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Ulla · Guest

Hi all, i know this is a strange question... when i compiled my
application first time i used .Res file to insert all my icons
and bitmaps into the execution (EXE) file. Now lets say that i
want to add a new bitmap into the execution file, but i don't
want to do compilation again, is it possible to "plant" the new
bitmap into the execution file somehow? any possible way to do
that?

Thanks!
Ulla

Ulla · Guest

What i mean is that i want to create an application that get an
execution file (EXE), and a bitmap (BMP), and creates a new EXE
file that include the bitmap inside it.

Thanks!
Ulla

"Ulla" <Ulla456599 (AT) hotmail (DOT) com> wrote:

Hans Galema · Guest

Ulla wrote:

Hans Galema · Guest

Ulla wrote:

Ulla · Guest

Hi, first i like to explain why i need it, my application use
a text file in order to create the form and what on it, on this
text file i can write an instructions for creat a TImage on the
form and to display on it the image "MyImage.bmp", this image
is inside the exe file, but what if tomorrow i will want to add
a picture name "NewPic.bmp" and to display it on this TImage
instead of "MyImage.bmp"? i don't want to do another
compilation for that, what i want is that if when i run my
application it detects that the folder contains bmp images it
will run a function (inside the application) that create a new
exe file that will now hold the new bmp inside it also.

What i was thinking of is that if i can detect where in the exe
file end the last bmp, i can copy all the code part (byte by
byte) untill there to another file, then "plant" the code for
the new bmp, and then right after to continue copy the rest of
the original file untill the end, then delete the old exe and
rename the new exe to the name of the exe that was deleted.

But i don't know how to do it... also should i update only one
place in this exe file with the new bmp? or should i split my
updates to deveral places inside the exe?

Thanks!

Hans Galema · Guest

Ulla wrote:

Willem Jongman · Guest

Ulla wrote:

Ron Sawyer · Guest

If I understand this request, then yes, this can be done.

Create the program that is using the bitmap. It will need some special
processing that I'll talk about later. Let us call this Graphics.exe.

Create the program that will add the bitmap to Graphics.exe. This
program will:
1. Read in Graphics.exe
2. Write Graphics.exe to a new file
3. Get the current file location (if you used fopen to create the new
exe, use ftell. If you used a files stream, use the equivelent of ftell,
whatever that is.) Store the location in a long.
4. Read in the bitmap
5. Write the bitmap to the end of the new file.
6. Write your long to the end of the file.
Close the exe.

Now in order for Graphics.exe to use the bitmap:
1. Graphics.exe must open itself up - I would use a TStream.
2. Seek to the end of file - 4.
3. Read 4 bytes into a long.
4. Seek from the beginning of the file to the place indicated by the
long you just read.
5. Create a bitmap. I *think* TBitmap has a method to read a bitmap in
from a stream.
6 Close your stream.

I'm pretty sure I remembered every step, but give it a try and play
around.

Ulla wrote:

Dumboo · Guest