ADDMESGINFO

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typedef struct _ADDMESGINFO
{
   L_UINT uStructSize;
   L_TCHAR * pStrMsg;
   L_UCHAR * pPassword;
   L_TCHAR * pFileName;
   L_TCHAR * pDirectory;
   LPPOINT pStart;
} ADDMESGINFO, * pADDMESGINFO;

The ADDMESGINFO structure contains information about the message being added to or extracted from the bitmap and is used by the LBitmap::ExtractMessage and LBitmap::AddMessage functions.

Member	Description
uStructSize	Size of this structure, in bytes. Use the sizeof operator to calculate this value.
pStrMsg	Pointer to text that will be added to or extracted from an image. When adding a message to a bitmap this pointer refers to the text message that will be added. If you want to add a file, set this pointer to NULL. When extracting a message from a bitmap there is no need to allocate this pointer, the extract function will allocate it if the embedded message is text, otherwise it remains NULL.
pPassword	Pointer to the password that will be used when adding the message to or extracting the message from the bitmap. To use the default password set this parameter to NULL. The default password is, "LEAD Technologies".
pFileName	Pointer to the name of the file that will be added to or extracted from an image. When adding a message to a bitmap this pointer refers to the name of the file that will be added, and the pStrMsg member must be set to NULL, otherwise this parameter has no effect. When extracting a message from a bitmap there is no need to allocate this pointer, the extract function will allocate it if the embedded message is a file otherwise it remains NULL.
pDirectory	Pointer to the full path name of the directory in which to save the extracted file. This parameter is used only by the LBitmap::ExtractMessage function. If the extracted message is a file this parameter is used to specify the path for saving the extracted file. To save the extracted file using the original path, set this parameter to NULL. If the extracted message is text this parameter has no effect.
pStart	Pointer to a structure that contains the point at which the message will be added to or extracted from the image. To use the default position set this parameter to NULL.