IG_GUI_magnify_attribute

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.

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().