Questions tagged [jvcl]

JEDI Visual Components Library (jvcl) is a collection of visual and non-visual components for Delphi, Kylix and C++ Builder. The code is donated from the JEDI community and licensed under the terms of Mozilla Public License (MPL).

JEDI Visual Components Library (jvcl) is a collection of visual and non-visual components for Delphi, Kylix and C++ Builder. The code is donated from the JEDI community and licensed under the terms of Mozilla Public License (MPL).

Link to jvcl homepage

88 questions
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define a page control as a jvcl dockserver.custom dock panel. is it possible?

I have a main form with a left panel and in the center of the form I have a page control..and I am trying to dock other forms on the page control, as I have seen on an example made by Alister Christie; the thing is that the dragging of forms into…
Cristian Vasuica
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How to drag a thumbnail from JvtThumbview?

I am writing a WYSIWYG type of editor program in which the user can drag image thumbnails onto an editor surface (TPanel) and then create a PDF by rendering the editor surface onto the PDF. On my TPanel, I have a TImage which the user can resize…
user896166
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1 answer

How to modernize the look of the TJvCaptionPanel buttons?

I use a TJvCaptionPanel in Delphi 10.4 to show a panel with a caption and buttons: (TJvCaptionPanel is part of the OpenSource JEDI Visual Component Library available from GetIt) This is the object code of the JvCaptionPanel1 object instance, so you…
user1580348
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Target IDE disabled when installing JCL/JVCL with Delphi 10.2.3

I am going through the process of installing JCL/JVCL on my machine for Delphi (10.2.3). I got the latest Jedi libraries from GitHub. I installed JCL first. When it asked if I wanted to "install the selected features" and "Do you want to keep JCL…
Ronnie W
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Loading form as overlay while function runs in background

When i call a function and it "runs" (Can be take up to 3 seconds - refresh function getting data from api server) I would like to show a loadingform as an Ajax Loading Indicator as an overlay above the main form. My previous attempts have all…
Hidden
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How do I uninstall JVCL?

I want to uninstall Jedi because it replaces my GIF handling library. Even though I uninstalled JVCL, Delphi keeps using the Jedi gif library and it keeps adding the JVGif unit to my project which adds extra compiling time.
Z80
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JvCsvDataset Error

Using Delphi XE, I have a JvCsvDataset component that is loading a CSV file which has 27 fields. When the component tries to load the file I get the following error : Too many fields, or too many long string fields in this record. You must increase…
ChuckO
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How to set breakpoint in Delphi JVCL units?

I'm debugging a Delphi code that use TJvProgramVersionCheck component from the excellent JVCL libs. So I'd like to put a breakpoint somewhere in JvProgramVersionCheck unit but it doesn't work. The breakpoint icon show a cross - not active ! I tried…
TridenT
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Alter JvLoginDialog's caption

(JVCL - JEDI) Is it possible to change the caption on JvLoginDialog1 that says "type your user name and password to enter the application" ?
user3181689
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JVCL 2.10 and Delphi 2010

Did you try using JVCL 2.10 with Delphi 2010? I have Delphi 7 project that heavily uses DB components from that library and want to move it to new Delphi. I know that migration from JVCL 2.10 to newest JVCL version will be very problematic, so it…
LukLed
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How can I add a TColor editing dialog (eg TColorDlg) to JvInspector TColor properties?

I am using JvInspector to allow editing of the properties of my class. TColor properties show up as 'clRed' etc in the JvInspector editor and are happy to accept similarly entered color names. I really want the same functionality as appears…
Brian Frost
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Delphi < 2009, unicode replacement for JvAppStorage

I'm looking for the best option to store my application settings. I decided to write own class that inherits from TPersistent which would store all the config options available. Currently I'm looking for the best way to save it - and I found…
migajek
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Modifying JvTabBar with JvTabBarXPPainter

I tried to modify properties of JvTabBar, but it does not work. I assigned JvTabBarXPPainter to JvTabBar, but it only changed "FixedTabSize" properties. All the other cannot be changed. What interests me is to change the background color and font.
user1952052
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1 answer

JvTreeView and JvCheckTreeView checkbox notification

I have set a JvTreeView.CheckBoxes to True, and the check boxes are displayed and working as expected, but on Windows XP SP3 and below, the OnNodeCheckedChange event is not fired. I googled a little, and found this issue on JVCL issue tracker, but I…
iMan Biglari
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Using JvEdit with JvDataSource raises Access Violation

I'm trying to use JvEdit and JvDataSource instead of DBEdit and DataSource. But at design time, whenever I open a form with a JvEdit on it, I get this error: Access violation at address xxxxxxxx in module 'dbrtl160.bpl. Read of address 00000000.…
iMan Biglari
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