IG_GUI_magnify_attribute

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

Declaration:

	Copy Code
AT_ERRCOUNT ACCUAPI IG_GUI_magnify_attribute_get( HWND hwndMag, AT_MODE nAttributeID, 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	LPVOID	The value currently assigned to the attribute will be returned here. 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

LPVOID

The value currently assigned to the attribute will be returned here. 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.