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[Gandalf]

Sun May 22, 2005 9:22 pm


Picture Loaded in Condition Statement?

-----------------------------------

I didn't know how else to state this problem.

How you check if there is a certain picture loaded in an if statement.  For example, what I tried, which obviously didn't work is:


var pic := Pic.FileNew ("pic.bmp")
if pic := Pic.FileNew ("pic.bmp") then
    put "this picture is loaded"
else
    put "there is no picture loaded"
end if


Do I have to make some boolean condition true when the pic is loaded, and then check for that?  It seems like too much hastle...


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Delos

Sun May 22, 2005 9:39 pm



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Check the Error.Last and Error.LastMsg things.  They return values after Pic.New is called, so you can use them to determine whether or not the pic has loaded.


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[Gandalf]

Sun May 22, 2005 9:51 pm



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Hmm, can you explain this a bit more?  How do you use Error.Last and Error.LastMsg?  If I add what I posted previously, the program doesn't even compile...


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Bacchus

Sun May 22, 2005 10:51 pm



-----------------------------------

just check to see if the var = 0, if it does then the pic wasnt created :P


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MysticVegeta

Sun May 22, 2005 10:55 pm



-----------------------------------

unsuccessful pic open error is error # 201


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zylum

Mon May 23, 2005 12:25 am



-----------------------------------

var pic := Pic.FileNew ("pic.bmp")
if Error.Last not= 0 then
    put "this picture is loaded"
else
    put "there is no picture loaded"
end if 


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Cervantes

Mon May 23, 2005 8:01 am



-----------------------------------

Heh, you've got it backwards, zylum.  Error.Last returns zero if there is no error.

var pic := Pic.FileNew ("pic.bmp")
if Error.Last = 0 then
    put "this picture is loaded"
else
    put Error.LastMsg
end if



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MysticVegeta

Mon May 23, 2005 9:28 am



-----------------------------------

Gandalf do you mean if the pic is already open? or the importing file error?


-----------------------------------

zylum

Mon May 23, 2005 9:44 pm



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Heh, you've got it backwards, zylum.  Error.Last returns zero if there is no error.

yup, you're right  :wink:


-----------------------------------

[Gandalf]

Tue May 24, 2005 10:55 pm



-----------------------------------

Thanks for all that, I was looking for something else, but this helps too.

I found a simple way of doing what I wanted, I was just doing things the wrong, redundant way...  Thanks for all the help.