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Why are bitmaps displayed in a debug version of a program but not in the release?

Posted on 2000-04-20
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Last Modified: 2013-11-20
Why are bitmaps displayed in a debug version of a program but not in the release?

1. I have an Active X control.
2. It uses AFX_MANAGE_STATE to get hold of the bitmaps from its own resource.
3. The bitmaps are loaded into an image list and displayed in a CListCtrl.
4. The bitmaps are displayed in the debug version of the program
5. The bitmaps are NOT displayed in the release.

Thanks in advance
Yakky
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Question by:yakky
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by:Wyn
ID: 2735074
Too high level
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by:inpras
ID: 2735180
We appreciate some code here....!!!
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by:ShaunWilde
ID: 2735428
without source we can only guess - however here as a suggestion

Unintialized variables - debug has a habit of initializing variables to 0 - however in release theses variables could have any value. Make sure all your variables have the values set to what you want them to be don't assume the compiler will.
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by:mikeblas
ID: 2736972
>  debug has a habit of initializing variables to 0

No, it doesn't.  An uninitialized variable is an unintialized variable. If you find one that has any particular value more often than another, you're just lucky.

(Unless you're using the /GZ compiler switch.)

..B ekiM
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by:ShaunWilde
ID: 2737225
> (Unless you're using the /GZ compiler switch.)

oops I did mean 0xCC which I think is the /GZ option (standard company option for debug here)

must remember not to rush posts b4 going home :)

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by:yakky
ID: 2751364
Ive got the bitmaps to display, I simply removed the ASSERT statement.
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by:ShaunWilde
ID: 2751392
ahh - did you by any chance have useful code in the assert?
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by:mikeblas
ID: 2752020
> I simply removed the ASSERT statement

What ASSERT statement? You haven't mentioned any ASSERT statements until now.

..B ekiM
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Author Comment

by:yakky
ID: 2752127
The ASSERT was on the CImageList Create function. Prety dumb really. Thanks for everyones help. By the way why did it work in the Debug and not in the Release?

Yakky
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ShaunWilde earned 50 total points
ID: 2752228
in release ASSERT is define as

#define ASSERT(f)          ((void)0)

which means that 'f' never gets executed

you should have used VERIFY instead which works the same as ASSERT in debug but in release it is defined as

#define VERIFY(f)          ((void)(f))

so 'f' does get executed

PS now you know why we wanted to see the code as this wuld have been spotted straight away (I hope) as it is a common gotcha (sic)
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by:yakky
ID: 2754480
Thanks for everyones help
Yakky
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