ImageGear Professional DLL v18 for Windows
IG_GUI_magnify_attribute_set
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ImageGear Professional v18 > API Reference Guide > Core Component API Reference > Core Component Functions Reference > GUI Functions > GUI Magnify Functions > IG_GUI_magnify_attribute_set

Glossary Item Box

This function is used to set the various attributes of the Magnifier window.

Declaration:

  Copy Code 
AT_ERRCOUNT ACCUAPI IG_GUI_magnify_attribute_set(
        HWND hwndMag,
        AT_MODE nAttributeID,
        const LPVOID lpData
);

Arguments:

Name Type Description
hwndMag HWND Handle to the Magnifier Window created by the IG_GUI_magnify_window_create(). If a popup magnifier is being used, then specify NULL for this parameter.
nAttributeID AT_MODE One of the GUI Magnify control options defined in accucnst.h.
lpData const LPVOID

The value to assign to the attribute. The value depends on the nAttributeID value:

  • IG_GUI_MAGNIFY_POPUP_WIDTH - Width, in pixels of the window
  • IG_GUI_MAGNIFY_POPUP_HEIGHT - Height, in pixels, of the window
  • IG_GUI_MAGNIFY_POPUP_ZOOM - Zoom factor (2 = 2x, 10=10x, etc.)
  • IG_GUI_MAGNIFY_POPUP_CIRCLE - Only used for Popup window TRUE (circle) or FALSE (square) - Win32 only.

Return Value:

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

Magnify, GUI Windows

Remarks:

See the function IG_GUI_magnify_window_create().

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