Preview file with gdViewer lock files....

[sarzan]

I m using version 3,9005 of gdViewer (included in gdPicture Pro control).

When i use the .DisplayFromFile method the source file is locked. Other application can access it read only.
And more.. if i close the application without close the picture first (using .closepicture or .close2picture method) the file remain locked until the system reboot (this is a critical issue).

I try this simple workaround:

Code: Select all

gdViewer1.DisplayFromFile (sTmpFile)
gdViewer1.Close2Picture


In this way the file don't lock and the picture still display on gdViewer, BUT i can do any action on it like setting the zoom factor (es. .ZoomMode = ZoomToViewer produce no effect).

There is a way to load the image in the viewer, release the file, and menage it ?

[Loïc]

Hi Sarzan,

When i use the .DisplayFromFile method the source file is locked

You can switch the ImageForceTemporaryMode property to True to keep the source file unlocked.

if i close the application without close the picture first (using .closepicture or .close2picture method) the file remain locked until the system reboot (this is a critical issue).

Into the next release, all the images opened & created by the GdViewer and the cGdPicture classes will be removed automatically on the application shutdown.

Code: Select all

There is a way to load the image in the viewer, release the file, and menage it ?

Yes, you can do that using the GdPicture Pro component like that:

Code: Select all

Dim oGdPicture as new GdPicturePro.cGdPicture
dim nNewImageHandle as long

nNewImageHandle = oGdPicture.CreateClonedImageI(GdViewer1.GetNativeImage())
GdViewer1.ClosePicture()
GdViewer1.SetNativeImage(nNewImageHandle)

Best regards,

Loïc Carrère