Drop zones in AppWindow?

Ami · 29 March 2020, 16:36

Hi,

I'm looking for an advice how to code drop areas in AppWindow, just like in IconEdit for example. Code must be OS2+ compatible.

Regards.

Thomas Richter · 29 March 2020, 17:06

Well, not really complicated. You first create an appWindow:

Code:

appWindow = AddAppWindow(APP_WINDOW_ID,NULL,window,appPort,TAG_DONE)

and within this appWindow, you create one or multiple appZones:

Code:

sourceZone       = AddAppWindowDropZone(appWindow,ZONE_SOURCE_ID,NULL,
					  WBDZA_Left  ,ng.ng_LeftEdge,
					  WBDZA_Top   ,ng.ng_TopEdge,
					  WBDZA_Width ,ng.ng_Width,
					  WBDZA_Height,ng.ng_Height,
					  TAG_DONE);

here it is taking coordinates from a newgadget structure, but this is just an implementation choice.

Warning, Dopus does not support appZones correctly.

Ami · 29 March 2020, 17:38

AddAppWindowDropZone() need V44. I need OS2.0+ compatibility (V36).

thomas · 29 March 2020, 18:49

Drop zones are only available in V44+.

You can make your window an AppWindow, then the user can drop icons anywhere in the window. You receive an AppMessage which contains the mouse coordinates. Compare them to the areas where you expect icons to be dropped.

Ami · 30 March 2020, 21:20

Ah yes, got it working now. Thanks.

29 March 2020, 16:36	#1
Ami Registered User Join Date: Sep 2014 Location: Poland Posts: 175	Drop zones in AppWindow? Hi, I'm looking for an advice how to code drop areas in AppWindow, just like in IconEdit for example. Code must be OS2+ compatible. Regards.

29 March 2020, 17:06	#2
Thomas Richter Registered User Join Date: Jan 2019 Location: Germany Posts: 3,214	Well, not really complicated. You first create an appWindow: Code: appWindow = AddAppWindow(APP_WINDOW_ID,NULL,window,appPort,TAG_DONE) and within this appWindow, you create one or multiple appZones: Code: sourceZone = AddAppWindowDropZone(appWindow,ZONE_SOURCE_ID,NULL, WBDZA_Left ,ng.ng_LeftEdge, WBDZA_Top ,ng.ng_TopEdge, WBDZA_Width ,ng.ng_Width, WBDZA_Height,ng.ng_Height, TAG_DONE); here it is taking coordinates from a newgadget structure, but this is just an implementation choice. Warning, Dopus does not support appZones correctly.

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29 March 2020, 17:38	#3
Ami Registered User Join Date: Sep 2014 Location: Poland Posts: 175	AddAppWindowDropZone() need V44. I need OS2.0+ compatibility (V36).

29 March 2020, 18:49	#4
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,985	Drop zones are only available in V44+. You can make your window an AppWindow, then the user can drop icons anywhere in the window. You receive an AppMessage which contains the mouse coordinates. Compare them to the areas where you expect icons to be dropped.

30 March 2020, 21:20	#5
Ami Registered User Join Date: Sep 2014 Location: Poland Posts: 175	Ah yes, got it working now. Thanks.

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