GDAL 单文档 图片打开，显示，拖动，缩小功能实现

[{"title":"（ 93 个子文件 54.1MB ） GDAL 单文档 图片打开，显示，拖动，缩小功能实现","children":[{"title":"MyPicture2","children":[{"title":"Debug","children":[{"title":"MyPicture2.exe <span style='color:#111;'> 644.50KB </span>","children":null,"spread":false},{"title":"MyPicture2.pdb <span style='color:#111;'> 10.43MB </span>","children":null,"spread":false},{"title":"MyPicture2.ilk <span style='color:#111;'> 10.82MB </span>","children":null,"spread":false},{"title":"gdal201.dll <span style='color:#111;'> 9.28MB </span>","children":null,"spread":false},{"title":"MyPicture2.lib <span style='color:#111;'> 218.75KB </span>","children":null,"spread":false},{"title":"MyPicture2.exp <span style='color:#111;'> 131.50KB </span>","children":null,"spread":false}],"spread":true},{"title":"ipch","children":[{"title":"mypicture2-3aa12c74","children":[{"title":"mypicture2-c39259e0.ipch <span style='color:#111;'> 89.75MB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"MyPicture2.sln <span 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