Function 1 -
put a dot in the window
Characteristic:
* eax = 1 - the number of function
* ebx = x-coordinate (relative to the window)
* ecx = y-coordinate (relative to the window)
* edx = 0x00RRGGBB - color of a point
* edx
= 0x01xxxxxx - to invert the color of the point (the lower 24 bits are ignored)
Returned value:
* function
does not return a value
Constants for registers:
eax - SF_PUT_PIXEL (1)