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c++for-loopbitmappixeldrawrectangle

Trying to draw a Rectangle (Bitmap)

Ive used two simple for loops which sets pixels to create a left side and top side to a rectangle. My code looks this: 

for (int i = 0; i < Width; i++)
{
    SetViewportPixel(X+i, Y, PixelColour);
}

for (int j = 0; j < Height; j++)
{
    SetViewportPixel(X , Y+j, PixelColour);
}

I've tried many different ways to create the other half but keep stumbling. I've tried using nested for loops to no avail. Was wondering if anyone could help? Thanks.

Solution 
  • for (int i = 0; i < Width; i++)
{
    SetViewportPixel(X+i, Y+Height-1, PixelColour);
}

for (int j = 0; j < Height; j++)
{
    SetViewportPixel(X+Witdh-1 , Y+j, PixelColour);
}

    Should take care of the other half.