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 TImageEnView always show the last open image

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T O P I C    R E V I E W
adisonx Posted - Dec 10 2014 : 22:43:04
My program is when user is open image from dialog box,I want to store image to vector so every images can navigate using left key and right key.But TImageEnView always show the last image that open no matter I try to attach any image from vector.Here is my codes
....
if(this->OpenImageEnDialog->Execute())
{
ImageEnView->IO->LoadFromFile(OpenImageEnDialog->FileName);
TIEBitmap* image = new TIEBitmap(ImageEnView->IO->IEBitmap); //clone image
imageVect.push_back(image); //add new image to vector
this->AddPage();//increase total page number

}
...

//Now at navigate part
...

void TMainForm::AttachImage(int pageNo)
{

TIEBitmap* image = imageVect.at(pageNo-1);//get image pointer from vector
this->ImageEnView->IO->AttachedIEBitmap = image; //attach image to IO
this->ImageEnView->IO->Update();//update

}


Thank you.
4   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Dec 12 2014 : 19:48:27
Hi

StoreType will determine where images added to a TImageEnMView are stored at full size or thumbnail:

http://www.imageen.com/help/TImageEnMView.StoreType.html


Please try:

....
// When user add image
ImageEnMView->AppendImage(OpenImageEnDialog->FileName);

...

// When user navigate page
TIEBitmap* image = ImageEnMView->GetTIEBitmap(pageNo-1);
this->ImageEnView->IO->AttachedIEBitmap.Assign( image );
this->ImageEnView->Update;



Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
adisonx Posted - Dec 12 2014 : 04:02:19
Now I changed my code to
....
//when user add image
ImageEnView->IO->LoadFromFile(OpenImageEnDialog->FileName);
TIEBitmap* image = new TIEBitmap(ImageEnView->IO->IEBitmap); //clone image
ImageEnMView->AppendImage(image);
this->AddPage();//increase total page number
....
...
//when user navigate throught page
void TMainForm::AttachImage(int pageNo)
{

TIEBitmap* image = ImageEnMView->GetTIEBitmap(pageNo-1);
this->ImageEnView->IO->AttachedIEBitmap = image; //attach image to IO



}



But TImageEnView does not update image that it should be.
Please give me some suggestion.

Thank you.
adisonx Posted - Dec 12 2014 : 03:32:08
It 's true that when I set display mode to mdSingle and it 's show single image,but at show at thumbnail size.All I want to do is show image like the way of TImageEnView.
My images are scanned images and one document can has many pages and user can
view each page by navigation(like PDF reader) and do some works like zoom in or zoom out and modify image. If TImageEnMView is the solution so please give me some sample of setting.




Thank you.
xequte Posted - Dec 11 2014 : 14:45:41
Hi

I'm not sure you are doing this the best way. Why not use a TImageEnMView object? It can efficiently store many images and you can set DisplayMode to sdSingle to shown only one image:

http://www.imageen.com/help/TImageEnMView.DisplayMode.html

Or output assign the current bitmap to a TImageEnMView.

Nigel
Xequte Software
www.xequte.com
nigel@xequte.com