This function returns the current zoom values.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_dspl_zoom_get(
[IN] HIGEAR hIGear,
[IN] DWORD dwGrpID,
[IN] HWND hWnd,
[OUT] LPAT_MODE lpnZoomMode,
[OUT] LPDOUBLE lpdblHZoom,
[OUT] LPDOUBLE lpdblVZoom
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Arguments:
| Name | Type | Description |
| hIGear | HIGEAR | ImageGear handle of image. |
| dwGrpID | DWORD | Identifier of the group from which to obtain zoom parameters. |
| hWnd | HWND | Handle of window where the image is drawn. |
| lpnZoomMode | LPAT_MODE | Pointer to where ZoomMode is to be received. If NULL, then this parameter is ignored. |
| lpdblHZoom | LPDOUBLE | Where to return the calculated horizontal zoom value. This value is always calculated whether or not the horizontal zoom is fixed. |
| lpdblVZoom | LPDOUBLE | Where to return the calculated vertical zoom value. This value is always calculated whether or not the vertical zoom is fixed. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
All pixel formats supported by ImageGear Professional.
Sample:
Display, MFC, Filters, ASCII, Panning, ArtX, Vector
Example:
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HIGEAR hIGear; /* HIGEAR handle of image */ DWORD nGrpID; /* display group identifier */ AT_MODE nZoomMode; /* zoom mode */ DOUBLE dHZoom; /* horizontal zoom value */ DOUBLE dVZoom; /* vertical zoom value */ ... IG_dspl_zoom_get( hIGear, nGrpID, hWnd, &nZoomMode, &dHZoom, &dVZoom ); ... |
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