Writing in a window

To write text in a CCATSL window, CCATSL provides the function PrintfCL.

PrintfCL

PrintfCL is the analogue of the standard C library routine printf but uses the current CCATSL window. The routine WLinesCL can be used to find out how many lines of text a window can hold.

	void PrintfCL (	int col,
		int row,
		char *format, ... );

	col, row		The location of the start of the string, relative to the top-left corner of the window: 1,1 is the top-left corner.
	format, ...		See printf for an explanation of the remaining arguments.

An example of using PrintfCL is shown below. Note that because the exact screen location of the string is specified in the first two arguments, there is no need to append a newline character \n to the format string.

int i; double r; /* ... */ PrintfCL(1,1,"Iteration=%i Radius=%f",i,r);

WLinesCL

WLinesCL returns the maximum number of text lines viewable in the current window. This is useful in the context of the routine PrintfCL.

n=WLinesCL();