Programming Reference/Librarys
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outtext displays a text string in the viewport, using the current font, direction, and size. outtext outputs textstring at the current position (CP). If the horizontal text justification is LEFT_TEXT and the text direction is HORIZ_DIR, the CP's x-coordinate is advanced by textwidth(textstring). Otherwise, the CP remains unchanged. To maintain code compatibility when using several fonts, use textwidth and textheight to determine the dimensions of the string. If a string is printed with the default font using outtext, any part of the string that extends outside the current viewport is truncated. outtext is for use in graphics mode; it will not work in text mode.
/* outtext example */ #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request autodetection */ int gdriver = DETECT, gmode, errorcode; int midx, midy; /* initialize graphics and local variables */ initgraph(&gdriver, &gmode, ""); /* read result of initialization */ errorcode = graphresult(); if (errorcode != grOk) { /* an error occurred */ printf("Graphics error: %s\n", grapherrormsg(errorcode)); printf("Press any key to halt:"); getch(); exit(1); /* terminate with an error code */ } midx = getmaxx() / 2; midy = getmaxy() / 2; /* move the CP to the center of the screen */ moveto(midx, midy); /* output text starting at the CP */ outtext("This "); outtext("is "); outtext("a "); outtext("test."); /* clean up */ getch(); closegraph(); return 0; }
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