Stack Overflow
Stack Overflow

Questions tagged [vcl]

This tag is used for questions regarding the Visual Component Library used in Borland/CodeGear/Embarcadero Delphi and C++Builder products as well as Python GUI apps. Do not confuse this with the Varnish Configuration Language (VCL). Use the "varnish-vcl" tag for questions related to that product.

Visual Component Library is a visual component-based object-oriented framework tightly integrated with Delphi and C++Builder. It's also available for Python as a GUI framework.

VCL components cover visual and non-visual components like:

  • Windows common controls
  • Database access components
  • Internet connection components

The component approach allows programmers to extend easily the VCL.

Resources:

1590 questions
0
votes
1 answer

Installing VCL component in Delphi & C++ Builder

I created a VCL component in Delphi XE2 and want to install it in entire RAD studio (both Delphi & C++ Builder). The problem is, if I install the component in Delphi then I get linker error like "*.obj file cannot be found" in C++ Builder. I solve…
Tracer
  • 2,544
  • 2
  • 23
  • 58
0
votes
1 answer

TeeChart X Axis Label Formatting

I’ve got my TeeChart looking pretty good, the grid lines / ticks appear where I wish and so forth (the X Axis LabelStyle is set to talAuto). Now I need to format the X Axis labels so they display a time offset rather than the data point number.…
casterle
  • 1,037
  • 2
  • 12
  • 27
0
votes
2 answers

Form moving to the back and staying active

I have a largish Delphi 6 app that I have ported to Delphi XE3. At one point the main form launches another non-modal form. Sometimes (say 50%) after a second or two the newly created form moves behind the main form. Even thought it is now at the…
Rob
  • 3,315
  • 1
  • 24
  • 35
0
votes
1 answer

Difference Design and run Time

THidepanel development is still putting many questions to me . I followed the instructions given here Other Help and Questions I designed the inner panel now to have a red color and be a bit smaller as the outer panel. If I run the component in a…
Franz
  • 1,883
  • 26
  • 47
0
votes
1 answer

Subclassing descendant of VCL TWinControl

Using pseudo funcs for subclassing: CreateSpecialHandle(TWinControl *Control, const TCreateParams &Params, const AnsiString SubClass) { ......; set Control DefWndProc to SubClass.lpfnWndProc set Control WindowHandle from…
Boki
  • 637
  • 3
  • 12
0
votes
0 answers

Delphi XE3 Bluetooth how?

Hey guys i have a problem I've been searing for a way to get Delphi to connect to a Bluetooth device but with no luck i found components "Wireless Communication Library VCL Edition" but the are not free and the demo didn't work for me well so I'm…
AirWolf
  • 597
  • 7
  • 27
0
votes
4 answers

Can I use port 80 in my VCL client-server app's

Usually I use some random port for my client-server applications in Delphi/C++ Builder. But, since I work in a building with a strong firewall policies I would like to use port 80 (TCP and/or UDP). My question is, will I have any problems in my…
Tracer
  • 2,544
  • 2
  • 23
  • 58
0
votes
1 answer

How To Get A TAnimate To Redraw Without ProcessMessages

I have a simple VCL form with a TAnimate component set to use the aviCopyFiles. The form includes the ShellAnimations unit so it works on Windows 7. On form activate, it makes the TAnimate active then starts copying files using LZCopy as part of an…
SiBrit
  • 1,460
  • 12
  • 39
0
votes
1 answer

Change the NewPage for a TcxPageControl in the PageChanging event

We use a page control to step through a selection process from orders to products. The first tab shows a list of orders, the second tab shows a list of products for the selected order, and the 3rd tab contains a list of properties for the selected…
SiBrit
  • 1,460
  • 12
  • 39
0
votes
1 answer

C++ Builder XE2: Initializing a Data Module in a dll

I'm trying to create a dll that contains a VCL data module - the idea being that various applications can all load the same dll and use the same database code. The data module itself is tested ok as part of an application - I've copied the form over…
user1898153
  • 463
  • 6
  • 12
0
votes
2 answers

Alternative to VCL on C++Builder

So I'm working at a company and they've been using VCL for GUI development since forever. I'm rather newbie at creating GUI for Windows, but I dislike the options and limitations of the VCL. So I started looking around for other alternatives, are…
diogocarmo
  • 960
  • 1
  • 11
  • 30
0
votes
1 answer

TImage width / height anchor not working

I've got a TForm which has an Event FormResize, within that function I want to draw something within my TImage. My FormResize function looks like below void __fastcall TForm1::FormResize(TObject *Sender) { // Teken de blokjes …
Niels
  • 48,601
  • 4
  • 62
  • 81
0
votes
2 answers

Which external function of windows launches a WM_SIZE?

I have a very strange problem. I use D2007 on Win7 platform. My application runs fine on the first Win7 machine (mine) but the UI doesn't refresh it correctly on a second Win7 system (a samsung tablet). I use remote debugging on the Tablet. After a…
julienf2logicells
  • 34
  • 2
0
votes
2 answers

Borland C++ localization

I am currently using Codegear RAD Studio 2007. One of my company clients' decided that he would be interested in localized version of our software (to Russian - I don't know if it matters, that we won't be able to use standard windows code page). As…
samuil
  • 5,001
  • 1
  • 37
  • 44
0
votes
2 answers

Delphi - dbcheckbox change color when reading record value

I have a dbcheckbox component I need to change its background colors to express the checked or not checked status. I need that updated when user navigate between records using dbnavigator component. The dataset is on data module and I dont want to…
zac
  • 4,495
  • 15
  • 62
  • 127
1 2 3
…
99
100