Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Showing only one image in a TSpeedButton

Posted on 2001-09-15
9
Medium Priority
?
597 Views
Last Modified: 2010-04-06
Hi

When I load a glyph into a TSpeedButton at runtime, and it contains more than one image, it wants to display them all at the same time.  How do I get the button to display only the first image?

John
0
Comment
Question by:jdthedj
9 Comments
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6484439
adjust the numglyphs property to the count of images of your bitmap
0
 
LVL 8

Expert Comment

by:TOndrej
ID: 6484442
set NumGlyphs to 4, I guess
0
 
LVL 3

Expert Comment

by:marcoszorrilla
ID: 6484445
Perhaps with this code?

These lines of code load a four-image bitmap into the Glyph property of a speed button, and specify the appropriate value for the NumGlyphs property:

SpeedButton1.Glyph.LoadFromFile('MYBITMAP.BMP');

SpeedButton1.NumGlyphs := 4;
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 3

Author Comment

by:jdthedj
ID: 6485074
Thanks for the replies.

I have tried using the NumGlyphs property, but I still find that the speedbutton tries to load all the images at once.  This is my code:

GlyphBtn[UpTo].NumGlyphs := 1;
GlyphBtn[UpTo].Glyph.LoadFromFile(DirInfo.Name);

(I am using FindFirst etc to locate the bitmaps). I also tried setting NumGlyphs after loading the image, but I still get the same result.  Any ideas?

John
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6485082
to repeat

>adjust the numglyphs property to the count of images of your bitmap

contains your bitmap 4 pictures then set NumGlyphs to 4 -> one image is shown on the speedbutton
contains your bitmap 2 pictures then set NumGlyphs to 2 -> one image is shown on the speedbutton

meikl ;-)

0
 
LVL 3

Author Comment

by:jdthedj
ID: 6485330
Thanks Meikl

How do I know how many images there are in the bitmap?

John
0
 
LVL 1

Accepted Solution

by:
Fraction earned 80 total points
ID: 6485773
Suppose the glyphs width and height are the same, then you might do something like this:

NumGlyph := round(Bitmap.Width / Bitmap.Height);
0
 
LVL 3

Author Comment

by:jdthedj
ID: 6491729
Hello Fraction

I never realised it would be so complicated!  You gave me the right idea.  I divided the width by 24 (an average size) and used the integer result as the answer.  It seem to work OK.  I am surprised there is not a property called ImageCount or something.

John
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6492527
i guessed you more clever, my mistake
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

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

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…
This is an update to some code that someone else posted on Experts Exchange. It is an alternate approach, I think a little easier to use, & makes sure that things like the Task Bar will update.
Look below the covers at a subform control , and the form that is inside it. Explore properties and see how easy it is to aggregate, get statistics, and synchronize results for your data. A Microsoft Access subform is used to show relevant calcul…
When cloud platforms entered the scene, users and companies jumped on board to take advantage of the many benefits, like the ability to work and connect with company information from various locations. What many didn't foresee was the increased risk…
Suggested Courses
Course of the Month11 days, 12 hours left to enroll

564 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