelsPerMeter = 0;

m_objBitmapInfo.bmiHeader.biYPelsPerMeter = 0;

m_objBitmapInfo.bmiHeader.biClrUsed = 0;

m_objBitmapInfo.bmiHeader.biClrImportant = 0;

m_objBitmapInfo.bmiColors = new CWin32Bitmaps.RGBQUAD[256];

// 黑白图像需要初始化调色板

for (int i = 0; i < 256; i )

{

m_objBitmapInfo.bmiColors[i].rgbBlue     = (byte)i;

m_objBitmapInfo.bmiColors[i].rgbGreen    = (byte)i;

m_objBitmapInfo.bmiColors[i].rgbRed      = (byte)i;

m_objBitmapInfo.bmiColors[i].rgbReserved = (byte)i;

}

}

m_pBitmapInfo = Marshal.AllocHGlobal(2048);

Marshal.StructureToPtr(m_objBitmapInfo, m_pBitmapInfo, false);

}