Postmessage not work with Ctrl + Key ; Shift + Key; Alt + Key; Window + Key and Shift

[akampro]

Hi
I have used Postmessage to send key for a window, but that is not work.



1. Shift // Not work

PostMessage (lHandle, WM_KEYDOWN, VK_LSHIFT, 0);

2. Shift + F5 //Not work

PostMessage (lHandle, WM_KEYDOWN, VK_LSHIFT, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_F5, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_LSHIFT, 0);

3. Ctrl + F5 // not work

PostMessage (lHandle, WM_KEYDOWN, VK_LCTRL, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_F5, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_LCTRL, 0);

4. Alt + F5 // not work

PostMessage (lHandle, WM_KEYDOWN, VK_LALT, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_F5, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_LALT, 0);

5. Window // not work

PostMessage (lHandle, WM_KEYDOWN, VK_Window, 0);

6. WINDOW + D // not work

PostMessage (lHandle, WM_KEYDOWN, VK_LWINDOW, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_D, 0);
PostMessage (lHandle, WM_KEYDOWN, VK_LWINDOW, 0);

Please help me!
Thanks

[Darchrow]

You could try to use SendKeys.

[akampro]

You could try to use SendKeys.

Thanks Darchrow:
If window not active then Sendkeys is not work. I want send key for window not active.

Thanks

[Darchrow]

You can activate it via code.

[akampro]

You can activate it via code.

Thanks Darchrow

I searched on google but not good.
Example:
1. Active window if it not active.
2. Use SendKeys, keybd_event or SendInput.
But not good, because it is discomfort to user. I want use hook mouse & keyboard.

I use Sendmessage, Postmessage, SendNotifyMessage,PostThreadMessage,PeekMessage,Se ndMessageCallback but not work

I heard there are 3 functions sendkey better, but I not found.

@ Qazzy : ALT + KEY but he is offline


Thanks

[Darchrow]

If you use SendKeys you have to activate the window and put it into the foreground otherwise it won't work.

[LordLoras]

If you are trying to make a bot for online game gameguard and some other protections block sendmessage and postmessage and you have to use external dll google it PostMessageX. Overall your code is correct but are you sure your handle is correct ? give it shot with PostMessage(handle,WM_SYSCOMMAND,SC_CLOSE,0) it should close the running application.
Try also that example:$5A = hex of Z
var
key:dword;
h:hwdn;

A:=MapVirtualKey($5A,0);
A:=A shl 16;
handle:= FindWindow('MapleStoryClass', nil);
if handle<>0 then begin
PostMessageX(Handle,WM_KEYDOWN, $5A, A);

P.S. i've also tryed to use alt key modifier but used alt + f4 for my test because i don't have an application or have with other multi hotkey and after that test it did not closed.Later when i have time ii will experiment more and share my results with you


EDIT: Your virtual keys are wrong D is 44(hex),alt is VK_MENU, left control is VK_LCONTROL and win key is VK_LWIN
full keycodes list can be found here http://msdn.microsoft.com/en-us/library/ms927178.aspx

[akampro]

Thanks LordLoras

You can share PMX.dll file. Because I searched on google. PostMessageX in PMX.dll

Thanks
Akam

[LordLoras]

here is it with list of virtual key codes i do not take any credits for creating the dll just sharing it
Download

and here is delphi code how to insert it:
function PostMessageX(
hWnd:HWND;
MSG:UINT;
WPARAM:wParam;
LPARAM:lParam):BOOL;stdcall;
external 'PMX.dll' name 'PostMessageX';

P.S. i was not able to detect if alt+key is pressed when send with postmessage.I used getkeystate function and that function did not detected when keystroke was send thoguh postmessage

[akampro]

Thanks LordLoras
I didn't set lParam parameter. You can help me.

Thanks