gflLoadBitmapFromHandle

Ash · Post by **Ash** » Wed Oct 06, 2004 2:23 pm

Hi,
VERY good soft (thank you), but very small 'help'.

I want to receive an information about load process and have a chance to abort it. I see the solution of this problem in use the 'gflLoadBitmapFromHandle' - function.

Question: in structure 'GFL_LOAD_PARAMS' -> fields ' (GFL_READ_CALLBACK) Read, Tell, Seek' : what is this functions prototype?

Post by **xnview** » Wed Oct 06, 2004 2:40 pm

Ash wrote:VERY good soft (thank you), but very small 'help'.

Thanks

I want to receive an information about load process and have a chance to abort it. I see the solution of this problem in use the 'gflLoadBitmapFromHandle' - function.
Question: in structure 'GFL_LOAD_PARAMS' -> fields ' (GFL_READ_CALLBACK) Read, Tell, Seek' : what is this functions prototype?

You can't with gflLoadBitmapFromHandle! These functions are used when you want to use your own IO functions.
The next release will have a callback to be able to abort a load process.
Pierre.

Ash · Post by **Ash** » Wed Oct 06, 2004 3:08 pm

You wrote:

These functions are used when you want to use your own IO functions

well, if 'read' function will put in buffer only first 10K (all *.jpg file is 100K), what gflLoadBitmapFromHandle will do?
(i hope, it request last 90K on next step)

... by the way.... the "Tell"-function: what it doing?

Thank you!

Post by **xnview** » Wed Oct 06, 2004 4:10 pm

Ash wrote:well, if 'read' function will put in buffer only first 10K (all *.jpg file is 100K), what gflLoadBitmapFromHandle will do?
(i hope, it request last 90K on next step)

No, read callback works like read/fread file IO.

... by the way.... the "Tell"-function: what it doing?

It's to know where we are in the data, like ftell.
Pierre.

Guest · Post by **Guest** » Wed Oct 06, 2004 4:25 pm

Thank you for your answer.

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