Loading from resource ??

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6 total messages Started by Asger Jorgensen Sat, 21 Jul 2007 11:57

#1498

Author: Asger Jorgensen
Date: Sat, 21 Jul 2007 11:57

53 lines
1999 bytes

Hi there 

I am trying to loaad an animated cursor from resource,
this is what i've done.

The .rh file:

#ifndef ICONS_RH
#define ICONS_RH

#define ID_CURSOR_WORKING  1002
#endif
//---------------------------

The .rc file:

#include "Icons.rh"

ID_CURSOR_WORKING  ANICURSOR "Abe.ani"

//---------------------------

I have added the .rc file to my project and the exe file 
is bigger now.

in the Form::OnShow i do:

HCURSOR hCursor = LoadCursor((void*)HInstance,
                  MAKEINTRESOURCE(ID_CURSOR_WORKING));

but hCursor is NULL.

If i do this:
HCURSOR hCursor = LoadCursorFromFile(CursorFile.c_str());

every thing works fine.

I have also tryed:
HRSRC hRsrc = FindResource( HInstance,	
    MAKEINTRESOURCE(ID_CURSOR_WORKING),	
    RT_ANICURSOR 	
   );
but FindResource also returns NULL

when I look at my exe file with the XN Resource Editor
I can see that there is a group called ANICURSOR and a lot of data
under the ID 1002

Anybody who knows what I am doing wrong ??


Thanks in advance
Asger

Re: Loading from resource ??

#1499

Author: Dennis Jones
Date: Sat, 21 Jul 2007 16:25

42 lines
1986 bytes

"Asger Jorgensen" <Junk@Asger-P.dk> wrote in message 
news:MPG.210c130d589713669897af@newsgroups.borland.com...
> Hi there
>
> I am trying to loaad an animated cursor from resource,
> this is what i've done.
>
> The .rh file:
>
> #ifndef ICONS_RH
> #define ICONS_RH
>
> #define ID_CURSOR_WORKING  1002
> #endif
> //---------------------------
>
> The .rc file:
>
> #include "Icons.rh"
>
> ID_CURSOR_WORKING  ANICURSOR "Abe.ani"

That looks wrong.  You are using the previously #defined integer value as 
the name of the resource.  I don't have a whole lot of experience with 
resources, but in my RC files, the same thing might look like:

// define a name for the 'working' cursor
CURSOR_WORKING ANICURSOR "Abe.ani"

Then in my code:

LoadCursor( (void *)Hinstance, "CURSOR_WORKING" );

or:

FindResource( (void *)HInstance, "CURSOR_WORKING", RT_ANICURSOR );

Note that I don't have to use MAKEINTRESOURCE (the point of which I've never 
understood anyway!).

- Dennis

Re: Loading from resource ??

#1500

Author: Ed Mulroy [TeamB]
Date: Sat, 21 Jul 2007 17:03

13 lines
1465 bytes

MAKEINTRESOUCE creates a number and casts it to a char* pointer.

It is used when working with most RC files because labeling a resource with 
a character string both uses much more memory and slows access compared with 
giving it a number for an ID.

.  Ed

> Dennis Jones wrote in message
> news:46a23395$1@newsgroups.borland.com...
> ...
> Note that I don't have to use MAKEINTRESOURCE (the point of which I've 
> never understood anyway!).

Re: Loading from resource ??

#1501

Author: Asger Jorgensen
Date: Sat, 21 Jul 2007 17:38

15 lines
1252 bytes

Hi Dennis

Thanks for trying, but that was not what is wrong.:(

About doing it the way I'm doing:
Thats just how I have seen it done, and not knowing any better.;-)

I tryed Your way and mine with a normal cursor file, and they
both work, but with an animated cursor, there is no luck.

Any other suggestions ?

Thanks in advance
Kind regards
Asger

Re: Loading from resource ??

#1502

Author: Bob Gonder
Date: Sat, 21 Jul 2007 17:43

20 lines
1403 bytes

Asger Jorgensen wrote:

>#define ID_CURSOR_WORKING  1002
>#endif
>
>ID_CURSOR_WORKING  ANICURSOR "Abe.ani"

This is from an old group message (2000)

#define ANICURSOR 21
10 ANICURSOR "Abe.ani"

Also, same thread, this:
Win 9x doesn't load animated cursors from resources--only from files.

Here's a Delphi version:
http://www.delphiforfun.org/Programs/Delphi_Techniques/AnimatedCursors.htm

Here's a way to do it using RCDATA instead.
http://tinyurl.com/3a748q

Re: Loading from resource ??

#1503

Author: Asger Jorgensen
Date: Sat, 21 Jul 2007 18:44

14 lines
1216 bytes

Hi Bob

That last link defenetly looks like a way to go.
Thats what I call a work arround..;-)

I don't know about win9x, but xp and 2000 defenetly
don't load animated cursors from resource.

Thanks for the help
Best regards
Asger

> Here's a way to do it using RCDATA instead.
> http://tinyurl.com/3a748q

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