使用 gdip.image ，发现不是都能获得DateTime信息

codefish

大家好，使用 gdip.image ，发现不是都能获得DateTime信息。
有的没有，但是windows下右键查看时可以看到的。
谢谢。

代码如下：
[0x0132]="DateTime"; 这个不是每个手机拍摄的jpg都能取到。其实是有的。

1. //图像EXIF信息
   
2. import console;
   
3. import inet.http;
   
4. import fsys.dlg;
   
5. import gdip;
   
6. 
   
7. var jpgPath = fsys.dlg.open("jpg图像文件|*.jpg||","请选择图像",fsys.getSpecial(0x27 /*_CSIDL_MYPICTURES*/) )
   
8. if(!jpgPath) return;
   
9. 
   
10. exifTags = {
    
11. [0x0001]="GpsLatitudeRef";
    
12. [0x0003]="GpsLongitudeRef";
    
13. [0x0005]="GpsAltitudeRef";
    
14. [0x0006]="GpsAltitude";
    
15. [0x0007]="GpsGpsTime";
    
16. [0x0008]="GpsGpsSatellites";
    
17. [0x0009]="GpsGpsStatus";
    
18. [0x000C]="GpsSpeedRef";
    
19. [0x000D]="GpsSpeed";
    
20. [0x000E]="GpsTrackRef";
    
21. [0x0010]="GpsImgDirRef";
    
22. [0x0013]="GpsDestLatRef";
    
23. [0x0015]="GpsDestLongRef";
    
24. [0x0017]="GpsDestBearRef";
    
25. [0x0019]="GpsDestDistRef";
    
26. [0x001A]="GpsDestDist";
    
27. [0x00FE]="NewSubfileType";
    
28. [0x00FF]="SubfileType";
    
29. [0x0100]="ImageWidth";
    
30. [0x0101]="ImageHeight";
    
31. [0x0102]="BitsPerSample";
    
32. [0x0103]="Compression";
    
33. [0x0106]="PhotometricInterp";
    
34. [0x0107]="ThreshHolding";
    
35. [0x0108]="CellWidth";
    
36. [0x0109]="CellHeight";
    
37. [0x010A]="FillOrder";
    
38. [0x010D]="DocumentName";
    
39. [0x010E]="ImageDescription";
    
40. [0x010F]="EquipMake";
    
41. [0x0110]="EquipModel";
    
42. [0x0111]="StripOffsets";
    
43. [0x0112]="Orientation";
    
44. [0x0115]="SamplesPerPixel";
    
45. [0x0116]="RowsPerStrip";
    
46. [0x0117]="StripBytesCount";
    
47. [0x0118]="MinSampleValue";
    
48. [0x0119]="MaxSampleValue";
    
49. [0x011A]="XResolution";
    
50. [0x011B]="YResolution";
    
51. [0x011C]="PlanarConfig";
    
52. [0x011D]="PageName";
    
53. [0x011E]="XPosition";
    
54. [0x011F]="YPosition";
    
55. [0x0120]="FreeOffset";
    
56. [0x0121]="FreeByteCounts";
    
57. [0x0123]="GrayResponseCurve";
    
58. [0x0128]="ResolutionUnit";
    
59. [0x0129]="PageNumber";
    
60. [0x012D]="TransferFunction";
    
61. [0x0131]="SoftwareUsed";
    
62. [0x0132]="DateTime";
    
63. [0x013B]="Artist";
    
64. [0x013C]="HostComputer";
    
65. [0x013D]="Predictor";
    
66. [0x013E]="WhitePoint";
    
67. [0x013F]="PrimaryChromaticities";
    
68. [0x0140]="ColorMap";
    
69. [0x0141]="HalftoneHints";
    
70. [0x0142]="TileWidth";
    
71. [0x0143]="TileLength";
    
72. [0x0144]="TileOffset";
    
73. [0x0145]="TileByteCounts";
    
74. [0x014C]="InkSet";
    
75. [0x014D]="InkNames";
    
76. [0x014E]="NumberOfInks";
    
77. [0x0151]="SamplesPerPixel";
    
78. [0x0152]="ExtraSamples";
    
79. [0x0153]="SampleFormat";
    
80. [0x0154]="SMinSampleValue";
    
81. [0x0155]="SMaxSampleValue";
    
82. [0x0156]="TransferRange";
    
83. [0x0200]="JPEGProc";
    
84. [0x0201]="JPEGInterFormat";
    
85. [0x0202]="JPEGInterLength";
    
86. [0x0203]="JPEGRestartInterval";
    
87. [0x0205]="JPEGLosslessPredictors";
    
88. [0x0206]="JPEGPointTransforms";
    
89. [0x0207]="JPEGQTables";
    
90. [0x0208]="JPEGDCTables";
    
91. [0x0209]="JPEGACTables";
    
92. [0x0211]="YCbCrCoefficients";
    
93. [0x0212]="YCbCrSubsampling";
    
94. [0x0213]="YCbCrPositioning";
    
95. [0x0214]="REFBlackWhite";
    
96. [0x0302]="ICCProfileDescriptor";
    
97. [0x0303]="SRGBRenderingIntent";
    
98. [0x0320]="ImageTitle";
    
99. [0x5001]="ResolutionXUnit";
    
100. [0x5002]="ResolutionYUnit";
     
101. [0x5003]="ResolutionXLengthUnit";
     
102. [0x5004]="ResolutionYLengthUnit";
     
103. [0x5005]="PrintFlags";
     
104. [0x5006]="PrintFlagsVersion";
     
105. [0x5007]="PrintFlagsCrop";
     
106. [0x5008]="PrintFlagsBleedWidth";
     
107. [0x5009]="PrintFlagsBleedWidthScale";
     
108. [0x500A]="HalftoneLPI";
     
109. [0x500B]="HalftoneLPIUnit";
     
110. [0x500C]="HalftoneDegree";
     
111. [0x500D]="HalftoneShape";
     
112. [0x500E]="HalftoneMisc";
     
113. [0x500F]="HalftoneScreen";
     
114. [0x5010]="JPEGQuality";
     
115. [0x5011]="GridSize";
     
116. [0x5012]="ThumbnailFormat";
     
117. [0x5013]="ThumbnailWidth";
     
118. [0x5014]="ThumbnailHeight";
     
119. [0x5015]="ThumbnailColorDepth";
     
120. [0x5016]="ThumbnailPlanes";
     
121. [0x5017]="ThumbnailRawBytes";
     
122. [0x5018]="ThumbnailSize";
     
123. [0x5019]="ThumbnailCompressedSize";
     
124. [0x501A]="ColorTransferFunction";
     
125. [0x501B]="ThumbnailData";
     
126. [0x5020]="ThumbnailImageWidth";
     
127. [0x5021]="ThumbnailImageHeight";
     
128. [0x5022]="ThumbnailBitsPerSample";
     
129. [0x5023]="ThumbnailCompression";
     
130. [0x5024]="ThumbnailPhotometricInterp";
     
131. [0x5025]="ThumbnailImageDescription";
     
132. [0x5026]="ThumbnailEquipMake";
     
133. [0x5027]="ThumbnailEquipModel";
     
134. [0x5028]="ThumbnailStripOffsets";
     
135. [0x5029]="ThumbnailOrientation";
     
136. [0x502A]="ThumbnailSamplesPerPixel";
     
137. [0x502B]="ThumbnailRowsPerStrip";
     
138. [0x502C]="ThumbnailStripBytesCount";
     
139. [0x502D]="ThumbnailResolutionX";
     
140. [0x502E]="ThumbnailResolutionY";
     
141. [0x502F]="ThumbnailPlanarConfig";
     
142. [0x5030]="ThumbnailResolutionUnit";
     
143. [0x5031]="ThumbnailTransferFunction";
     
144. [0x5032]="ThumbnailSoftwareUsed";
     
145. [0x5033]="ThumbnailDateTime";
     
146. [0x5034]="ThumbnailArtist";
     
147. [0x5035]="ThumbnailWhitePoint";
     
148. [0x5036]="ThumbnailPrimaryChromaticities";
     
149. [0x5037]="ThumbnailYCbCrCoefficients";
     
150. [0x5038]="ThumbnailYCbCrSubsampling";
     
151. [0x5039]="ThumbnailYCbCrPositioning";
     
152. [0x503A]="ThumbnailRefBlackWhite";
     
153. [0x503B]="ThumbnailCopyRight";
     
154. [0x5100]="FrameDelay";
     
155. [0x5101]="LoopCount";
     
156. [0x5102]="GlobalPalette";
     
157. [0x5103]="IndexBackground";
     
158. [0x5104]="IndexTransparent";
     
159. [0x5110]="PixelUnit";
     
160. [0x5111]="PixelPerUnitX";
     
161. [0x5112]="PixelPerUnitY";
     
162. [0x5113]="PaletteHistogram";
     
163. [0x8298]="Copyright";
     
164. [0x829A]="ExifExposureTime";
     
165. [0x829D]="ExifFNumber";
     
166. [0x8769]="ExifIFD";
     
167. [0x8773]="ICCProfile";
     
168. [0x8822]="ExifExposureProg";
     
169. [0x8824]="ExifSpectralSense";
     
170. [0x8825]="GpsIFD";
     
171. [0x9101]="ExifCompConfig";
     
172. [0x9102]="ExifCompBPP";
     
173. [0x9201]="ExifShutterSpeed";
     
174. [0x9202]="ExifAperture";
     
175. [0x9206]="ExifSubjectDist";
     
176. [0x9207]="ExifMeteringMode";
     
177. [0x9208]="ExifLightSource";
     
178. [0x927C]="ExifMakerNote";
     
179. [0x9286]="ExifUserComment";
     
180. [0x9290]="ExifDTSubsec";
     
181. [0x9291]="ExifDTOrigSS";
     
182. [0x9292]="ExifDTDigSS";
     
183. [0xA002]="ExifPixXDim";
     
184. [0xA003]="ExifPixYDim";
     
185. [0xA005]="ExifInterop";
     
186. [0xA20B]="ExifFlashEnergy";
     
187. [0xA20E]="ExifFocalXRes";
     
188. [0xA20F]="ExifFocalYRes";
     
189. [0xA210]="ExifFocalResUnit";
     
190. [0xA214]="ExifSubjectLoc";
     
191. [0xA215]="ExifExposureIndex";
     
192. [0xA217]="ExifSensingMethod";
     
193. [0xA302]="ExifCfaPattern";
     
194. }
     
195.   
     
196. var img = gdip.image(jpgPath)
     
197. for( id,propertyItem in img.eachProperty() ){  
     
198.         console.printf('0x%04x\t%s\t%s',id,exifTags[id]:"unknown", propertyItem.text  )
     
199.         console.more( 10 )
     
200. }
     
201. 
     
202. execute("pause")

复制代码

JacenHe

反馈BUG请提供有意义的信息，点右上角“BUG反馈”，
例如：你认为有问题的JPG图像文件，你认为不一致的信息对比截图。

任何文件，都有创建时间，这并不表示EXIF里就一定有。
Windows是一个操作系统，而gdip.image是一个图像类，功能不好直接拿来对比。