Rabu, 29 Juni 2016

Contoh 23 (Coding) dan Gambarnya

#include <stdlib.h>
#include <time.h> /* Prototype fungsi randomize dan rand */
#include "screen.cpp"
#include "keyboard.cpp"
#define MOUSE_INT 0x33
#define MOUSE_LEFT_CLICK 0x01
#define USHORT unsigned short int
UCHAR detectMouse(UCHAR *btn);
void getMousePos(USHORT *row, USHORT *col, UCHAR *btn);
void setMousePos(USHORT row, USHORT col);
void showMouse(void);
int main(void)
{
Screen *layar = new Screen();
Keyboard *tombol = new Keyboard(layar);
USHORT baris, kolom;
UCHAR status, button, str[5];
status = detectMouse(&button);
layar->setMode(0x03);
layar->setCursorPos(4, 14);
tombol->hideCursor();
if (!status)
{
layar->writeString("Mouse tidak siap! Tekan ENTER ...");
tombol->getString(str, 0);
delete tombol; delete layar;
exit(EXIT_FAILURE);
}
layar->writeString("Klik kiri untuk berhenti.");
showMouse(); /* Tampilkan pointer mouse */

randomize(); /* Inisialisasi angka random */
while (TRUE)
{
baris = rand() % 480;
kolom = rand() % 640;
setMousePos(baris, kolom);
getMousePos(&baris, &kolom, &button);
if (button == MOUSE_LEFT_CLICK) break;
}
delete tombol; delete layar;
return EXIT_SUCCESS;
}
UCHAR detectMouse(UCHAR *btn)
{
UCHAR state, button;
asm mov ah, 0x00; /* Register AH = 0 */
asm mov al, 0x00; /* Register AL = 0, AH:AL = 0:0 */
asm int MOUSE_INT; /* Laksanakan interupsi 0x33 */
asm mov state, al; /* Salin nilai AL ke state */
asm mov button, bl; /* Salin nilai BL ke button */
*btn = button;
return state;
}
void getMousePos(USHORT *row, USHORT *col, UCHAR *btn)
{
USHORT x, y;
UCHAR button;
asm mov ah, 0x00; /* Register AH = 0 */
asm mov al, 0x03; /* Register AL = 3, AH:AL = AX = 3 */
asm int MOUSE_INT; /* Lakukan interupsi 0x33 */
asm mov x, cx; /* Salin nilai register CX ke x */
asm mov y, dx; /* Salin nilai register DX ke y */
asm mov button, bl; /* Salin nilai reg. DL ke button */
*row = y; *col = x;
*btn = button;
return;
}
void setMousePos(USHORT row, USHORT col)
{
asm mov ax, 0x0004; /* Register AX = 4 */
asm mov cx, col; /* Salin nilai col ke register CX */
asm mov dx, row; /* Salin nilai row ke register DX */
asm int MOUSE_INT; /* Pindahkan posisi pointer mouse */
return;

}
void showMouse(void)
{
asm mov ah, 0x00; /* Register AH = 0 */
asm mov al, 0x01; /* Register AL = 1, AH:AL = AX = 1 */
asm int MOUSE_INT; /* Tampilkan pointer mouse */
return;
}


Gambarnya Sebagai Berikut :



Penjelasannya : 


Fungsi setMousePos pada program contoh23.cpp diatas digunakan untuk memindahkan pointer mouse. Fungsi setMousePos menerima parameter row dan col yang bertipe unsigned integer yang dikrimkan secara nilai. Parameter row digunakan untuk menentukan posisi vertikal pointer mouse, sedangkan parameter col digunakan untuk menentukan posisi horizontal mouse. Program contoh23.cpp baru berhenti ketika pengguna menekan tombol kiri mouse.

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