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okovongo.$ okovongo.
05/16/2007 :: 11:31
Anonyme
| | Hi,
I am using CreateImageFromFile to load an image. I also want to delete the file after the image was loaded but the file seem to be locked by the library.
Do you know how I can release the file lock without dropping my image object? I am using the OCX in Centura.
Thanks in advance,
Peter | |
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Loïc$2006306 Loïc
05/16/2007 » 11:41
Registered
| | Hi,
I give you 2 solutions:
1 - Using DrawImage into new memory image
Dim oGdPicture As New GdpicturePro.cGdPicture
Dim nInputImageID As Long, nMemoryImageID As Long
nInputImageID = oGdPicture.CreateImageFromFile("c:\test.jpg")
nMemoryImageID = oGdPicture.CreateNewImage(oGdPicture.GetWidth, oGdPicture.GetHeight, oGdPicture.GetIntPixelFormat)
Call oGdPicture.DrawImage(nInputImageID, 1, 1, oGdPicture.GetWidth, oGdPicture.GetHeight)
Call oGdPicture.CloseImage(nInputImageID)
2 - Using string image data buffer
Dim oGdPicture As New GdpicturePro.cGdPicture
Dim sImageString As String
Call oGdPicture.CreateImageFromFile("c:\test3.jpg")
sImageString = oGdPicture.SaveAsString("bmp")
Call oGdPicture.CloseNativeImage
Call oGdPicture.CreateImageFromString(sImageString)
PS: There is other solutions...
Best regards,
Loïc Carrère
Edited by @lcarrere | |
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okovongo$2007135 okovongo
05/17/2007 :: 01:31
Registered
| | Thanks Loïc. I used your first option and it worked.
The SaveAsString function does not seem to work in Centura, neither does CreateImageFromString. Any ideas?
Something else, do you have documentation with examples? It will help a lot to see how all the methods are implemented.
Thanks for your help so far.
Peter | |
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Loïc$2006306 Loïc
11/09/2007 » 19:24
Registered
| | Hi, the SaveAsString() method returns unicode char. (wchar in c++).
I think you have to convert unicode to ascii with Centura...
For the documentation you can get various samples and the full documentation here: http://www.gdpicture.com/documentation.php
Best regards,
Loïc Carrère
Edited by @lcarrere | |