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DarkBASIC Professional Discussion / reading image names from disk and opening as a variable

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Roel Sanchez
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Posted: 2nd Nov 2010 15:48
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Excuse me for this simple question but I'm not at home to test it out with actual code.

I should be able to open a file, read the name of the image (BMP) into a variable, img$ and then load bitmap img$, 1 right?

For some reason, I seem to recall trying that a few years ago, it not working and then me resorting to hard-coding the image name and location.

Help and thanks in advance!
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baxslash
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Posted: 2nd Nov 2010 15:51 Edited at: 2nd Nov 2010 15:51
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You should be able to set a variable to that of a file name... IE "Return String=GET FILE NAME$()"

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Roel Sanchez
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Posted: 2nd Nov 2010 16:09
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thanks for the response baxslash. I was thinking of doing:

open to read 1, "config.txt"
read string 1, imgpath$
load bitmap imgpath$, 1

instead of:

load bitmap "..\images\logo.bmp", 1
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baxslash
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Posted: 2nd Nov 2010 16:19
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That should work fine.

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Mobiius
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Posted: 2nd Nov 2010 18:08
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@Roel Sanchez: That code is near perfect.

My signature is NOT a moderator plaything! Stop changing it!
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Green Gandalf
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Playing: Malevolence:Sword of Ahkranox, Skyrim, Civ6.
Posted: 2nd Nov 2010 21:49
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Quote: "I should be able to open a file, read the name of the image (BMP) into a variable, img$ and then load bitmap img$, 1 right?"


Yes.

Quote: "That should work fine."


It does.

Quote: "That code is near perfect."


Indeed. The important word is "near".

The original code works perfectly - but you won't see anything on the screen unless you do something which puts the bitmap on the screen in some way. For example, this works fine for me:

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Grog Grueslayer
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Posted: 3rd Nov 2010 16:26
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@ Roel Sanchez:

The only time you should use LOAD BITMAP is if you're going to manipulate the image in some way before regrabbing it with GET IMAGE. If you want to load an image and use it without changing it use LOAD IMAGE.



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