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c:graphics.h:line [2024/02/16 01:05] (current) |
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+ | ===== line ===== | ||
+ | |||
+ | |||
+ | ====Syntax of line ==== | ||
+ | <code c> | ||
+ | #include <graphics.h> | ||
+ | void line(int x1, int y1, int x2, int y2); | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== Description of line ==== | ||
+ | <code c> | ||
+ | line draws a line in the current color, using the current line style and | ||
+ | thickness between the two points specified, (x1,y1) and (x2,y2), without | ||
+ | updating the current position (CP). | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== Example of line ==== | ||
+ | <code c> | ||
+ | /* line example */ | ||
+ | |||
+ | #include <graphics.h> | ||
+ | #include <stdlib.h> | ||
+ | #include <stdio.h> | ||
+ | #include <conio.h> | ||
+ | |||
+ | int main(void) | ||
+ | { | ||
+ | |||
+ | /* request autodetection */ | ||
+ | int gdriver = DETECT, gmode, errorcode; | ||
+ | int xmax, ymax; | ||
+ | |||
+ | /* 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); | ||
+ | } | ||
+ | |||
+ | setcolor(getmaxcolor()); | ||
+ | xmax = getmaxx(); | ||
+ | ymax = getmaxy(); | ||
+ | |||
+ | /* draw a diagonal line */ | ||
+ | line(0, 0, xmax, ymax); | ||
+ | |||
+ | /* clean up */ | ||
+ | getch(); | ||
+ | closegraph(); | ||
+ | return 0; | ||
+ | } | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== See also ==== | ||
+ | [[getlinesettings]] | ||
+ | [[linerel]] | ||
+ | [[lineto]] | ||
+ | [[setcolor]] | ||
+ | [[setlinestyle]] | ||
+ | [[setwritemode]] | ||
+ | |||
+ | |||
+ | ===== output of line example ===== | ||
+ | |||
+ | no output of example at the moment | ||
+ | do not hesitate and add it... | ||
+ | |||
+ | |||