C++のマウスクリック位置

Question

C++コンソールアプリケーションでマウスクリックの位置（x & y）を取得する方法はありますか？

Answer 1

Windowsの場合：ReadConsoleInput（）を使用します。キーボードとマウスのイベントでINPUT_RECORDの配列が得られます。 GetStdHandle（）を使用して、この関数を呼び出す必要があるstdinハンドルを取得します。

Answer 2

Unixシステムでは、ncursesライブラリは、端末上で行うことができるあらゆるものに使用されます。

Windowsでも使用することができます。キーボードとマウス用

Answer 3

使用コンソール独自のイベントハンドラ - ReadConsoleInput()

は、より多くのここにあなたがダウンOS固有のAPIを取得する必要がありhttps://msdn.microsoft.com/en-us/library/windows/desktop/ms685035(v=vs.85).aspx

#include <iostream> 
#include <stdlib.h> 
#include <windows.h> 
using namespace std; 

void gotoxy(int x, int y); 
void setcolor(WORD color); 
void setForeGroundAndBackGroundColor(int ForeGroundColor,int BackGroundColor); 
void clearscreen(); 
void drawpixel(unsigned char x, unsigned char y, unsigned char Color); 
void drawpixel2(unsigned char x, unsigned char y, unsigned char Color, char character); 
void drawcircle(int x, int y, int a, int b, int color); 
void drawline(int x0, int y0, int x1, int y1, int color); 
void drawfilledrectangle(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2,unsigned char bkcol); 
void drawframe(unsigned x,unsigned y,unsigned sx,unsigned sy,unsigned char col,unsigned char col2,char text_[]); 
void drawwindow(unsigned x,unsigned y,unsigned sx,unsigned sy,unsigned char col,unsigned char col2,unsigned char bkcol,char text_[]); 

int main() 
{ 
    gotoxy(1,23); 
    setcolor(7); 
    clearscreen(); 

    cout<<"click anywhere in console window to write - hello world -\n\n\n\n\n\n\n\n\n\n\n\n\n" 
    "Press Ctrl+C to Exit"; 

     HANDLE hout= GetStdHandle(STD_OUTPUT_HANDLE); 
     HANDLE hin = GetStdHandle(STD_INPUT_HANDLE); 
     INPUT_RECORD InputRecord; 
     DWORD Events; 
     COORD coord; 
     CONSOLE_CURSOR_INFO cci; 
     cci.dwSize = 25; 
     cci.bVisible = FALSE; 
     SetConsoleCursorInfo(hout, &cci); 
     SetConsoleMode(hin, ENABLE_PROCESSED_INPUT | ENABLE_MOUSE_INPUT); 
     bool EXITGAME = false; 
     int buttonX=1, buttonY=1; 

     drawpixel(buttonX,buttonY ,1); 
     gotoxy(buttonX+2,buttonY); 
     setcolor(3); 
     cout<<"<----- a button \n"; 


    while(!EXITGAME) 
    { 

     ReadConsoleInput(hin, &InputRecord, 1, &Events); 


     switch (InputRecord.EventType){ 
       case KEY_EVENT: // keyboard input 


        switch (InputRecord.Event.KeyEvent.wVirtualKeyCode) 
        { 
         case VK_ESCAPE: 
          EXITGAME = TRUE; 
         break; 

         case VK_SPACE: 

         break; 


         case VK_RETURN: 

         break; 

         case VK_LEFT: 
          // left key move player left 
          cout<<"VK_LEFT = "<<InputRecord.Event.KeyEvent.wVirtualKeyCode <<" \n"; 

         break; 

         case VK_RIGHT: 
          // right key move player right 
          cout<<"VK_RIGHT = "<<InputRecord.Event.KeyEvent.wVirtualKeyCode <<" \n"; 

         break; 

         case VK_UP: 
          // up key move player up 
          cout<<"VK_UP = "<<InputRecord.Event.KeyEvent.wVirtualKeyCode <<" \n"; 


         break; 

         case VK_DOWN: 
          // up key move player down 
          cout<<"VK_DOWN = "<<InputRecord.Event.KeyEvent.wVirtualKeyCode <<" \n"; 


         break; 



        }//switch 

        //--------------------------------------------------------------------------------- 
        break; 

       case MOUSE_EVENT: // mouse input 

        if(InputRecord.Event.MouseEvent.dwButtonState == FROM_LEFT_1ST_BUTTON_PRESSED) 
        { 
         coord.X = InputRecord.Event.MouseEvent.dwMousePosition.X; 
         coord.Y = InputRecord.Event.MouseEvent.dwMousePosition.Y; 
         SetConsoleCursorPosition(hout,coord); 
         SetConsoleTextAttribute(hout,rand() %7+9); 

         if ((InputRecord.Event.MouseEvent.dwMousePosition.X == buttonX) && 
          (InputRecord.Event.MouseEvent.dwMousePosition.Y == buttonY)){ 

          clearscreen(); 
          gotoxy(1,1); 
          setcolor(7); 
          drawpixel(buttonX,buttonY ,1); 
          setcolor(3); 
          cout<<" mybutton was pressed \n"; 
          setcolor(7); 
          Sleep(500); 
          drawpixel(buttonX,buttonY ,1); 
          gotoxy(buttonX+2,buttonY); 
          setcolor(3); 
          cout<<"<----- a button  \n"; 


         } 

         cout<<"Hello world at "<< InputRecord.Event.MouseEvent.dwMousePosition.X <<" x "<< InputRecord.Event.MouseEvent.dwMousePosition.Y<<" "; 

        }// mouse 

        break; 

       case WINDOW_BUFFER_SIZE_EVENT: // scrn buf. resizing 
        ; 
        break; 

       case FOCUS_EVENT: // disregard focus events 

       case MENU_EVENT: // disregard menu events 

        break; 

       default: 
        cout<<"Unknown event type \n"; 
        break; 
     } 



     FlushConsoleInputBuffer(hin); 
    } 
    gotoxy(1,23); 
    setcolor(7); 
    clearscreen(); 
    cout<<"\n"; 
    return 0; 

} 



void gotoxy(int x, int y){ 
    COORD coord; 
    coord.X = x; coord.Y = y; 
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord); 
    return; 
} 

//***************************************************************************** 

void setcolor(WORD color){ 
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),color); 
    return; 
} 

//***************************************************************************** 


// 
//  colors: 
//  0 = Black 
//  1 = Blue 
//  2 = Green 
//  3 = Cyan 
//  4 = Red 
//  5 = Magenta 
//  6 = Yellow 
//  7 = LightGray 
//  8 = DarkGray 
//  9 = LightBlue 
//  10 = LightGreen 
//  11 = LightCyan 
//  12 = LightRed 
//  13 = LightMagenta 
//  14 = LightYellow 
//  15 = White 


// 

//***************************************************************************** 

void setForeGroundAndBackGroundColor(int ForeGroundColor,int BackGroundColor){ 
    int color=16*BackGroundColor+ForeGroundColor; 
    setcolor(color); 
} 

//***************************************************************************** 

void clearscreen(){ 
    COORD coordScreen = { 0, 0 }; 
    DWORD cCharsWritten; 
    CONSOLE_SCREEN_BUFFER_INFO csbi; 
    DWORD dwConSize; 
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); 

    GetConsoleScreenBufferInfo(hConsole, &csbi); 
    dwConSize = csbi.dwSize.X * csbi.dwSize.Y; 
    FillConsoleOutputCharacter(hConsole, TEXT(' '), dwConSize, coordScreen, &cCharsWritten); 
    GetConsoleScreenBufferInfo(hConsole, &csbi); 
    FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten); 
    SetConsoleCursorPosition(hConsole, coordScreen); 
    return; 
} 

//***************************************************************************** 

void drawpixel(unsigned char x, unsigned char y, unsigned char Color){ 
     setcolor(Color); 
     gotoxy(x,y);printf("Û"); 
} 
//***************************************************************************** 

void drawpixel2(unsigned char x, unsigned char y, unsigned char Color, char character){ 
     setcolor(Color); 
     gotoxy(x,y);printf("%c",character); 
} 

//***************************************************************************** 

void drawcircle(int x, int y, int a, int b, int color){ 
    int wx, wy; 
    int thresh; 
    int asq = a * a; 
    int bsq = b * b; 
    int xa, ya; 

    drawpixel(x, y+b, color); 
    drawpixel(x, y-b, color); 

    wx = 0; 
    wy = b; 
    xa = 0; 
    ya = asq * 2 * b; 
    thresh = asq/4 - asq * b; 

    for (;;) { 
     thresh += xa + bsq; 

     if (thresh >= 0) { 
      ya -= asq * 2; 
      thresh -= ya; 
      wy--; 
     } 

     xa += bsq * 2; 
     wx++; 

     if (xa >= ya) 
      break; 


     drawpixel(x+wx, y-wy, color); 
     drawpixel(x-wx, y-wy, color); 
     drawpixel(x+wx, y+wy, color); 
     drawpixel(x-wx, y+wy, color); 
    } 

    drawpixel(x+a, y, color); 
    drawpixel(x-a, y, color); 

    wx = a; 
    wy = 0; 
    xa = bsq * 2 * a; 

    ya = 0; 
    thresh = bsq/4 - bsq * a; 

    for (;;) { 
     thresh += ya + asq; 

     if (thresh >= 0) { 
      xa -= bsq * 2; 
      thresh = thresh - xa; 
      wx--; 
     } 

     ya += asq * 2; 
     wy++; 

     if (ya > xa) 
      break; 

     drawpixel(x+wx, y-wy, color); 
     drawpixel(x-wx, y-wy, color); 
     drawpixel(x+wx, y+wy, color); 
     drawpixel(x-wx, y+wy, color); 
    } 
} 

//***************************************************************************** 

void drawline(int x0, int y0, int x1, int y1, int color){ 
    int pix = color; 
    int dy = y1 - y0; 
    int dx = x1 - x0; 
    int stepx, stepy; 

    if (dy < 0) { dy = -dy; stepy = -1; } else { stepy = 1; } 
    if (dx < 0) { dx = -dx; stepx = -1; } else { stepx = 1; } 
    dy <<= 1;             // dy is now 2*dy 
    dx <<= 1;             // dx is now 2*dx 

    drawpixel(x0, y0,pix); 
    if (dx > dy) { 
     int fraction = dy - (dx >> 1);       // same as 2*dy - dx 
     while (x0 != x1) { 
      if (fraction >= 0) { 
       y0 += stepy; 
       fraction -= dx;        // same as fraction -= 2*dx 
      } 
      x0 += stepx; 
      fraction += dy;         // same as fraction -= 2*dy 
      drawpixel(x0, y0,pix); 
     } 
    } else { 
     int fraction = dx - (dy >> 1); 
     while (y0 != y1) { 
      if (fraction >= 0) { 
       x0 += stepx; 
       fraction -= dy; 
      } 
      y0 += stepy; 
      fraction += dx; 
      drawpixel(x0, y0,pix); 
     } 
    } 
} 

//***************************************************************************** 


void drawframe(unsigned x,unsigned y,unsigned sx,unsigned sy,unsigned char col,unsigned char col2,char text_[]){ 
    unsigned i,j,m;{ 

     m=(sx-x);      //differential 
     j=m/8;       //adjust 
     j=j-1;       //more adjustment 
     gotoxy(x,y);printf("É");  //Top left corner of drawframe 
     gotoxy(sx,y);printf("»");  //Top right corner of drawframe 
     gotoxy(x,sy);printf("È");  //Bottom left corner of drawframe 
     gotoxy(sx,sy);printf("¼");  //Bottom right corner of drawframe 

     for (i=x+1;i<sx;i++){ 
      gotoxy(i,y);printf("Í");  // Top horizontol line 
      gotoxy(i,sy);printf("Í"); // Bottom Horizontal line 
     } 

     for (i=y+1;i<sy;i++){ 
      gotoxy(x,i);printf("º");  //Left Vertical line 
      gotoxy(sx,i);printf("º"); //Right Vertical Line 
     } 

      gotoxy(x+j,y);printf(text_); //put Title 
      gotoxy(1,24); 
    } 
} 

//***************************************************************************** 

void drawfilledrectangle(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2,unsigned char bkcol){ 
    int x,y; 
    setcolor(bkcol);      //Set to color bkcol 

    for (y=y1;y<y2;y++){     //Fill Y Region Loop 
     for (x=x1;x<x2;x++) {    //Fill X region Loop 
      gotoxy(x,y);printf(" ");  //Draw Solid space 
     } 
    } 
} 

//***************************************************************************** 

void drawwindow(unsigned x,unsigned y,unsigned sx,unsigned sy, 
     unsigned char col, unsigned char col2,unsigned char bkcol,char text_[]){ 
    drawfilledrectangle(x,y,sx,sy,bkcol); 
    drawframe(x,y,sx,sy,col,col2,text_); 
} 

//***************************************************************************** 


void drawcolorpalette(){ 
    for (int i=0;i<16;i++){ 
     for (int j=0;j<16;j++){ 
      setForeGroundAndBackGroundColor(i,j); 
      gotoxy(i*4,j);printf("%d",(i*j)+1); 


     } 

    } 

} 


//*****************************************************************************