[Qt-interest] implementing scrollbars

[Avishek_Sharma]

Hi,
  when implementing 'zoom in' facility,I want scrollbars to appear on the 'label' on which I am displaying the image(label is inside a form say 'Form1').
I am writing down the code for the zoom facility which I presently have with me.

void picture_display::zoomin()
{
  QPixmap pm;
enum zoom_values
   {
     Zoom50,           //Zoom50 , Zoom75,Backtonormal can be selected from a dropdown box
     Zoom75,
    BacktoNormal
   };
switch(zoom->currentItem())
 {
   case Zoom50:
         /* what and where to write to bring in the scroll bars*/
         pm=pictureresize(path_of_pic,1500,600);                   //pictureresize() is a manually created  function
                                                                                        //to resize pics

         pic_display->setPaletteBackgroundPixmap(pm);          //pic_display is the label on which I need to show
                                                                                         //the  final enlarged pic with the scrollbars
         break;
    case Zoom75:
        ...................
}

I went over QScrollView and QScrollArea but couldn't understand the codes properly.
Please give me some idea on what to do.I need to do this for for Qt 3.3 and 4.3.
Thanks in advance.

regards,
Avi



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