C nyelv és zsebpénz

Hi guys!

I have about 15 problems need to be solved. The first 4 problems are listed below. If someone is really good at C language and wants to earn some money, so contact me to this email: budapest.peter@gmail.com . For 1 solved problem I offer 2.500 Ft, so 4 problems below you will have 10.000 Ft easily. I will send money to your bank account. I live in Budapest. If you have any question, write to me.

Problem: bitmap file control
Conditions:
- Language: C
- Use GCC to compile
- API Win 32

1. A program can do: open RGB Bmp file, rotate photo ±90o, ±180o as well, save photo to another name. (in cmd console also can be done)

2. A program can do: open RGB Bmp file, save, the photo is displayed in one window, rotate photo ±90o, ±180o , resize. The photo always be in the center of the window, even after we resize it.

3. A program can do: open RGB Bmp file, save, the photo is displayed in one window, rotate photo ±90o, ±180o , resize. If the photo is bigger than the window’s size, than it can be resized to fit the window but keep the ratio between height and width (zoom in).

4. A program can do: open RGB Bmp file, save, the photo is displayed in one window, rotate photo ±90o, ±180o , resize. If the photo is too big than the window’s size, user can be scroll down to see, zoom in, zoom out..