C语言图形模式编程，个性鼠标。 - C语言论坛

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不好意思，没例子确实难懂，以下是一个简单的例子（将鼠标移到长条框就可以改变鼠标了）：

/*-----------------------------------------------------------*/
/*--- ---*/
/*--- C 语言"箭头鼠标"与"手形鼠标"的切换 ---*/
/*--- ---*/
/*--- －－－ 2007.03.18 ---*/
/*-----------------------------------------------------------*/
#include <stdio.h>
#include <graphics.h>
#include <dos.h>
/*======================= 必需的全局变量 ===================*/

union REGS regs;
int up[16][16],down[16][16];
int mouse_draw[16][16];
int pixel_save[16][16]; /* 保存被鼠标覆盖的区域颜色*/
int Mousekind=0+1*2+15*4+2*64;
/* "形状(0和1)","标记外围或内部颜色(其中的 15 和 2)"*/
/*===========================================================*/
void MouseMath() /* 计算鼠标的样子*/
{ /*Point hotspot[]={{0,11},{0,0},{4,0},{4,0}};热点*/
int i,j,jj,k;
int full,kind;
long UpNum[2][16] = { /* hand */
0xf3ff,0xe1ff,0xe1ff,0xe1ff,
0xe001,0xe000,0xe000,0xe000,
0x8000,0x0000,0x0000,0x0000,
0x0000,0x0000,0x8001,0xc003,

0x3fff,0x1fff,0x0fff,0x07ff,/* arrow箭头 */
0x03ff,0x01ff,0x00ff,0x007f,
0x003f,0x00ff,0x01ff,0x10ff,
0x30ff,0xf87f,0xf87f,0xfc3f,
};
long DownNum[2][16]={ /* hand */
0x0c00,0x1200,0x1200,0x1200,
0x13fe,0x1249,0x1249,0x1249,
0x7249,0x9001,0x9001,0x9001,
0x8001,0x8001,0x4002,0x3ffc,

0x0000,0x4000,0x6000,0x7000,/* arrow箭头 */
0x7800,0x7c00,0x7e00,0x7f00,
0x7f80,0x7e00,0x7c00,0x4600,
0x0600,0x0300,0x0300,0x0180,
};
kind = (Mousekind>>1)%2; /* 手形还是箭头*/
full = Mousekind%2; /* 是否空心*/

for(i=0;i<16;i++)
{
j=jj=15;
while(UpNum[kind][i]!=0)
{
up[i][j]=UpNum[kind][i]%2;
j--;
UpNum[kind][i]/=2;
}
while(DownNum[kind][i]!=0)
{
down[i][jj--]=DownNum[kind][i]%2;
DownNum[kind][i]/=2;
}
for(k=j ;k>=0;k--) up [i][k]=0;
for(k=jj;k>=0;k--) down[i][k]=0;
for(k=0;k<16;k++)
{ /*四种组合方式*/
if(up[i][k]==0&&down[i][k]==0)
{ /* 是否为空心*/
if(full) mouse_draw[i][k]=1;
else mouse_draw[i][k]=2;
}
else if(up[i][k]==0&&down[i][k]==1)
{
if(full) mouse_draw[i][k]=2;
else mouse_draw[i][k]=1;
}
else if(up[i][k]==1&&down[i][k]==0) mouse_draw[i][k]=3;
else mouse_draw[i][k]=4;
}
}
if(kind==1) mouse_draw[1][2]=0;/*特殊点*/
else mouse_draw[1][2]=4;
}

void MouseOn(int x,int y)
{ /* 鼠标光标显示*/
int i,j;
int color[2];

color[0]=Mousekind>>2;
color[1]=Mousekind>>6;
for(i=0;i<16;i++)
{
for(j=0;j<16;j++)
{
pixel_save[i][j]=getpixel(x+j,y+i);/* 保存原来的颜色*/
if(mouse_draw[i][j]==1)
putpixel(x+j,y+i,color[0]);
else if(mouse_draw[i][j]==2) /* 画鼠标*/
putpixel(x+j,y+i,color[1]);
}
}
}

void MouseOff(int x,int y)
{ /* 隐藏鼠标*/
int i,j,color;

for(i=0;i<16;i++)
for(j=0;j<16;j++)
{
if(mouse_draw[i][j]==3||mouse_draw[i][j]==4) continue;
color=getpixel(x+j,y+i);
putpixel(x+j,y+i,color^color); /* 原位置异或消去*/
putpixel(x+j,y+i,pixel_save[i][j]);/* 还原原背景*/
}
}

int MouseRead(int *px,int *py,int *buttons)
{ /* 读取鼠标及键盘状态*/
int but_old=*buttons;
int x_old=*px,y_old=*py;

do{ /* 或 return getch(); 返回ASCII码值*/
if(kbhit()) return bioskey(0);/* 若有键盘点击返回键值*/
regs.x.ax=3;
int86(0x33,&regs,&regs);
*px=regs.x.cx; /* x坐标*/
*py=regs.x.dx; /* y坐标*/
*buttons=regs.x.bx; /* 返回鼠标击键状态:
0未点击 1点击左键
2点击右键 3点击双键*/
}while(*px==x_old&&*py==y_old&&*buttons==but_old);

MouseOff(x_old,y_old);/* 原位置异或消去擦除,并还原*/
but_old=*buttons;
x_old=*px;
y_old=*py;
MouseOn(*px,*py); /* 新位置显示*/
return -1;
}

int MouseInbox(int x1,int y1,int x2,int y2,int x,int y)
{
return((x>=x1&&x<=x2&&y>=y1&&y<=y2)?1:0); /* 若在预定区域就返回 1 */
}

int MouseInit()
{ /* 初始化鼠标*/
int recored;

MouseMath(); /* 初始化时先计算*/
regs.x.ax=0;
int86(0x33,&regs,&regs);/* 调用中断检测*/
recored=regs.x.ax;
if(recored==0)
{ printf("Mouse not found !\n");
getch();return 0;
}
regs.x.ax = 1; /* 显示鼠标*/
int86(0x33,&regs,&regs);
return recored;
}

void main()
{
int msx,msy,msz,order;
int gmode=0,gdriver=DETECT;/* 和gdriver = VGA,gmode = VGAHI是同样效果 */

registerbgidriver(EGAVGA_driver);/* 注册BGI驱动后可以不需要.BGI文件的支持运行 */
initgraph(&gmode,&gdriver,"");
if(graphresult())
{
printf ("Graphics isn't available...");
getch();exit(1);
}
MouseInit();/* 初始化*/

setcolor(1);
rectangle(140,80,500,110);
setfillstyle(8,2);
floodfill(150,100,1);setcolor(15);
outtextxy(182,85,"Move to me to change mouse's shape");
outtextxy(180,100,"Click me to quit ... QQ: 527274766");
for(;;)
{
order=MouseRead(&msx,&msy,&msz);
if(order==283) break;

if( MouseInbox(140,80,500,110,msx,msy))
{ /* 改变鼠标形状*/
if(Mousekind!=1+0*2+9*4+15*64)
{
MouseOff(msx,msy);/* 擦除*/
Mousekind=1+0*2+9*4+15*64;/* 改变*/
MouseMath();/* 重新计算鼠标形状*/
}
if(msz==1) { closegraph();exit(0);}
}
else
{ /* 还原鼠标形状*/
if(Mousekind!=0+1*2+15*4+2*64)
{
MouseOff(msx,msy);
Mousekind=0+1*2+15*4+2*64;
MouseMath();
}
}
}
}