Re: Studio amd asm code - C / C++ / MFC Discussion Boards

Re: Studio amd asm code

David Crow16-Jan-07 3:11

David Crow

16-Jan-07 3:11

DanB1983 wrote:
But every time i build i get unresolved external.

Regarding what (e.g., functions in your .asm files, or in your .cpp files)? Are your .asm files being compiled into .obj files?

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Re: Studio amd asm code

DanB198316-Jan-07 3:30

DanB1983

16-Jan-07 3:30

Hey thanks for the reply.

The problem is that I have an asm function that writes to video memory called ClearRectangle(BYTE left, BYTE top, BYTE right, BYTE bottom, BYTE colour).

I attempt to compile this with ml.exe (as per the build step i talked about in my first post).

I also have a cpp file that simplified looks like this:

typedef char BYTE;
extern ClearRectangle(BYTE left, BYTE top, BYTE right, BYTE bottom, BYTE character, BYTE colour);

int main(void)
{
ClearRectangle(0, 0, 80, 25, 0xDB, 0x1);
}

When i compile this i get ASM error LNK2019: unresolved external symbol "void __cdecl ClearRectangle(char left, char top, char right, char bottom, char character, char colour)"

Re: Studio amd asm code

David Crow16-Jan-07 4:04

David Crow

16-Jan-07 4:04

DanB1983 wrote:
The problem is that I have an asm function that writes to video memory called ClearRectangle...

Have you considered doing this via Win32? I'm not sure how it compares speed-wise, but you would get past this compiler/linker roadblock.

DanB1983 wrote:
When i compile this i get ASM error LNK2019: unresolved external symbol "void __cdecl ClearRectangle(char left, char top, char right, char bottom, char character, char colour)"

Which indicates that the ASM's .obj file is not being linked. You'll need to make that change.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: Studio amd asm code

DanB198316-Jan-07 5:00

DanB1983

16-Jan-07 5:00

Hi
Win32 isnt really an option I am doing this as an exercise in asm.

How do i link in the obj file? I have looked at additional dependancies etc but am still not sure.

Thanks

Dan

Re: Studio amd asm code

David Crow16-Jan-07 5:42

David Crow

16-Jan-07 5:42

DanB1983 wrote:
How do i link in the obj file?

Project Settings (Alt+F7)
    --> Link tab
        --> Object/library modules

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: Studio amd asm code

James R. Twine16-Jan-07 6:51

James R. Twine

16-Jan-07 6:51

DanB1983 wrote:
The problem is that I have an asm function that writes to video memory called ClearRectangle(BYTE left, BYTE top, BYTE right, BYTE bottom, BYTE colour).

This is a little OT, but is this from an older (256-color) DOS-based application? You cannot (easily) write directly to video memory from a normal Win32 application, so I am not sure that this will work correctly even after you resolve the linking problem. We have come a long way from the days of ModeX programming. Smile | :)

   It looks like a character-based operation, but I figured I would make sure - given that the function takes no parameter to indicate which console window to use, or what address to write to...

   Also, BYTE is normally typedefed to unsigned char.

   Peace!

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Re: Studio amd asm code

DanB198316-Jan-07 8:39

DanB1983

16-Jan-07 8:39

Hi.

Thanks for the typedef suggestion.

I am porting some functions I wrote using Borland Compiler 4.0 (C/C++) (16bit).
They worked under windows 2k and windows XP. The screen memory location is within the function:- b800h that is then used along with an offset and simple maths to write chars at the correct positions.

I have quite a few asm screen related functions that need porting - this is just a practice so I think I will just continue to use BC v4.0

Thanks for every ones help.

Dan

Re: Studio amd asm code

James R. Twine16-Jan-07 11:43

James R. Twine

16-Jan-07 11:43

Heh - I remember B800 quite well! Smile | :)

   I am surprised that things are working correctly writing directly to that address actually does anything under Windows, unless running in a DOS prompt, but now that I think about it, you are using character locations, so that actually makes a bit of sense... :/

   Good luck to you...! - If sticking with character operations, it might be worth investigating the Console functions. They are a bit of a pain in the ass to use, especially if doing anything in color, but they are the Win32 way of doing things...

   Peace!

About Dialog BackGround images..

klvin15-Jan-07 23:14

klvin

15-Jan-07 23:14

Hi !!

How can I set Jpeg image as a dialog background ???
I know how to set the Bmp as a dialog background.But, I don't know how to set a Jpeg image.
Can anyone please give me the solution for this.

Thanks & Regrads,
klvin.

Re: About Dialog BackGround images..

QuickDeveloper16-Jan-07 0:28

QuickDeveloper

16-Jan-07 0:28

klvin wrote:
How can I set Jpeg image as a dialog background ???

Hi,If you are using VC8 see the CImage Class in MSDN.Using that you can get the Handle of JPEG and use it as BMP to display the image.

"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"

Re: About Dialog BackGround images..

Hamid_RT16-Jan-07 1:12

Hamid_RT

16-Jan-07 1:12

CImage m_Image;
m_Image.Load(yourfile);
m_Image.BitBlt(...);

Or you can use of GDI+

WhiteSky

Re: About Dialog BackGround images..

prasad_som15-Jan-07 23:16

prasad_som

15-Jan-07 23:16

And whats that ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: About Dialog BackGround images..

toxcct15-Jan-07 23:25

toxcct

15-Jan-07 23:25

prasad_som wrote:
And whats that ?

what's what ? JPEG ? Confused | :confused:

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Re: About Dialog BackGround images..

prasad_som15-Jan-07 23:27

prasad_som

15-Jan-07 23:27

I'd replied to his empty message. Which he's deleted. Again, keeping my reply hanging.

toxcct wrote:
JPEG ?

I know that.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: About Dialog BackGround images..

toxcct15-Jan-07 23:36

toxcct

15-Jan-07 23:36

he deleteda duplicate message, and that's better than leaving the same message posted twice... Wink | ;)

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Re: About Dialog BackGround images..

prasad_som16-Jan-07 0:49

prasad_som

16-Jan-07 0:49

But I dont know, how it is allowed to delete messages having replies.

Prasad
Notifier using ATL | Operator new[],delete[][^]

how to change font of resources used in application?

Atul2315-Jan-07 23:00

Atul23

15-Jan-07 23:00

Hi
All
I am doing project in VC++/MFC for multiple language so i have to use japanese, marathi font in messagebox, caption of dialog box,so how to type these font in resource.

Atul Mahajan

Re: how to change font of resources used in application?

Rajesh R Subramanian15-Jan-07 23:10

Rajesh R Subramanian

15-Jan-07 23:10

Japenese? If you are using Visual Studio 6, then you have to load all the unicode strings dynamically. Because VS6 is unaware of unicode. Otherwise, you could change the font to what you want from the "properties" of the dialog or control.

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Re: how to change font of resources used in application?

jhwurmbach15-Jan-07 23:10

jhwurmbach

15-Jan-07 23:10

Maybe this http://www.codeproject.com/cpp/introtolocalization.asp[^] can help you?

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

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Re: how to change font of resources used in application?

Hamid_RT16-Jan-07 1:23

Hamid_RT

16-Jan-07 1:23

I suggest see IG MultiLanguage Toolkit [^]

WhiteSky

Portable C++ IDE

Turkoglan15-Jan-07 22:56

Turkoglan

15-Jan-07 22:56

Hi All,

I'm looking for a portable C++ IDE to work with it anywhere. I came across Bloodshed Dev-cpp which uses Mingw but I have many problems with it. Now I wanna see if there is any other portable c++ compiler?

Re: Portable C++ IDE

Don Box15-Jan-07 23:07

Don Box

15-Jan-07 23:07

Y don't u use VC++ 6.0?

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Re: Portable C++ IDE

toxcct15-Jan-07 23:20

toxcct

15-Jan-07 23:20

do you understand Portable ?

moreover, please construct correct sentences, with real words (no abbreviations)... Sleepy | :zzz:

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Re: Portable C++ IDE

Cedric Moonen15-Jan-07 23:48

Cedric Moonen

15-Jan-07 23:48

Turkoglan wrote:
I came across Bloodshed Dev-cpp

I don't think the IDE is cross-platform. It is just for windows as far as I know (but I might be wrong).

I know that Code::Blocks[^] is cross-platform and I heard a lot of good things from it. You should take a look at it (never used it myself).

Cédric Moonen
Software developer

Charting control [v1.1]

Re: Portable C++ IDE

Nemanja Trifunovic16-Jan-07 2:12

Nemanja Trifunovic

16-Jan-07 2:12

Turkoglan wrote:
I'm looking for a portable C++ IDE to work with it anywhere

I guess Eclipse + CDT is one such IDE. Be aware it is a memory hog (written with Java).

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