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Sep 8th, 2000, 10:57 AM
#1
Thread Starter
Lively Member
Ok here's my dilema,
I need to draw a series of 20 parrallel lines in a picture box at a spacing of 30 twips on form load.
Here's the code I have but it ain't drawing a single
line...
Dim sngX As Single, sngY As Single
Private Sub Form_Load()
sngX = 0
sngY = 0
For i = (1) To (20)
picMap.Line (sngX, sngY)-(sngX + 30, sngY)
intX = intX + 30
intY = intY + 30
Next i
End Sub
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Sep 8th, 2000, 11:17 AM
#2
Junior Member
Two comments:
-If the code is correct, you use in the line method variables sngX and sngY and after you add 30 at other variables.
-When you show a form, first you load the form into memory and after you show the form. It means, the form is loaded, you draw in the form and then the form is cleared to show itself, this is why this code don't draw anything.
You may put this code in the event Form_Activate or in the event Form_Paint. I try to put the code in the event Form_Activate and works well.
[Sorry for my english]
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Sep 8th, 2000, 11:37 AM
#3
Lively Member
Using twips these are almost too small to see. Make sure that Autoredraw is set to true on the picture box. Also where you have intX and intY did you mean to have sngX and sngY? That was the only way I could get it to work. Try turning option explicit on. It will require you to declare all your variables, and can help you find typos.
In twips they are there, but really really small.
Here is what I have to get them to show in pixels
Code:
Private Sub Form_load()
picmap.AutoRedraw = True
sngX = 0
sngY = 0
For i = (1) To (20)
picmap.Line (sngX, sngY)-(sngX + 30, sngY)
sngX = sngX
sngY = sngY + 30
Next i
End Sub
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