IDMs for WM_COMMAND with _WinAPI_PostMessage

[r0ash]

Hey guys, MattDiesel over Stackoverflow mentioned this beautiful piece of code 

#include <WindowsConstants.au3>
#include <WinAPI.au3>

Local $IDM_FONT = 33
Local $hWindow = WinGetHandle("Untitled - Notepad")

_WinAPI_PostMessage($hWindow, $WM_COMMAND, $IDM_FONT, 0)

Local $hFontWin = WinWait("Font")
$select = ControlCommand($hFontWin, "", "ComboBox1", "GetCurrentSelection", "")
WinClose($hFontWin)

MsgBox(0,"", $select)

I realized that _WinAPI_PostMessage can trigger menu click event, even if Notepad is minimized.

How do we know what is the decimal value of *any menu item or sub-menu item*? How we know "Format > Font" menu-item is 33 as wParam to _WinAPI_PostMessage()? Have a look at snapshot.

Regards.

Edited July 19, 2017 by r0ash
typo + tags addition

[junkew]

For that you have to look in Win32 API SDK or SPY++
see for example https://www.codeproject.com/Tips/1029254/SendMessage-and-PostMessage
https://www.codeproject.com/Articles/33459/Spying-Window-Messages-from-the-Inside

 

Edited July 19, 2017 by junkew

[r0ash]

Thanks a bunch @junkew

I am using Spy++ tool for the first time, I am unable to log messages, watch, do you think I am missing something? 

Unable to display content. Adobe Flash is required.

 

Edited July 21, 2017 by r0ash