Cheat Engine

[fl00d]

I'm working on a simple chat bot that just sends keystrokes via PostMessage(with the gg bypass). I've gotten the mouseclick to work, but i'm having trouble sending individual keystrokes:

[appalsap]

Set all the bits properly, it shows you on the PostMessage documentation.
If you don't know how, you need to learn more C.

[slippppppppp]

void SendKey(char input)
{
short key = VkKeyScan(input);
UINT scancode = MapVirtualKey(key, 0);
hhPostMessageA(lWnd, WM_KEYDOWN, key, scancode);
Sleep(10);//just incase
hhPostMessageA(lWnd, WM_CHAR, key, scancode);
Sleep(10);//just incase
hhPostMessageA(lWnd, WM_KEYUP, key, scancode);
}


Im looking at your cold and these caught my attention:
lWnd, key, scancode.
These are declared in your procedure, but your proc:

void SendKey(char input)

doesnt include these. So try replacing that with:

Void SendKey(HWND lWnd, UINT message, WPARAM key, LPARAM scancode)

[fl00d]

I can now successfully run WM_KEYDOWN without my prorgam crashing, but the other 2 messages fail.

This is what I changed:

[assaf84]

Change this:

[fl00d]

Found a solution. I guess lparam doesn't matter as much anyway, but it was a problem with one of my variables. i forgot to initialize scancode = 0x0; and setting that as the lparam works fine w/o crashing!

thanks again for all your help