I have one big picturebox of the house plan. for the sake of example, assume it is 1600 * 1200 pixels.
And on the most top and left of that house plan (position top 0 and left 0), I have another small picturebox of desk (let's say, 30* 30 pixels).
I want to move that desk to the desired its desired place in the plan (let's say, top 50, left 100).
I have bigPicture_MouseUp, bigPicture_MouseDown, Timer1_Timer.
I am able to click everywhere in bigPicture, except the 30*30 in the top left because that area is covered by the small picture.
I need to get access to every points in bigPicture... but if it is covered by the small picture, I cannot even know how to detect it...
Maybe, I just need to let the program notice, when the point hit something that not in the big picture... but, I'm clueless...
Do you have any hint? thanks