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Newcomers DBPro Corner / As long, as boolean, as string, as integer, as double integer,

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1tg46
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Posted: 19th Sep 2004 12:58
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I need an explanation of each of these and I need to know if their is an alternative to "as long" as I cannot seem to use the function in my programs.

Correct me if I am wrong:

1)as integer means an integer
2)as boolean is a 1 or 0 true or false answer
3)as string is basically any text

I am lost with:

4)as DWORD
5)as double integer
6)as long

Could someone explain please?

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Mattman
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Posted: 19th Sep 2004 13:11
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a word is 2 bytes, so like 00 - 99 is a word. a dword is a double word, so 4 bytes. 0000-9999. its a byte, so it could be hi for word and blue for a dword. get it?

cant help you with teh other two, sorry

Matt

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Lost in Thought
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Posted: 19th Sep 2004 13:24
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I don't think there are "long" data types in DBP as the integers are already the size of "long". This chart may help you.


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IanM
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Posted: 19th Sep 2004 20:48
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'As DWORD' is a 4 byte unsigned integer
'As double integer' is an 8 byte integer
'As long' - there is no such thing. The equivalent is a standard 'As integer'

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1tg46
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Posted: 20th Sep 2004 01:36
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Thanks, because I have been trying out some API commands and they required a RECT structure

RECT structure
topright as long
topleft as long
bottomleft as long
bottomright as long
endstucture

I am not sure exactly how this would turn out using as integer instead of as long because it seems like it would return the x and y coordinate of the rect point.

Could someone show an example using this structure, you can get information on this structure from API Guide, and API viewer.

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Phaelax
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Posted: 20th Sep 2004 02:47
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as for boolean, most languages have reserved words of true and false. DB doesn't, so i think anything other than zero is considered true.

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the_winch
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Posted: 20th Sep 2004 03:46
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Gets the width and height of the desktop




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1tg46
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Posted: 20th Sep 2004 05:28
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Thanks for posting an example. I'll try to work around that sample to help myself to API.

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IanM
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Posted: 20th Sep 2004 07:12
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You can use my array plug-in to do this too. Here's an updated version of winchs code:



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1tg46
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Posted: 21st Sep 2004 08:34
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Thanks

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1tg46
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Posted: 22nd Sep 2004 05:49
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Just downloaded the program so I should be able to try it. Great site by the way.

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