vb6 中如何使用cximage
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想用vb写个能转换图片格式的程序,听说cximage能实现,可是网上全是c中的用法。请问在vb中怎么使用cximage。
参考技术A 下载最新的cximage V701。 参考技术B 不会啊!等高手!CxImage的编译及简单使用举例
1、 从http://sourceforge.net/projects/cximage/下载最新的CxImage 702源码;
2、 解压缩后,以管理员身份打开CxImageFull_vc10.sln工程,在编译之前先将每个工程属性的Character Set由原先的Use Unicode Character Set改为Use Multi-ByteCharacter Set,首先编译jasper、jbig、jpeg、libdcr、libpsd、mng、png、tiff、zlib这9个库,然后编译cximage,cximagecrtdll,在接着编译cximagemfcdll,在编译cximagemfcdll之前,先修改其属性,linker->input->Additional Dependencies,将$(OutDir)png.lib等改为../../Debug/png.lib(../../Release/png.lib),最后编译demo、demodll;全部编译完后即可生成相应的静态库和动态库;
3、 目前CxImage支持的图像格式包括:bmp、gif、jpg、png、ico、tif、tga、pcx、wbmp、wmf、jp2、jpc、pgx、pnm、ras、jbg、mng、ska、raw和psd;
4、 CxImage中所包含的图像操作可通过打开index.htm来查看;
5、新建一个控制台工程testCxImage,将Character Set设为Use Multi-Byte Character Set,各个文件的内容为:
stdafx.h:
- #pragma once
- #include "targetver.h"
- #include <stdio.h>
- #include "../../cximage702_full/CxImage/ximage.h"
stdafx.cpp:
- #include "stdafx.h"
- // TODO: reference any additional headers you need in STDAFX.H
- // and not in this file
- #ifdef _DEBUG
- #pragma comment(lib, "../../cximage702_full/Debug/cximage.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/jasper.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/jbig.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/jpeg.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/libdcr.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/libpsd.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/mng.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/png.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/tiff.lib")
- #pragma comment(lib, "../../cximage702_full/Debug/zlib.lib")
- #else
- #pragma comment(lib, "../../cximage702_full/Release/cximage.lib")
- #pragma comment(lib, "../../cximage702_full/Release/jasper.lib")
- #pragma comment(lib, "../../cximage702_full/Release/jbig.lib")
- #pragma comment(lib, "../../cximage702_full/Release/jpeg.lib")
- #pragma comment(lib, "../../cximage702_full/Release/libdcr.lib")
- #pragma comment(lib, "../../cximage702_full/Release/libpsd.lib")
- #pragma comment(lib, "../../cximage702_full/Release/mng.lib")
- #pragma comment(lib, "../../cximage702_full/Release/png.lib")
- #pragma comment(lib, "../../cximage702_full/Release/tiff.lib")
- #pragma comment(lib, "../../cximage702_full/Release/zlib.lib")
- #endif
testCxImage.cpp:
- #include "stdafx.h"
- #include <iostream>
- #include <string>
- using namespace std;
- int main(int argc, char* argv[])
- {
- CxImage image;
- string imageName = "1.jpg";
- string imageSave = "2.tif";
- image.Load(imageName.c_str(), CXIMAGE_FORMAT_JPG);
- cout<<image.GetBpp()<<endl;
- if (image.IsValid()) {
- image.GrayScale();
- image.Save(imageSave.c_str(), CXIMAGE_FORMAT_TIF);
- cout<<"success"<<endl;
- }
- cout<<"ok"<<endl;
- return 0;
- }
GitHub:https://github.com/fengbingchun/CxImage_Test
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