XnView Software

I have a small unicode layer built into gflW, the C++ Wrapper, that demonstrates the use of callbacks.
It's not really good, but it does it job.
Maybe you can get some ideas from it

http://celebnamer.celebworld.ws/stuff/libgflW/

Yes, i use char* but you can convert UNICODE to multibyte

You can't actually.
Works if the filename only contains char representable by the system locale.
But won't work with "real" WideChar filenames.
E.g. I won't be able to open files with arab chars in the name under my de-DE Windows ...

Think I finally got what you mean.
There is a reason that the second parameter takes a pointer-to-pointer argument: It reassigns the "pointed pointer".
It doesn't care if cpy already has a value assigned.
It will simply override the address pointed by copy.
This per design (and perfectly valid ...

The speed is quite bad here :p
...
Sysinfo

AMD 2600+ , 1GB DDR 400 , Maxtor 160GB IDE , WinXP

Indeed.
files: 1573
size: 773770.61 kb
size: 755.64 MB
size: 0.74 GB
avg.s: 491.91 kb/file
time: 7.96920195 secs
avg.t: 0.00506624 secs/file
This benchmark was performed on my system (see above ...

The speed is quite good here :p

Done a small benchmarking tool (single-threaded).
Available from http://celebnamer.celebworld.ws/stuff/test_gflfi_speed/ (+ Source).


my lil GflSDK getFileInformation() benchmark :p
(C) 2006 Nils Maier - Code subject to BSD-style license ...

Hi everybody,

To test the installation of the ASP component, I use the example.asp and image.asp provided with install.

If the image is located in the same folder as example.asp and image.asp, it works fine. Like
Path = Server.MapPath("/GflAx")
File = Path & "\image.jpg"
File = Path & "\result ...

Marty wrote:can't find the function in the vb bas files

Then add the declaration yourself.
should look like this (not tested at all):

can any body tell me how can i get image width and height in cm.... now i get it in pixels.... plz help....

hmm... not quite sure.
Actually It should be px / dpi * ci.
ci means a constant describing "cm : inch" which is 2.54 : 1 (as dpi = dots/px per inch).

example:
2000px / 300dpi * 2.54 ~ 16 ...

I recommend naming such a thing "gflLikelyImage" or similar, as this is not actually a check but just a hint.
And this fact should be clearly documented.
Otherwise novice GflSDK users will stumple over this for sure.

I just understand a little french.
But I won't bother writing it... it simply would suck.

Anyway...
You might want to have a look at gflSetPluginsPathname.

Edit.
D'oh. You already figured it out it seems.
Please excuse my ignorance to read all of your posts.

I'm writing application in C++Builder environment. Now I'm interesting of the one-color bitmaps. I created class with two gflBitmap objects - for example gflb1 and gflb2. When I tried to resize the first of them to the second with using of glfResize function, the address of the gflb2 is moved on 88 ...

When keeping all those Images "alive" you might soon run out of memory ;)
An 1000x1000 24bit (RGB) image would require:
1000 x 1000 x 3 = 3000000 bytes ~ 2,9 MB (just the Data alone).
Even in "managed code" applications like C#, VB or java will produce memory leakage is fairly easily possible ...

Never programmed Delphi (at least no serious programming).

I see this declarations in libgfl.pas

type PGFL_FILE_INFORMATION = ^TGFL_FILE_INFORMATION;
TGFL_FILE_INFORMATION = record
...

function gflLoadThumbnail(const filename: PChar;
width, height: GFL_INT32;
var bitmap: PGFL_BITMAP;
var ...

The "issue" is the following:
After the SOS marker is encountered in a JFIF complicant file no further markers are read.

In not quite sure if it is actually allowed to have markers after SOS section, but I did not find anything (JFIF spec, JPEG spec) thats says no. But I just had a quick glance ...

TransparentBlt indeed kinda requires Win2000 or later.
See Windows Platform SDK Documentation.
Win9x implementation is there but "contains a memory leak that can exhaust system resources. To draw a transparent bitmap using BitBlt, see Knowledge Base article 79212 ."

But the correct wrappers should ...