IG_TWAIN_source

This function loads the specified Data Source into main memory and causes its initialization.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_TWAIN_source_open( HWND hMainWnd, LPCSTR lpszDSName, AT_BOOL bShowUI );

Name	Type	Description
hMainWnd	HWND	The handle of the main window in the application.
lpszDSName	LPCSTR	The name of the Data Source to open.
bShowUI	AT_BOOL	If set to TRUE and lpszDSName is NULL a call to this function will cause Data Source Manager to display the default source selection dialog.

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

This function does not process image pixels.

If lpszDSName is NULL and bShowUI is set to TRUE, a call to this function will cause Data Source Manager to display the default source selection dialog.
If lpszDSName is NULL and bShowUI is set to FALSE, the default Data Source will be opened.
If lpszDSName is a name of an existing Data Source, the specified Data Source will be opened.

When an application is finished with the Data Source, call IG_TWAIN_source_close() to close the session between them.