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词条 getbkcolor
释义

§ 词条解释

函数名: getbkcolor

功 能: 返回当前背景颜色

用 法: int far getbkcolor(void);

§ 程序例:

#include <graphics.h>

#include <stdlib.h>

#include <string.h>

#include <stdio.h>

#include <conio.h>

int main(void)

{

/* request auto detection */

int gdriver = DETECT, gmode, errorcode;

int bkcolor, midx, midy;

char bkname【35】;

/* initialize graphics and local variables */

initgraph(&gdriver, &gmode, "");

/* read result of initialization */

errorcode = graphresult();

/* an error occurred */

if (errorcode != grOk)

{

printf("Graphics error: %s\",

grapherrormsg(errorcode));

printf("Press any key to halt:");

getch();

/* terminate with an error code */

exit(1);

}

midx = getmaxx() / 2;

midy = getmaxy() / 2;

setcolor(getmaxcolor());

/* for centering text on the display */

settextjustify(CENTER_TEXT, CENTER_TEXT);

/* get the current background color */

bkcolor = getbkcolor();

/* convert color value into a string */

itoa(bkcolor, bkname, 10);

strcat(bkname,

" is the current background color.");

/* display a message */

outtextxy(midx, midy, bkname);

/* clean up */

getch();

closegraph();

return 0;

}

§ 相关条目

计算机; 程序; 语言; 编程; C++ ; 函数

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