How to make a program that presses a key after a certain amount of time?

[sieg]

Say I want to leave a program running and it stops when I press F9 for instance, I'm looking for something like (and note this is just a generalization).

#include blah
using namespace std;
/wait 2 hours

/key.press = F9

return 0;

[roxmate]

well im no pro in C++ programming, in fact im still learning, but i think you should use some sort of loop in order to make your program run until certain conditions met that may cause the program to stop or quit. Maybe a while loop?

[ajh32]

@roxmate - you are correct, this is how most programs work. You need a while loop i.e.:

do
{
// main program code called:
} while (running);

the program continues to run until the Boolean variable named running is true, when the program needs to end this Boolean variable is set to false and the program ends.

[joneele]

Check this out

#include<iostream>
#include<windows.h>

int main()
{
	keybd_event(VK_F9,0,0,0);
}

VK_NUMPAD7 	0x67 	VK_BACK 	0x08
VK_NUMPAD8 	0x68 	VK_TAB 	0x09
VK_NUMPAD9 	0x69 	VK_RETURN 	0x0D
VK_MULTIPLY 	0x6A 	VK_SHIFT 	0x10
VK_ADD 	0x6B 	VK_CONTROL 	0x11
VK_SEPARATOR 	0x6C 	VK_MENU 	0x12
VK_SUBTRACT 	0x6D 	VK_PAUSE 	0x13
VK_DECIMAL 	0x6E 	VK_CAPITAL 	0x14
VK_DIVIDE 	0x6F 	VK_ESCAPE 	0x1B
VK_F1 	0x70 	VK_SPACE 	0x20
VK_F2 	0x71 	VK_END 	0x23
VK_F3 	0x72 	VK_HOME 	0x24
VK_F4 	0x73 	VK_LEFT 	0x25
VK_F5 	0x74 	VK_UP 	0x26
VK_F6 	0x75 	VK_RIGHT 	0x27
VK_F7 	0x76 	VK_DOWN 	0x28
VK_F8 	0x77 	VK_PRINT 	0x2A
VK_F9 	0x78 	VK_SNAPSHOT 	0x2C
VK_F10 	0x79 	VK_INSERT 	0x2D
VK_F11 	0x7A 	VK_DELETE 	0x2E
VK_F12 	0x7B 	VK_LWIN 	0x5B
VK_NUMLOCK 	0x90 	VK_RWIN 	0x5C
VK_SCROLL 	0x91 	VK_NUMPAD0 	0x60
VK_LSHIFT 	0xA0 	VK_NUMPAD1 	0x61
VK_RSHIFT 	0xA1 	VK_NUMPAD2 	0x62
VK_LCONTROL 	0xA2 	VK_NUMPAD3 	0x63
VK_RCONTROL 	0xA3 	VK_NUMPAD4 	0x64
VK_LMENU 	0xA4 	VK_NUMPAD5 	0x65
VK_RMENU 	0xA5 	VK_NUMPAD6 	0x66

edit:

#include<iostream>
#include<windows.h>

int main()
{
        Sleep(999999) //waiting time
	keybd_event(VK_F9,0,0,0);
}

[thejman250]

- I believe that there is a sleep() function in c or c++ that you could make use of.

[Dy7SLyTq]

mmmhhhhhmmm. its in cstdlib. and it works on linux to