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Question about selecting images from Draw Widgets [message #53059]

Fri, 16 March 2007 10:05

gearoid.k
Messages: 6
Registered: March 2007

Junior Member

Hello

I am designing GUI, I have multiple draw widgets on screen at one
time. I am able to select the desired widget and find its ID but
cannot get access to the image that it is showing. For example, when a
user clicks on a draw widget, it takes that image and displays it in a
larger window. I imagine the code might look something like this:

;************begin

;Find the display widget that contains the desired image
wDISPLAY_IMAGE_1 = WIDGET_INFO(Event.top,
FIND_BY_UNAME='DISPLAY_IMAGE_1');
;Make sure something was found.
IF(wDISPLAY_IMAGE_1 GT 0)THEN BEGIN

;code to assign the variable 'image' to the contents of
DISPLAY_IMAGE_1
ENDIF

;Now find main display
wMAIN_DISPLAY = WIDGET_INFO(Event.top,
FIND_BY_UNAME='MAIN_DISPLAY');
;Make sure something was found.
IF(wMAIN_DISPLAY GT 0)THEN BEGIN

;Resize image for larger display
image = CONGRID(image, 512, 512)
TV, image

ENDIF

;***************END

I am aware I can set the u_value to the image but this does not work
if I wish to use a few different images.

Any help would be greatly appreciated.

-Ger.

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[Message index]

		Question about selecting images from Draw Widgets By: gearoid.k on Fri, 16 March 2007 10:05
		Re: Question about selecting images from Draw Widgets By: David Fanning on Mon, 19 March 2007 14:42
		Re: Question about selecting images from Draw Widgets By: gearoid.k on Fri, 23 March 2007 07:29

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