Thread: Mouse event in Graphics Mode (can't catch Left Click)

I have a MOUSE2.h file and MOUSE.CPP
At MOUSE.CPP, MOUSE2.h is included at header. I want catch event Left Mouse click! But not occured, i don't know why? let me know...

Here code MOUSE2.h

Code:

#include <dos.h>
#include <stdio.h>
#include <graphics.h>


  union REGS regs;
  struct SREGS sregs;

  int MouseInit(void)
  /* Ham khoi tao chuot */
	{
	  regs.x.ax=0x00;
	  int86(0x33,&regs,&regs);
	  return regs.x.ax;
	}

  int CursorList[28][34]= /* Array includes 28 mask mouse */
	{
	  // 0 : Mui ten chuan nen trang
	  0x9FFF,0x8FFF,0x87FF,0x83FF,0x81FF,0x80FF,0x807F,0x803F,
	  0x801F,0x800F,0x80FF,0x887F,0x987F,0xFC3F,0xFC3F,0xFE3F,
	  0x0000,0x2000,0x3000,0x3800,0x3C00,0x3E00,0x3F00,0x3F80,
	  0x3FC0,0x3E00,0x3600,0x2300,0x0300,0x0180,0x0180,0x0000,
	  0,0,
	  // 1 : Finger
	  0xF3FF,0xE1FF,0xE1FF,0xE1FF,0xE1FF,0xE049,0xE000,0x8000,
	  0x0000,0x0000,0x07FC,0x07F8,0x9FF9,0x8FF1,0xC003,0xE007,
	  0x0C00,0x1200,0x1200,0x1200,0x1200,0x13B6,0x1249,0x7249,
	  0x9249,0x9001,0x9001,0x8001,0x4002,0x4002,0x2004,0x1FF8,
	  0,0,
          //............
	  // 27 


	};

  void SetMouseType(int MType)
  /* Dat kieu con tro chuot theo cac mang ve chuot tren */
	{
	   regs.x.ax = 0x09;
	   regs.x.bx = CursorList[MType][32]; // Diem nong theo truc x
	   regs.x.cx = CursorList[MType][33]; // Diem nong theo truc y
	   sregs.es  = FP_SEG(CursorList[MType]);
	   regs.x.dx = FP_OFF(CursorList[MType]);
	   int86x(0x33,&regs,&regs,&sregs);
	}

  void SetMouseShowIn(int L,int T,int R,int B)
  /* Dat toa do di chuyen chuot chi trong vung */
	{
	  if((B<=T)||(R<=L)) return;
	  regs.x.ax = 0x07;
	  regs.x.cx = L;
	  regs.x.dx = R;
	  int86(0x33,&regs,&regs);
	  regs.x.ax = 0x08;
	  regs.x.cx = T;
	  regs.x.dx = B;
	  int86(0x33,&regs,&regs);
	}

  void SetMouseNotShowIn(int L,int T,int R,int B)
	/* Ham nay dat vung gioi han ma trong vung do con chuot do hoa duoc  */
	/* an di. Vung nay bi huy khi goi lai ham voi toa do x hoac y sau nho*/
	/* hon hoac bang x,y truoc. 					 */
	{
	  if((B<=T)||(R<=L)) return;
	  regs.x.ax=0x10;
	  regs.x.cx=L;
	  regs.x.dx=T;
	  regs.x.si=R;
	  regs.x.di=B;
	  int86(0x33,&regs,&regs);
	}

  void MouseShow(void)
  /* Hien con tro chuot */
	{
	  regs.x.ax=0x01;
	  int86(0x33,&regs,&regs);
	}

  void MouseHide(void)
  /* An con tro chuot */
	{
	  regs.x.ax=0x02;
	  int86(0x33,&regs,&regs);
	}

  void GetMouse(int *Button,int *MouseX, int *MouseY)
  /* Lay vi tri con tro chuot che do GRAPH */
	{
	  regs.x.ax=0x03;
	  int86(0x33,&regs,&regs);
	  *Button=regs.x.bx; *MouseX=regs.x.cx; *MouseY=regs.x.dx;
	}

  int  MouseLPressed(void)
  /* Test if Left Mouse clicked, return value not 0 (1) */
	{
	  regs.x.ax=0x03;
	  int86(0x33,&regs,&regs);
	  return regs.x.bx&1;
	}

  int  MouseRPressed(void)
  /* Kiem tra neu phim phai chuot bam ham tra lai gia tri khac 0 (2); */
	{
	  regs.x.ax=0x03;
	  int86(0x33,&regs,&regs);
	  return regs.x.bx&2;
	}

  int  MouseReleased(void)
  /* Kiem tra neu phim chuot da bam duoc tha ra   */
  /* ham tra lai gia tri khac 1                   */
	{
	  regs.x.ax=0x03;
	  int86(0x33,&regs,&regs);
	  if ((regs.x.bx&1)||(regs.x.bx&2)) return(0); else return(1);
	}

Here MOUSE.CPP code

Code:

#include <stdio.h>
#include <graphics.h>
#include <dos.h>
#include <conio.h>
#include "MOUSE2.h"

void main()
{
	int gd,gm;
	//int b;
	gd=gm=0;
	initgraph(&gd,&gm,"..\\BGI");
	MouseInit();
	MouseShow();
	setcolor(1);
	if (MouseLPressed()==1) //if LeftMouse clicked, draw line...
	{
		line(100,100,500,500);
	}
	
	getch();
}

I only see mouse show, then I clicked left mouse, nothing occure, why?

help me...

oh, no! I saw my teacher use mouse to click on button...

I've had problems with sub function 03h in mouse code before. Try function 05h to retrieve the press.