Solved

TPanel.Canvas ?

Posted on 1998-12-23
5
237 Views
Last Modified: 2010-04-04
How Can i access to The TPanel.Canvas property ?

I am writing a annual calendar component. Each day is a TPanel. It works fine, but now i want to be abble to write :
1) In the Top Left Corner, in bold : the day number
2) In the Bottom right corner, in standard style : another number (User defined)

So, how could i do ?
The source code for the component is ready to use another object for the days. But this one have to publish all Drag events (used for multi-selection)
0
Comment
Question by:helpme020897
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 7

Accepted Solution

by:
BlackMan earned 100 total points
ID: 1352702
You can't! What you can to it to create a TPanel decendant component that creates a TBitmap in it's constuctor and then put your controls on the bitmap..
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1352703
Hi helpme,

what about using TLables?

Make your own TPanel, inherit the TCustomPanel and overide the Paint method.

Regards, Zif.
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1352704
Hi blackman. See that you were first :-)
0
 
LVL 1

Expert Comment

by:Smilly
ID: 1352705
Hi there,
You can get the canvas, on almost all control like this,
you have to make your own canvas....

procedure TForm1.Button1Click(Sender: TObject);
var DC: HDC;
    Canvas: TCanvas;
begin
     DC:=GetDC(panel1.handle);
     Canvas:=TCanvas.Create;
     Canvas.Handle := DC;
     Canvas.LineTo(100,100);
     Canvas.Free;
end;

Hope this will help you....
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1352706
Smilly u also should release the DC..

ReleaseDC(Panel1.Handle, DC);

Merry Christmas!

-Viktor
--Ivanov
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
Suggested Courses
Course of the Month3 days, 19 hours left to enroll

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question