How to change image when it is runtime?

How to change image when it is runtime?

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How to change image when it is runtime? - 1/7/2010 10:03:58 PM

xiaojun.Li

Posts: 4
Joined: 1/7/2010
Status: offline

Dear all,
I want to change image to another when program is running, I should how to do ?
Thanks!

Post #: 1

RE: How to change image when it is runtime? - 1/8/2010 10:05:41 AM

Maxx

Posts: 287
Joined: 3/22/2004
Status: offline

You can change any card using code similar to this.

Dim crd As CDI.IndexCard3D.Card = iC3D1.IndexCards[3] 'this will grab the 4th card in the list of cards
crd.ImagePath = "c:\....\myimage.jpg"
iC3D1.Invalidate()

The crd object contains everything about the card you are modifying including Text, BackImage etc.

Hope that helps.

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Director of CDI Support

(in reply to xiaojun.Li)

Post #: 2

RE: How to change image when it is runtime? - 1/18/2010 8:23:56 PM

xiaojun.Li

Posts: 4
Joined: 1/7/2010
Status: offline

Thanks，it is exactly what i need.

(in reply to Maxx)

Post #: 3

RE: How to change image when it is runtime? - 1/18/2010 11:03:04 PM

xiaojun.Li

Posts: 4
Joined: 1/7/2010
Status: offline

quote:

Dim crd As CDI.IndexCard3D.Card = iC3D1.IndexCards[3] 'this will grab the 4th card in the list of cards
crd.ImagePath = "c:\....\myimage.jpg"

Hello Maxx,
I try it according to your resolution, but alert "Index was outside the bounds of the array." information, why?

Thanks!

(in reply to Maxx)

Post #: 4

RE: How to change image when it is runtime? - 1/20/2010 7:11:19 AM

Maxx

Posts: 287
Joined: 3/22/2004
Status: offline

This can happen if you try to retrieve a card that is past the last card loaded. If you only had two cards and you tried to read the 3rd one this error would occur.

If you are not using the CacheLoading option you also need to call

iC3D1.IndexCards.LoadTexturesToMemory()

before trying to overwritte a card with a different image. The reason is, the cards have not been written to video memory yet. If you try to replace the card, it tries to update the video memory of where the card should be, but since we didn't load it yet it will cause an error.

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Director of CDI Support

(in reply to xiaojun.Li)

Post #: 5