GetImageInfo

This function retrieves the height and width and resolution of an image.

GetImageInfo(lcImageFile,@lnWidth,@lnHeight,@lnResolution)

Return Value

.T. or .F.

Parameters

lcImageFile
The image file to retrieve info for.

@lnWidth
The width to retrieve. Pass by reference.

@lnHeight
The height to retrieve. Pass by reference

@lnResolution
The image resolution in Dot per Inch (DPI). Pass by reference.

Remarks

Uses wwImaging.dll shipped in the Web Connection directory.

This function requires wwImaging.dll and uses GDI+ which is available with XP/.NET Server by default and as separate installs on all other platforms. The latest versions of Internet Explorer (6.0), the Windows Media player and the .NET Platform also install GDI+.

Note this is a function not a method of the wwAPI class. This function is simply stored in the wwAPI.prg file.

This function supports the following image formats:

  • gif
  • jpg
  • png
  • tiff
  • bmp

GDI+ is downloadable from:
http://www.microsoft.com/downloads/release.asp?releaseid=32738

Example

lnHeight = 0
lnWidth = 0
lnResolution = 0
? GetImageInfo("d:\westwind\images\wconnect.gif",;
              @lnWidth,@lnHeight,@lnResolution)

? lnWidth, lnHeight, lnResolution

See also:

Class wwAPI

© West Wind Technologies, 1996-2019 • Updated: 05/02/13
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