条码控件Barcode Xpress可 以处理1位黑白图像、8位灰度图像以及24位彩色图像。在Barcode Xpress中能够使用ColorDepth方法或是在Barcode Xpress组件中的其余的方法能够转换其他的图像格式,若是你使用的是ImageGear的话,那么直接使用ConvertColorSpace方法就 能够了。 spa
C++示例:使用Barcode Xpress导入图像 code
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//load a 1BPP, black and white image into the ImagXpress control
m_pImagXpress->FileName = “C:\\testbarcodeimage.tif”;
// Copy the hDib
long hDib = m_pImagXpress->CopyDIB();
// Analyze the barcode
m_pBarcodeXpress->AnalyzehDib(hDib);
// Free the hDib
GlobalFree(LongToHandle(hDib));
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VB示例:使用Barcode Xpress导入图像 orm
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' Load the image
ImagXpress1.FileName ="C:\testbarcodeimage.tif"
' Copy the hDib
hDib = ImagXpress1.CopyDIB
' Analyze the barcode
BarcodeXpress1.AnalyzehDib hDib
' Free the hDib
GlobalFree hDib
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C++示例:使用ImageGear导入图像 ci
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// Create an ImageGear page
GearCORELib::IIGPagePtr page;
page = g_pIGCore->CreatePage();
// Load the page from file
m_pIGFormats->LoadPageFromFile(page, fileName, 0);
// Export the page to a dib
GearCORELib::IIGPlatformDIBPtr platformDib = page->PlatformDIBExport(GearCORELib::IG_DIB_EXPORT_FORMAT_WINDOWS,false, 0, 0, page->ImageWidth, page->ImageHeight, 0);
HGLOBALhDib = LongToHandle(platformDib->DIBPtrGet());
// Read the barcodes
pBarcodeXpress->AnalyzehDib(HandleToLong(hDib));
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VB示例:使用ImageGear导入图像 get
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' Load the Page
DimpageAsNewIGPage
IGFormatsCtl1.LoadPageFromFile page, fileName, 0
' Export the platform dib from the page
DimplatformDibAsIGPlatformDIB
SetplatformDib = page.PlatformDIBExport(IG_DIB_EXPORT_FORMAT_WINDOWS,False, 0, 0, page.ImageWidth, page.ImageHeight, 0)
' Get the dib handle
DimhDibAsLong
hDib = platformDib.DIBPtrGet
' Read the barcodes on the image
bcx8.AnalyzehDib hDib
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