image to resize bmp
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image png/gif/jpg/jpeg/bmp resize save to bmp file,first createimagefromfile ,createbitmapfromimage(,,&pBitmap) ,HRESULT QueryInterface( REFIID iid, void** ppvObject),pBitmap->Queryinterface(IID_IBasicBitmapOps,&pBitmapOps);pBitmapOps->resize(,,&pBitmapResize); pBitmapResize->LockBits(,,&pbitmapData) CreateDIBSection(),
很多时候用到接口要先使用 QueryInterface实现组件交互。在使用组件交互
Imaging.h 里的接口http://msdn.microsoft.com/en-us/library/aa452250
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