Detecting CDROM and other related questions...

Hi to all,

1) How to detect if a CDRom is inserted into the CDRom drive?
Using:

Code Sample

GetSystemInfo (CDROM, bisCDRomInserted, svResult);
if( bisCDRomInserted = FALSE) then
SprintfBox (WARNING, "CDRom warning", "CDRom drive empty! Insert CDRom and press OK");
endif;

It seems to detect the CDRom drive presence, NOT the CDRom presence.
Nevertheless the Help says:

Code Sample

GetSystemInfo (nItem, nvResult, svResult);
nItem: CDROM
nvResult: TRUE or FALSE Indicates whether a CD ROM is available.
svResult: N/A

2) In PC with more than one CDRom drive how is the simplest way to detect CDRom drive letter with inserted a CDRom (if one)?

2.1) This is my workaround to 2) problem:

Code Sample

// Create a list to hold the CDRom drive names.
lCDRom = ListCreate(STRINGLIST);
// Get CDRom drives.
if (GetValidDrivesList (lCDRom, CDROM_DRIVE, -1) < 0) then
SprintfBox (SEVERE, "CDRom Error", "Unable to detect CDRom drive!");
else
nCDRomDrive = ListCount (lCDRom);
if (nCDRomDrive <= 0) then
SprintfBox (SEVERE, "CDRom Error", "Unable to detect CDRom drive!");
elseif (nCDRomDrive > 1) then
SdShowInfoList ("CDRom Warning", "This PC have more CDRom drivers!", lCDRom);

// Help me to do this:
// put list's item into a dialog box (i.e. AskOption) and let
// the user choose the CDRom drive where he would put his CDRom(*)

else // typical situation: PC with only one CD Rom drive!
#ifdef DEBUG_LEVEL_1
SdShowInfoList ("CDRom Information", "CDRom drive letter is:", lCDRom);
#endif
ListGetFirstString (lCDRom, CDSetupRoot);
CDSetupRoot = CDSetupRoot + ":\\";
#ifdef DEBUG_LEVEL_1
SprintfBox (INFORMATION, "CDRom information", "CDRom root directory is: %s",
CDSetupRoot);
#endif
endif;
endif;

(*)browsing the Help It seems to me there is a way to do that:

Code Sample

CtrlSetList(szDialogName, nControlID, listID);
Description
The CtrlSetList function places the contents of a string list into the specified single- or multi-selection list box or combo box control. Any pre-existing contents are replaced with the items contained in listID. InstallShield places each element of the string list into each element of the list box or combo box control

But I found the implementation quite difficult, anyone can help me to better understand it?
What's a list box / combo box?
Is it possible to places the contents of a string list into a Dialog Box? (i.e. AskOption)

Thanks.
Ciao, Giuseppe

gronchi

EberhardH