ImageGear for C and C++ on Windows v19.3 - Updated
IG_GUI_magnify_window_create
This function is called to create a GUI magnify window.
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AT_ERRCOUNT ACCUAPI IG_GUI_magnify_window_create (
HIGEAR hIGear,
DWORD dwGrpID,
HWND hWndParent,
const LPSTR lpszTitle,
INT nX,
INT nY,
INT nWidth,
INT nHeight,
HWND FAR* lphWndMagnify
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| Name | Type | Description |
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| hIGear | HIGEAR | HIGEAR handle of image. |
| DwGrpID | DWORD | Identifier of the group used for drawing image in the hWndParent window. A new group will be allocated internally for drawing image in the magnify window. |
| hWndParent | HWND | Handle of Parent window. |
| lpszTitle | const LPSTR | Title of Magnify Window. |
| nX | INT | X position of upper left corner of Magnify window. |
| nY | INT | Y position of upper left corner of Magnify window. |
| nWidth | INT | Width of Magnify window. |
| nHeight | INT | Height of Magnify window. |
| lphWndMagnify | HWND FAR* | Far pointer to HWND object to hold Magnify window handle. |
Returns the number of ImageGear errors that occurred during this function call.
All pixel formats supported by ImageGear for C and C++.
Magnify, Display, GUI Windows
See the example for function IG_GUI_magnify_track_mouse().
When the mouse is moved about in such a window with the left button held down, a small rectangle is dragged and the portion of the image inside the rectangle can be displayed (magnified) in the parent image window.