ImageGear Professional v18 for Mac
IG_dspl_scroll_set
| ImageGear Professional v18.1 > API Reference Guide > Core Component API Reference > Core Component Functions Reference > Display Functions > IG_dspl_scroll_set |
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.
|
Copy Code
|
|
|---|---|
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
);
|
|
| Name | Type | Description |
| hIGear | HIGEAR | ImageGear handle of image. |
| dwGrpID | DWORD | Identifier of group in which to set scroll options. |
| hWnd | HWND | Pointer to NSView or NSScrollView object where image is drawn. Pointer must be casted to non-retainable HWND type with (__bridge HWND) operator. |
| nScrollMode | AT_MODE |
New value of ScrollbarMode to set. Possible value is a combination of the horizontal scrollbar flag:
|
| 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. |
Returns the number of ImageGear errors that occurred during this function call.
All pixel formats supported by ImageGear Professional.
|
Copy Code
|
|
|---|---|
NSView* nsView = self;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, (__bridge HWND)nsView, IG_DSPL_HSCROLLBAR_DISABLE|IG_DSPL_VSCROLLBAR_DISABLE, 0, 0, &ScrollInfo ); ... |
|