vb6.0 help Urgent

[kumar_ps]

I am using this code for when i scan more than one page in my application. if we click previous page button it shows previous page. but present i need code for next page.




If n_ImageCount > 1 Then
n_ImageCount = n_ImageCount - 1
cpapidrawimage PicImage.hWnd , g_Image(n_ImageCount)
Else
MsgBox ("This is last page")
End If

[BSOB]

you would need a function to return the number of pages scanned in so far. either count each time this sub runs or have a static veriable that just adds one each time one is scanned.

maxscanned

If n_ImageCount < maxscanned Then
n_ImageCount = n_ImageCount - 1
cpapidrawimage PicImage.hWnd , g_Image(n_ImageCount)
Else
MsgBox ("This is last page")
End If

not that i changed the ">1" to "<maxscanned"

determining the number of scanned pages depends on the rest of your application

[kumar_ps]

Thanks for u r responce n_imagecount is the variable that count no of pages we scan. so can u give me full explanation... how to declare maxscanned...

Thanku

you would need a function to return the number of pages scanned in so far. either count each time this sub runs or have a static veriable that just adds one each time one is scanned.

maxscanned

If n_ImageCount < maxscanned Then
n_ImageCount = n_ImageCount - 1
cpapidrawimage PicImage.hWnd , g_Image(n_ImageCount)
Else
MsgBox ("This is last page")
End If

not that i changed the ">1" to "<maxscanned"

determining the number of scanned pages depends on the rest of your application

[BSOB]

from what i can tell from your 4 or 5 lines of code, "n_imagecount" is not the number of pages you have scanned but it is the page number that you are currently veiwing. you need to have a variable (i chose the name maxscanned arbitrarily) that tells you how many pages you have total.
each time you scan a page, add 1 to the variable maxscanned.
to ensure that the scope is big enough, put

Dim MaxScanned as integer

in your general declaration section.
you will then be able to return or set its value from anywhere on that form.
im still leaving it up to you to use that variable as a running count of scanned pages. again i say that that depends on the rest of your code.
my previous post still holds valid.