how i can zoom an image

web.pro كتب:

السلام عليكم

i asked to design a GDI+ inC# applacation that has the following capabilities

*-load and display an image by using OpenFileDialog object

*-automatic redrawing withiout the need for resizing the form

*-the ability to zoom an image by the foloowin factors(25%,50%,75%,100%,200%,300%,400%,800%)

*-the ability to UnDo at least the 3 previous transformation applied on the current image

*-the ability to save the transformated image and overriding the original one(menu____> file____>save)]

أرجو المساعدة ولو بفكرة لا حد من الخيارات

where i can ask for help