Openfilename problem

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frankobach26

Joined: 10 Apr 2026
Posts: 11
Location: Kassel

frankobach26 27 Apr 2026, 16:28

Hello. I am building a little Editor. Have included yet a Menu too. But the openfilename causes Errors. I have No Idea whats correct Setup. Perhaps anybody has more experience. Thanks

Code:

IDM_FILE_OPEN  equ 40001
IDM_FILE_SAVE  equ 40002
IDM_FILE_EXIT  equ 40003

EM_SETSEL        = 0B1h
EM_REPLACESEL    = 0C2h
EM_SETBKGNDCOLOR = 0443h

; ============================================================
; OPENFILENAME Struktur (64‑bit)
; ============================================================

struct OPENFILENAME
{
  .lStructSize      dq ?
  .hwndOwner        dq ?
  .hInstance        dq ?
  .lpstrFilter      dq ?
  .lpstrCustomFilter dq ?
  .nMaxCustFilter   dq ?
  .nFilterIndex     dq ?
  .lpstrFile        dq ?
  .nMaxFile         dq ?
  .lpstrFileTitle   dq ?
  .nMaxFileTitle    dq ?
  .lpstrInitialDir  dq ?
  .lpstrTitle       dq ?
  .Flags            dq ?
  .nFileOffset      dw ?
  .nFileExtension   dw ?
  .lpstrDefExt      dq ?
  .lCustData        dq ?
  .lpfnHook         dq ?
  .lpTemplateName   dq ?
  .pvReserved       dq ?
  .dwReserved       dq ?
  .FlagsEx          dq ?
}

27 Apr 2026, 16:28

macomics

Joined: 26 Jan 2021
Posts: 1216
Location: Russia

macomics 27 Apr 2026, 16:52

If you are using the macro struct, you do not need to use curly braces, but rather close the structure using the macro ends. If you want to leave curly braces, then use the struc keyword.

ADD: To use the struct/ends macros, you need to include the INCLUDE/MACRO/STRUCT.INC file.

27 Apr 2026, 16:52

Core i7

Joined: 14 Nov 2024
Posts: 160
Location: Socket on motherboard

Core i7 27 Apr 2026, 16:59

Your structure is incorrect. Look in the include comdlg64.inc:

Code:

struct OPENFILENAME
  lStructSize       dd ?,?
  hwndOwner         dq ?
  hInstance         dq ?
  lpstrFilter       dq ?
  lpstrCustomFilter dq ?
  nMaxCustFilter    dd ?     ;<------
  nFilterIndex      dd ?     ;<------
  lpstrFile         dq ?
  nMaxFile          dd ?,?
  lpstrFileTitle    dq ?
  nMaxFileTitle     dd ?,?
  lpstrInitialDir   dq ?
  lpstrTitle        dq ?
  Flags             dd ?     ;<------
  nFileOffset       dw ?
  nFileExtension    dw ?
  lpstrDefExt       dq ?
  lCustData         dd ?,?
  lpfnHook          dq ?
  lpTemplateName    dq ?
ends

27 Apr 2026, 16:59

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