Hrm, intresting.. Out of curosity, in TaskManager Process tab, go View/ Select Columns.. and Check GDI Objects, see how much work you are really putting on the GDI system.

I would say the problem is how much Windows must clip the screen output. When the window is maximized the only surface that needs to be drawn is your window, but when you are not maxed, Windows must draw the windows under yours and then clip out your Windows client area from them.

#1> This is some really old code laying around in the depths of my harddrive, but it should be exactly what you are looking for. It's not really a programming problem as much as a math problem, luckily Euclidean did all the work for us many years ago. Euclidean algorithm for finding the Greatest Common Denominator: void GCD(int &Nume, int &Denom) { int a= Nume; int b= Denom int temp = a % b; while (temp > 0) //Keep searching till a % b evenly { a = b; //Cycle Values b = temp; temp = a % b; } Nume= Nume / b; Denom= Denom /b; } #2> Ok, this one is easier than it seems. So lets say we the float 6.44 from the user. Now the easy part, casting a floating point into an integer will automaticall truncate the number, therefore leaving us with only the whole number, simple subtraction does the rest.

float f1 = 6.44f;
int Int1= (int) f1; //Truncate 6.44 to int 6
f1= f1 - Int1;      // 6.44 -6 = 0.44