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4277 :: How to get the control ID, control handle and notification code from NMHDR structure

• kcvinu (orginal) [2018-10-04T11:35:02+02:00] view original

  Hi all, I would like to know how to get the control ID, control handle and notification code from NMHDR structure. Here is my code. Is it the right method ?

  of WM_NOTIFY :
              var tNMHDR : NMHDR = cast[NMHDR](repr(lParam))
  Run

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• kcvinu (orginal) [2018-10-04T14:33:38+02:00] view original

  Finally i got the NMHDR structure without using "repr" but i cant get the BCN_HOTITEMCHANGE code. This is my code but this if statement never resulting a true.

  of WM_NOTIFY :
              tNMHDR = cast[NMHDR](lParam)
              
              e.nCode = cast[UINT](tNMHDR.code)
              e.cnID = cast[UINT](tNMHDR.idFrom)
              e.sender = cast[HWND](tNMHDR.hwndFrom)
              echo tNMHDR.code  # This prints a number but not -1459
              if tNMHDR.code == BCN_HOTITEMCHANGE :
                  echo "Mouse Entered the Button "
  Run

  I am getting a number printed on screen with echo command when i move my mouse on the button, but that number is not the BCN_HOTITEMCHANGE number. (-1459)

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• kcvinu (orginal) [2018-10-04T22:59:48+02:00] view original

  No replies still. Don't worry, i found the answer myself. Use "LPNMHDR" instead of "NMHDR".

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