ImageEn for Delphi and C++ Builder ImageEn for Delphi and C++ Builder

 

ImageEn Forum
Profile    Join    Active Topics    Forum FAQ    Search this forumSearch
 All Forums
 ImageEn Library for Delphi, C++ and .Net
 ImageEn and IEvolution Support Forum
 How to refresh a hidden ImageEnView

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

View 
UserName:
Password:
Format  Bold Italicized Underline  Align Left Centered Align Right  Horizontal Rule  Insert Hyperlink   Browse for an image to attach to your post Browse for a zip to attach to your post Insert Code  Insert Quote Insert List
   
Message 

 

Emoji
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Black Eye [B)]
Frown [:(] Shocked [:0] Angry [:(!] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

 
Check here to subscribe to this topic.
   

T O P I C    R E V I E W
bmesser Posted - Jul 14 2026 : 05:41:19
Hi

I have a TGridPanel (2x2) that each contain a ImageEnView component.

I have a hidden ImageEnView component (SlippMap) that I use generate four separate images to populate each of these four images in the grid.

Because it's hidden, and even though the visible is still set true, an Image.update doesn't force the OnCanvas event to fire and I end up with four blank images.

I've never come across this before, and even AI doesn't know a work round, apart from using 'bring to front' to make it visible.

Surely you should be able to use an ImageEnView as a non visible drawing engine?

Bruce.
1   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Jul 14 2026 : 16:02:53
Hi Bruce

Is your purpose to get an image of a map? If so, you shouldn't use a hidden TImageEnView, just a TIEBitmap. Have you tried the helper method:

http://www.imageen.com/help/TIEBitmapHelper.GenerateMap.html

Nigel
Xequte Software
www.imageen.com