/// <summary>
/// Check Version number of Ghostscript.
/// </summary>
/// <param name="intRevision"></param>
/// <returns></returns>
public bool CheckVersion(int iVersion)
{
bool bCheckVersion = false;
try
{
gsapi_revision_t udtGSRevInfo = new gsapi_revision_t();
gsapi_revision(ref udtGSRevInfo, 16);
if (udtGSRevInfo.revision == iVersion)
bCheckVersion = true;
}
catch (Exception ex)
{
throw ex;
}
return bCheckVersion;
}
public static extern int gsapi_revision([In, Out] gsapi_revision_t revision, int len);
public GhostScript(string libraryPath)
{
// Check Library Path contains GhostScript DLL
if (!File.Exists(Path.Combine(libraryPath, GSDLL32)))
{
System.Diagnostics.Debug.WriteLine("GhostScriptDllNotFound Exception raised");
throw (new GhostScriptException((int)ReturnCode.GhostScriptDllNotFound, GetGSErrorMessage((int)ReturnCode.GhostScriptDllNotFound)));
}
// Get the GhostScript Version Info
// Note: This also checks that the GhostScript DLL is available
_VersionInfo = GetVersion();
System.Diagnostics.Debug.WriteLine("GhostScript Revision = " + _VersionInfo.Revision.ToString());
InitializePrivateMembers();
_Handle = LoadLibrary(Path.Combine(libraryPath, "gsdll32.dll"));
System.Diagnostics.Debug.WriteLine("GhostScript Handle = " + _Handle.ToString());
}
public gsapi_revision_t GetVersion()
{
try
{
gsapi_revision_t revisionInfo = new gsapi_revision_t();
gsapi_revision(revisionInfo, Marshal.SizeOf(revisionInfo));
return revisionInfo;
}
catch (System.DllNotFoundException)
{
throw (new GhostScriptException((int)ReturnCode.UnableToLoadGhostScriptDll, GetGSErrorMessage((int)ReturnCode.UnableToLoadGhostScriptDll)));
}
}
private static extern int gsapi_revision(/*[In, Out]*/ ref gsapi_revision_t revision, int len);
/// <summary>
/// Get and display Version details of Ghostscript.
/// </summary>
/// <param name="intRevision"></param>
/// <returns></returns>
public void GetVersion()
{
try
{
gsapi_revision_t udtGSRevInfo = new gsapi_revision_t();
gsapi_revision(ref udtGSRevInfo, 16);
MessageBox.Show("Revision = " + udtGSRevInfo.revision.ToString() + "\n" +
"RevisionDate = " + udtGSRevInfo.revisiondate.ToString() + "\n" +
"Product = " + udtGSRevInfo.product + "\n" +
"Copyright = " + udtGSRevInfo.copyright,
"Ghostscript",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
catch (Exception ex)
{
throw ex;
}
}
