asked on

reading bmp file from dll

When trying to load a picture (800x600.bmp) into an Image field, from a dll.

var
hLib : integer;
hRes : Thandle;
begin
hLib:=loadLibrary('e:\unpack\1\empire.dll');
hREs := findREsource(hLib,'black','800x600');
Image1.Picture.LoadFromFile(string(hRes));
end;

this gives me an error message saying picture with invalid extension. However I think it is something else.
I made a simple dll, with a res file called black.res.

ZifNab

Try this (haven't tested it! Just a guess!) :

DllHandle := LoadLibrary({name.dll});

And use this DllHandle with

Image1.Picture.LoadImage(DllHandle, 'black', image_bitmap,
800,600, (options);

Have fun,
c.u.
ZifNab;

TheSwine

Is this a Dll you wrote? or someone else?

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ZifNab

????

{name.dll} is dll file you want to read.

In your case it's LoadLibrary('e:\unpack\1\empire.dll');

and LoadImage is just a function of Win32. (New - Windows95)

degraef

ASKER

nothing suggested here seems to work.
Here is the complete history.

created res file as follows; black.res 'black' '800x600.bmp'
put it in a dll ($R black.res) compiled the dll = empire.dll.

in mainform of program I have an Image1 component.

The Load.Image1.Picture
or Image1.Picture.LoadImage suggested did not work.

ZifNab

What are the errors?
Did you make your Res -file with the image editor of delphi?

degraef

ASKER

With Load.Image1.. I get 'Unknown command' as well as the LoadImage

I made the res with brcc32.exe

ZifNab

Which version of Delphi are you working on?
What if you make the res with Image editor?

degraef

ASKER

Delphi 3

Haven't tried the image editor yet