The following constants define all the possible error code values that Xceed Streaming Compression control methods can produce. The declarations for these error codes are built into the library's "Type Library" (see the EXCError enumeration) and should automatically be accessible by your code.
Visual Basic users should use the Err object in their error handling code. It provides a textual description of the error code when needed.
Delphi users can trap the EOleException exception (include "comobj" in your unit’s Uses clause) and access the any of the exception object's properties for information about the error.
| Constant | Value | Description |
|---|---|---|
| S_OK | 0 | The method call completed successfully. |
| E_INVALIDARG | 0x80070057 | An invalid parameter was passed to a method call. |
| E_OUTOFMEMORY | 0x8007000E | Not enough memory or system resources available. |
| E_POINTER | 0x80004003 | A NULL pointer was passed to a method's [out] parameter. |
| E_UNEXPECTED | 0x8000FFFF | Unexpected condition occurred. Contact Xceed support! |
| Constant | Value | Description |
|---|---|---|
| cerSuccess | 0 | The operation completed successfully. |
| Constant | Value | Description |
|---|---|---|
| cerNotLicensed | 0x80043001 | The license key required to use the Xceed Streaming Compression Library was either not found, is invalid, or is an expired free trial license key. See the License method for details. |
| cerSessionOpened | 0x80043002 | The control is already performing another compression session. |
| cerInitCompression | 0x80043003 | Could not initialize the compression engine. Contact Xceed support if you get this error. |
| cerCompression | 0x80043004 | The data could not be compressed. Contact Xceed support if you get this error. |
| cerDataRemaining | 0x80043005 | Unexpected extra data was found at the end of the compressed stream. |
| cerUnsupportedDataFormat | 0x80043006 | The data format is not supported. |
| cerUnsupportedEncryptionMethod | 0x80043007 | The encryption method is not supported for this compressed data format or method. |
| cerUnsupportedCompressionMethod | 0x80043008 | The compression method is not supported. |
| cerInvalidDataFormat | 0x80043009 | Invalid data format. |
| cerInvalidCompressionMethod | 0x8004300A | Invalid compression method. |
| cerInvalidCompressionLevel | 0x8004300B | Invalid compression level. |
| cerInvalidChecksumType | 0x8004300C | Invalid CRC type. |
| cerInvalidHeader | 0x8004300D | The header information is invalid. |
| cerInvalidHeaderSignature | 0x8004300E | The header signature does not match the expected signature. |
| cerInvalidFooter | 0x8004300F | The footer information is invalid. |
| cerNotEnoughHeaderSpace | 0x80043010 | There is not enough space to write the header. |
| cerNotEnoughFooterSpace | 0x80043011 | There is not enough space to write the footer. |
| cerInvalidChecksum | 0x80043012 | The CRC or Adler-32 verification failed. The data may be corrupted. |
| cerInvalidHeaderChecksum | 0x80043013 | The CRC or Adler-32 verification for the header failed. The header may be corrupted. |
| cerInvalidSize | 0x80043014 | The reported original size differs from the uncompressed data size. |
| cerInvalidFileProcessing | 0x80043015 | Invalid file processing action for this method call. |
| cerInvalidAction | 0x80043016 | The file processing action is not supported for this method. |
| cerEmptyFile | 0x80043017 | The specified source file is empty. |
| cerInvalidFileOffset | 0x80043018 | The file offset is beyond the end of file. |
| cerReadFile | 0x80043019 | Cannot read data from the source file. |
| cerWriteFile | 0x8004301A | Cannot write data to the destination file. |
| cerFileNotFound | 0x8004301B | The specified filename does not exist. |
| cerPathNotFound | 0x8004301C | The specified path does not exist. |
| cerAccessDenied | 0x8004301D | Access to the specified file has been denied by the operating system. This can be a file permission error. |
| cerAlreadyInUse | 0x8004301E | The file is already in use. |
| cerInvalidFileName | 0x8004301F | The file name is invalid. |
| cerDiskFull | 0x80043020 | The disk is full. |
| cerAlreadyExists | 0x80043021 | The destination file already exists. |
| cerAccessingDrive | 0x80043022 | Error accessing the specified drive. |
| cerOpenFileForReading | 0x80043023 | Unknown error occurred while trying to open the source file for reading. |
| cerOpenFileForWriting | 0x80043024 | Unknown error occurred while trying to open the destination file for writing. |
| cerEmptyFileName | 0x80043025 | The filename is empty. |
| cerFileToBig | 0x80043026 | The file size is greater than 4.2 gigs. |
| cerInternalError | 0x80043FFF | An unexpected error occurred. Please contact Xceed support. |