IG_dspl_scroll

This function sets the scroll parameters (not scroll position) and allows you to enable and disable the vertical and horizontal scrollbars associated with a given window.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_dspl_scroll_set( [IN] HIGEAR hIGear, [IN] DWORD dwGrpID, [IN] HWND hWnd, [IN] AT_MODE nScrollMode, [IN] INT nXPage, [IN] INT nYPage, [OUT] LPAT_SCROLL_INFO lpScrollInfo );

Arguments:

Name	Type	Description
hIGear	HIGEAR	ImageGear handle of image.
dwGrpID	DWORD	Identifier of group in which to set scroll options.
hWnd	HWND	Handle of window where image is drawn.
nScrollMode	AT_MODE	New value of ScrollbarMode to set. Possible value is a combination of the horizontal scrollbar flag: IG_DSPL_HSCROLLBAR_AUTO IG_DSPL_HSCROLLBAR_ENABLE IG_DSPL_HSCROLLBAR_DISABLE and the vertical: IG_DSPL_VSCROLLBAR_AUTO IG_DSPL_VSCROLLBAR_ENABLE IG_DSPL_VSCROLLBAR_DISABLE
nXPage	INT	New value of scrolling page width. If 0 then it will be calculated from ClipRect.
nYPage	INT	New value of scrolling page height. If 0 then it will be calculated from ClipRect.
lpScrollInfo	LPAT_SCROLL_INFO	Where to copy new scroll parameters. If NULL then the parameter is ignored.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++.

Example:

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HIGEAR hIGear; /* HIGEAR handle of image / DWORD nGrpID; / display group identifier / AT_SCROLL_INFO ScrollInfo; / scroll info / ... / always hide both scrollbars */ IG_dspl_scroll_set( hIGear, nGrpID, hWnd, IG_DSPL_HSCROLLBAR_DISABLE\|IG_DSPL_VSCROLLBAR_DISABLE, 0, 0, &ScrollInfo ); ...

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HIGEAR           hIGear;      /* HIGEAR handle of image  */ 
DWORD           nGrpID;        /* display group identifier   */
AT_SCROLL_INFO  ScrollInfo;      /* scroll info  */
 ...
/* always hide both scrollbars */
IG_dspl_scroll_set( hIGear, nGrpID, hWnd,
IG_DSPL_HSCROLLBAR_DISABLE|IG_DSPL_VSCROLLBAR_DISABLE, 0, 0,  &ScrollInfo );
 ...