GdPicture Imaging Forums

HI,

I have 2 gdviewer control to display 2 different images. I need to zoom these 2 images simultaneously. Now i can only use the ZoomIn / ZoomOut function to zoom this 2 images at the same time. But when i change the gdViewer1 control mousemode to autoZoom mode, i can zoom the gdviewer1 image but i am unable to zoom the gdviewer 2 image.

There is a Function name SetZoom(zoompercentage as integer) for previous Gdpicture Pro toolkit where i am currently using. So my question is how can i zoom 2 images simultaneously when i using autozoom mode..

Hi,
It is simple, can be done in three steps:
1. GdViewer1, once you autozoom you need to get the RECT coordinates:
https://www.gdpicture.com/guides/gdpicture/v8/html/con ... teger.html
2. GdViewer2, set those coordinates to make an ROI on GdViewer2:
https://www.gdpicture.com/guides/gdpicture/v8/html/con ... teger.html
3. GdViewer2 ZoomToRect:
https://www.gdpicture.com/guides/gdpicture/v8/html/con ... mRect.html

Hope this helps.
Best Regards,
Sami

Hi Sami,

Thank For your Reply...

But the problem is the GetRecCoordinates Function only will return value when you set the mouse mode = area selection.

So for my case, when my mouse mode = auto zoom, even there is a area selection but the GetRecCoordinates Function doesn't return me any value..

Please advice again...

Hi,

You are right, there is a function for that:
https://www.gdpicture.com/guides/gdpicture/v8/html/con ... teger.html

Best Regards,
Sami