Displaying images at the same position in gdviewer

[munteanuramiro]

I want to use gdviewer for display a live video and with every frame of the live video i displayed it with the function displayfromhbitmap in the gdviewer control. The problem appears when i do a little zoom on the gdviewer control and then i try to do a pan, to move from the center of the image, but then the new frame is displayed with displayfromhbitmap which centers again the image on gdviewer and i loose the pan position this way. Is there any way to use displayfromhbitmap or other function without centering the image on the control ? Or other solution for this problem.

[Loïc]

Hi,

You can change the ImageAlignment property:

https://www.gdpicture.com/references/gdv ... nment.html

Can be:
ImagePositionMiddleLeft = 0
ImagePositionMiddleRight = 1
ImagePositionMiddleCenter = 2
ImagePositionTopLeft = 4
ImagePositionTopRight = 5
ImagePositionTopCenter = 6
ImagePositionBottomLeft = 7
ImagePositionBottomRight = 8
ImagePositionBottomCenter = 9

Regards,

Loïc

[munteanuramiro]

Sorry i think that ImageAlignment doesn't work for my problem. ImageAlignment has only 9 positions for the image, but sometimes pan can put the image between this image alignment limits so it will not be the same position.

Regards,
Ramiro Munteanu

[Loïc]

Ok,

I will add a KeepImagePosition property for the next release (end of this month). I think it will resolve your problem.

Regards,

Loïc