If I understand well, you want to display a standard File Identification Dialog (so the user can choose a specific file), then get the chosen file name.
Here's a few functions that'll do the trick:
rem show the file identification dialog
function getFileName(FileBoxTitle$,FileFilter$)
load dll "user32.dll",1
load dll "kernel32.dll",2
load dll "comdlg32.dll",3
rem Memblock Table
OFN_MB = 1
PathBuffer_MB = 2
FileFilter_MB = 3
FileBoxTitle_MB = 4
rem Offset Table OPENFILENAME Struct
lStructSize = 0
hwndOwner = 4
hInstance = 8
lpstrFilter = 12
lpstrCustomFilter = 16
nMaxCustFilter = 20
nFilterIndex = 24
lpstrFile = 28
nMaxFile = 32
lpstrFileTitle = 36
nMaxFileTitle = 40
lpstrInitialDir = 44
lpstrTitle = 48
Flags = 52
nFileOffset = 56
nFileExtension = 58
lpstrDefExt = 60
lCustData = 64
lpfnHook = 68
lpTemplateName = 72
StructEnd = 76
rem OPENFILENAME Flag Table
OFN_ALLOWMULTISELECT = 512:rem 0x00000200
OFN_CREATEPROMPT = 8192:rem 0x00002000
OFN_ENABLEHOOK = 32:rem 0x00000020
OFN_ENABLETEMPLATE = 64:rem 0x00000040
OFN_ENABLETEMPLATEHANDLE = 128:rem 0x00000080
OFN_EXPLORER = 524288:rem 0x00080000
OFN_EXTENSIONDIFFERENT = 1024:rem 0x00000400
OFN_FILEMUSTEXIST = 4096:rem 0x00001000
OFN_HIDEREADONLY = 4:rem 0x00000004
OFN_LONGNAMES = 2097152:rem 0x00200000
OFN_NOCHANGEDIR = 8:rem 0x00000008
OFN_NODEREFERENCELINKS = 1048576:rem 0x00100000
OFN_NOLONGNAMES = 262144:rem 0x00040000
OFN_NONETWORKBUTTON = 131072:rem 0x00020000
OFN_NOREADONLYRETURN = 32768:rem 0x00008000
OFN_NOTESTFILECREATE = 65536:rem 0x00010000
OFN_NOVALIDATE = 256:rem 0x00000100
OFN_OVERWRITEPROMPT = 2:rem 0x00000002
OFN_PATHMUSTEXIST = 2048:rem 0x00000800
OFN_READONLY = 1:rem 0x00000001
OFN_SHAREAWARE = 16384:rem 0x00004000
OFN_SHOWHELP = 16:rem 0x00000010
rem FileBox Info
FileBoxFlags = OFN_EXPLORER + OFN_FILEMUSTEXIST + OFN_PATHMUSTEXIST + OFN_LONGNAMES + OFN_HIDEREADONLY + OFN_NONETWORKBUTTON
PathBufferSize = 256
hWnd = call dll(1,"GetActiveWindow")
hMod = call dll(2,"GetModuleHandleA",0)
rem Create Memblock Struct
make memblock OFN_MB,StructEnd
make memblock PathBuffer_MB,PathBufferSize
make memblock FileFilter_MB,len(FileFilter$)
make memblock FileBoxTitle_MB,len(FileBoxTitle$)
OFN = get memblock ptr(OFN_MB)
PathBuffer = get memblock ptr(PathBuffer_MB)
FileFilter = get memblock ptr(FileFilter_MB)
FileBoxTitle = get memblock ptr(FileBoxTitle_MB)
rem Dump Strings to Memblock
dump(FileFilter_MB,FileFilter$)
dump(FileBoxTitle_MB,FileBoxTitle$)
rem Write to OPENFILENAME Struct
write memblock dword OFN_MB,lStructSize,StructEnd
write memblock dword OFN_MB,hWndOwner,hWnd
write memblock dword OFN_MB,hInstance,hMod
write memblock dword OFN_MB,lpstrFilter,FileFilter
write memblock dword OFN_MB,lpstrFile,PathBuffer
write memblock dword OFN_MB,nMaxFile,PathBufferSize
write memblock dword OFN_MB,Flags,FileBoxFlags
write memblock dword OFN_MB,lpstrTitle,FileBoxTitle
rem Open FileBox
call dll 3,"GetOpenFileNameA",OFN
result$ = getstr(PathBuffer_MB)
rem Delete Memblock Struct
delete memblock OFN_MB
delete memblock PathBuffer_MB
delete memblock FileFilter_MB
delete memblock FileBoxTitle_MB
delete dll 1
delete dll 2
delete dll 3
endfunction result$
rem fonctions utilisées pour l'identification d'une fichier
function dump(m,s$)
for p=1 to len(s$)
b=asc(mid$(s$,p))
if b=asc("^") then b=0
write memblock byte m,p-1,b
next p
endfunction
function getstr(m)
p=0:s$=""
do
b=memblock byte(m,p)
if b=0 then exit
s$=s$+chr$(b)
inc p
loop
endfunction s$
Copy all this at the end of your code. To call the dialog, insert
"filename$ = getFileName(FileBoxTitle$,FileFilter$)" in your code.
- FileBoxTitle$ is the title of the dialog, with a character "^" at the end.
- FileFilter$ determines what kind of file the user will be able to choose. It looks like this: "Image BMP, GIF, JPG^*.bmp;*.gif;*.jpg^^". The part before the first "^" is what the user will see. The part between this "^" and the "^^" at the end of the string is a list of filters (with ";" as separator).
I hope it helps
. Tell me if you have a problem...
Ideas: memories of things which did not occur yet...
