ImageGear for C and C++ on Windows v19.0
IG_TWAIN_source_get_first
| API Reference Guide > TWAIN Component API Reference > TWAIN Component Functions Reference > Source Functions > IG_TWAIN_source_get_first |
This function returns the name of the first Data Source detected.
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AT_ERRCOUNT ACCUAPI IG_TWAIN_source_get_first(
HWND hMainWnd,
LPSTR lpszDSName
);
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| Name | Type | Description |
|---|---|---|
| hMainWnd | HWND | The handle of the main window in the application. |
| lpszDSName | LPSTR | Returns a string identifying which Data Source is the first one detected. You must allocate the memory for this string. Please allow 34 characters per the TWAIN restriction. |
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.
Used in conjunction with IG_TWAIN_source_get_next(), you can implement your own version of TWAIN's "SelectSource" dialog box, adding customized enhancements or sophistication.