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I can't see any way to do this, other than to call the Windows functions instead, which means setting up pen handles, etc. Is this the best alternative available to me? Can anyone help me get started, or suggest an alternate?
I have actually written a functional replacement for Lineto, using Qwickwin routines, that draws a filled rectangle (long, very thin, 4-node polygon) as a substitute for the simple, 1-pixel-wide line. But surely there must be a better way.
Daryl
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This (changing the width of a line in Quickwin)has been requested from our compiler before. I will associate this forum post with the request so if it is implemented you will be informed.
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Wendy
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So I am pursuing thecalling of the API functions for lineto, polygon, etc. I have to learn the lingo for creating a pen, selecting the pen, etc.
The on-line documentation strongly hints that this is possible from Quickwin (e.g., it warns I have to rename the functions MSFWIN$LineTo, etc), though I can find no good examples to follow. My experimentation so far does not work. And, Lawrence's book clearly states that these API calls cannot be used from Quickwin.
Can someone advise? I don't want to bark up this tree any more if it's not going to get me anywhere.
Daryl
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Wendy
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Wendy
Attaching or including files in a post
SETLINEWIDTHQQ
Subroutine
SETLINEWIDTHQQ (W*32, W*64)
Graphics subroutine: Set the width of the (solid) line drawn using any of the supported graphics functions.
Module
USE IFQWIN
Syntax
CALL SETLINEWIDTHQQ(x)
Where,
x is of type INTEGER and represents any scalar integer in value.
Results
Sets the line width to the scalar passed as argument.
SETLINEWIDTHQQ affects the drawing of straight lines using functions - LINETO, POLYGON, LINETOAR, LINETOAREX, RECTANGLE and that of curved lines as in ARC, ELLIPSE, or PIE.
Compatibility
Standard Graphics Quickwin Graphics Lib
GETLINEWIDTHQQ
Function
GETLINEWIDTHQQ (W*32, W*64)
Graphics function: Get the current line width or the line width set by the last call to SETLINEWIDTHQQ.
Module
USE IFQWIN
Syntax
result = GETLINEWIDTHQQ()
where,
result is of type INTEGER. The result contains the current width of the line.
Default behavior
If there is no call to SETLINEWIDTHQQ in the program (or on that particular graphics window), it returns 1. (The default width of a line drawn by any graphics routine is 1 pixel.)
Compatibility
Standard Graphics Quickwin Graphics Lib
Current Limitation
ThenWidthargument in the CreatePen() API is the width used to draw the lines or borders of a closed shape. A cosmetic pen can have a width of only 1 pixel. If you specify a higher width, it would be ignored. A geometric pen can have a width of 1 or more pixels but the line can only be solid or null. This means that, if you specify the style asPS_DASH,PS_DOT,PS_DASHDOT, orPS_DASHDOTDOT but set a width higher than 1, the line would be drawn asPS_SOLID.
http://msdn.microsoft.com/en-us/library/dd162797(v=VS.85).aspx
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Neels
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(1) I can now draw lines of variable width without resorting to my clumsy (and imperfect) workaround.
(2) We talked and Intel listened.
(3) Quickwin is not dead (I hope).
I'm surprised though that this new function is not covered in the online documentation, or even in the release notes. Makes me wonder--has anything else been added that we don't know about?
Is Intel really committed to improving Quickwin? I have a modest list of enhancements (as I'm sure others do) and it would be nice to know if there is any hope...
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Sorry we missed including it in the documentation/release notesfor 12.1, it will be in the next release documentation. Yes post any feature requests for Quick Win and we can submit them for consideration.
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Wendy
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1. A fast console window.
2. Windows for which vertical and horizontal scrollbars can be obtained independently, as each is required, instead of both-or-nothing as we have now.
3. Some pre-packaged, ready-to-go common dialog boxes (e.g. GetOpenFilename, GetSaveFileName, colorpicker, fontpicker)--and include optional arguments to control where these boxes appear on the screen.
4. Ability to save a graphics window capture in vector format (emf file) in addition to the bitmap format (bmp); also a converter from bmp to tif or gif.
That's it for now. I'm sure many others have their pet peeves and will add to this list.
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1. The capability to switch the visibility of controls on and of: RetLog = DlgSet(DLG, IDC_Button_Map, .False., DLG_Visible)
2. Scrollable dialog boxes - with the mixture of todays users having anything between a 14" screen and a 27" screen with varying resolutions it is impossible to make dialog boxes that fits all unless they are scrollable.
Neels
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Thanks for the ideas on feature requests. I will be filing them and then posting the engineering numbers to track here when any discussion on their merits is concluded. I want to be sure to include any comments from multiple customers.
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Wendy
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- Enable the close dialog box of graphics windows. Why are only minimize and maximize shown?
- When you are drawing a lot you get a "flickering" image. Someone here (I think it was yugoslav) told me this is because QuickWin renders every codeline immediately. Useful would be something like this:
[bash]call initVirtualScreenQQ(unit) ! ... ! doing a lot of drawing operations ! ... call renderVirtualScreenQQ(unit) [/bash]
So QuickWin gathers all information what should be drawn im memory and then send it to the screen
- coloring Edit Control background and text
- adding a transparent (alpha) value for colors, an ARGB value instead of just RGB
Thats what comes to my mind... The most important thing for us would be the VirtualScreenQQ enhancement because this flickering is very annoying.
Markus
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What I have is not at all a general Halo replacement. It's just the library that we developed, using Halo, to do general-purpose xy graphs. And it's not nearly as general-purpose as some other libraries, but we like it because (1) it is tightly integrated with Fortran code (you don't have to print your data to a file and then call up an independent routine to plot it), and (2) it can do some important things that other plotting applications can't.
It's some time before this could be released, but I'm glad to know of any interest.
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Any updates on these requests?
Neels
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@Neels " I agree with this. Even if all I want to do is open a window at a particular location--it must first appear at a default location, then I have to move it. This is flicker. Annoying."
I wrote a simple routine using API SetWindowPos , you can then set the dialog position before it is displayed. It used to really irriitate me because I have some dialogs that frequently open and close and having moved them manually to a good location they then used to go back to the default position. I used getwinpos to save the last known location of my dialogs on close and use this next time they are popped.
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