C#

class SingletonChildForm<T> : ChildFormBase
{
    private static SingletonChildFormHelper theForm =
        new SingletonChildFormHelper(typeof(T));

    public static ChildFormBase CreateOrActivate(Form parent)
    {
        return theForm.CreateOrActivate(parent);
    }
}

partial class UserCatalogForm : SingletonChildForm<UserCatalogForm>
{
    public UserCatalogForm()
    {
        InitializeComponent();
    }
}

//...
int scan0 = data.Scan0.ToInt32();

byte * colPixel;
byte * rowPixel;

byte innerColorB = innerColor.B;
byte innerColorG = innerColor.G;
byte innerColorR = innerColor.R;
byte innerColorA = innerColor.A;

int stride = data.Stride;

for (int y = 0; y < height; y ++)
{
	rowPixel = (byte *)(scan0 + y * stride);
	for (int x = 0; x < width; x++)
	{
		colPixel = rowPixel + 4 * x;
		*colPixel = innerColorB;
		*(colPixel + 1) = innerColorG;
		*(colPixel + 2) = innerColorR;
		*(colPixel + 3) = innerColorA;
	}
}
//...