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c:graphics.h:getx [2015/05/06 23:06] |
c:graphics.h:getx [2024/02/16 01:05] (current) |
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+ | ===== getx ===== | ||
+ | |||
+ | |||
+ | ====Syntax of getx ==== | ||
+ | <code c> | ||
+ | #include <graphics.h> | ||
+ | int getx(void); | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== Description of getx ==== | ||
+ | <code c> | ||
+ | getx finds the current graphics position's x-coordinate. The value is | ||
+ | viewport-relative. | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== Example of getx ==== | ||
+ | <code c> | ||
+ | /* getx example */ | ||
+ | |||
+ | #include <graphics.h> | ||
+ | #include <stdlib.h> | ||
+ | #include <stdio.h> | ||
+ | #include <conio.h> | ||
+ | |||
+ | int main(void) | ||
+ | { | ||
+ | /* request autodetection */ | ||
+ | int gdriver = DETECT, gmode, errorcode; | ||
+ | char msg[80]; | ||
+ | |||
+ | |||
+ | /* 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 */ | ||
+ | } | ||
+ | |||
+ | /* move to the screen center point */ | ||
+ | moveto(getmaxx() / 2, getmaxy() / 2); | ||
+ | |||
+ | /* create a message string */ | ||
+ | sprintf(msg, "<-(%d, %d) is the here.", getx(), gety()); | ||
+ | |||
+ | /* display the message */ | ||
+ | outtext(msg); | ||
+ | |||
+ | /* clean up */ | ||
+ | getch(); | ||
+ | closegraph(); | ||
+ | return 0; | ||
+ | } | ||
+ | </code> | ||
+ | |||
+ | |||
+ | ==== See also ==== | ||
+ | [[getmaxx]] | ||
+ | [[getviewsettings]] | ||
+ | [[gety]] | ||
+ | [[moveto]] | ||
+ | |||
+ | |||
+ | ===== output of getx example ===== | ||
+ | |||
+ | no output of example at the moment | ||
+ | do not hesitate and add it... | ||
+ | |||
+ | |||