Title: How to determine if Macromedia Flash plugin is installed
program SeekFlash;
uses
Forms, Windows, INIFiles, SysUtils, Dialogs, ShellApi;
{$R *.RES}
type
TVersionInfo = record
dwSignature,
dwStrucVersion,
dwFileVersionMS,
dwFileVersionLS,
dwProductVersionMS,
dwProductVersionLS,
dwFileFlagsMask,
dwFileFlags,
dwFileOS,
dwFileType,
dwFileSubtype,
dwFileDateMS,
dwFileDateLS: DWORD;
end;
var
//Reg:TRegistry;
Ini: TIniFile;
Text: array[1..4] of string;
AppPath, IniFile, MySec: string;
SetupFile, RunFile, SetupClass: string;
VersionStr, BrowserStr: string;
{RegSubKey,} OpenBrowser, PlugInName, UseExt: string;
MainVersion: Word;
// FoundOne :Boolean;
PVer, DPchar, POpenBrowser: PChar;
MyPoint: Pointer;
PLen: Cardinal;
version: ^TVersionInfo;
DumD: DWORD;
LWord, HWord: Word;
CheckHandle: Hwnd;
//---------------------------
//Gets the Plugin (file-) Version
//---------------------------
procedure GetVersion(pluginName: string);
begin
DPChar := StrAlloc(255);
DPchar := PChar(PluginName);
PVer := StrAlloc(getFileVersionInfoSize(DPchar, Plen));
getFileVersionInfo(DPChar, 0, 255, PVer);
VerQueryValue(Pver, '\', MyPoint, Plen);
Version := myPoint;
dumD := Version.dwFileVersionMS;
hword := dumD shr 16;
lword := dumD and 255;
MainVersion := hword;
VersionStr := IntToStr(Hword) + '.' + IntToStr(LWord);
dumD := Version.dwFileVersionLs;
hword := dumD shr 16;
lword := dumD and 255;
versionStr := versionStr + '.' + IntToStr(Hword) + '.' + IntToStr(lWord);
end;
begin
appPath := extractFileDir(Application.exeName);
// runFile:= 'test.htm';
//runFile must be a html File to determin wich browser(NC or IE) is used
POpenBrowser := StrAlloc(255);
FindExecutable(PChar(extractFileName(runFile)),
PChar(extractFileDir(runFile)), POpenBrowser);
OpenBrowser := POpenBrowser;
if not Fileexists(openBrowser) then
begin
MessageDlg(Text[4], mtInformation, [mbOK], 0);
halt;
end;
//set the FileLocations for Netscape or IE
if Pos('NETSCAPE.EXE', uppercase(trim(OpenBrowser))) 0 then
begin //found Netscape
BrowserStr := 'Netscape Comunicator';
PlugInName := Copy(OpenBrowser, 1, Pos('NETSCAPE.EXE',
uppercase(trim(OpenBrowser))) - 1);
PluginName := PlugInName + 'Plugins\NPSWF32.dll';
end
else
//found IEExplorer
begin
BrowserStr := 'Internet Explorer';
DPChar := StrAlloc(255);
GetSystemDirectory(DPChar, 255);
PluginName := DPChar + '\Macromed\Flash\swflash.ocx';
DPChar := nil;
end;
GetVersion(pluginName);
//returned Version Number, may be checked
while mainVersion 4 do
begin
if messagedlg(Text[2], mtInformation, [mbYes, mbNo], 0) = 6 then
begin
//installFlash;
end
// if message
else
halt;
getVersion(pluginName);
end; // while mainVer
end.