delphi-7 Questions
1
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From the documentations:
Specifies whether the drop-down closes up automatically when the user
selects an item.
I have played with this property (combined with AutoComplete and AutoDropDown) ...
5
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First of all, please forgive me for not knowing the proper terminology, I'm sure there's a very common technical name for this which I could simply Google for help - but I can't find help if I don'...
6
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I use C# basically. There I can do:
string trimmed = str.Trim('\t');
to trim tabulation from the string str and return the result to trimmed.
In delphi7 I found only Trim, that trims spaces.
...
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I faced a problem while working with procedures and strings in Delphi. The fact is that I expected to see the output string "1S2S3S4S5S6S" but the actual output is "1234S5S6". During the debug proc...
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In the Delphi IDE, the path to the Delphi installation is specified as $(DELPHI). I am wondering if there is a way to create my own path indicators, such as $(MY_LIBRARY) or something similar. I th...
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Since Delphi does not have any regular expressions library built-in, have you seen a good function to validate email addresses at least to some degree in using only Delphi RTL/VCL?
I don't want t...
Opah asked 25/8, 2010 at 12:16
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I want to write a small utility which will help me load a single 32bit bitmap (with alpha) from a EXE resource:
ImageList1.DrawingStyle := dsTransparent;
ImageList1.Handle := ImageList_LoadImage(M...
1
When compiled under Delphi 7 or Delphi XE, the code below complains
[DCC Error] Project1.dpr(25): E2010 Incompatible types: 'array of Char' and 'TAChar'
According to Rudy's article, it should b...
Culp asked 30/12, 2015 at 12:17
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How can i send parameters to CMD? for example send a path and start it from that path? How can i execute CMD commands?
Thanks
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I have just spent quite a lot of time trying to make the Tools/Environment Options dialog of the Delphi 6/7 IDE sizable from within GExperts. Everything seemed to work fine until I found that chang...
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There are quite a few API routines that take a pointer to some variable as a parameter that were translated to var parameters, yet can be specified as nil pointers according to the Windows help fil...
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I have a question (or more likely a bug report) about bit shifting behavior in Delphi (tested in Borland Delphi 7).
Target: perform an "Arithmetic" bitwise shift right with any number.
This means...
Adore asked 24/8, 2015 at 18:45
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I'm using lkJSON-1.07 in delphi 7, in their example
js := TlkJSONobject.Create;
js.Add('namestring','namevalue');
// get the text of object
s := TlkJSON.GenerateText(js);
writeln(s);
writeln;
wr...
3
My Delphi-7 application displays :
Screen.DesktopWidth
Screen.DesktopHeight
Screen.Monitors[0].Width
Screen.Monitors[0].Height
and , if there's a second monitor selected , also :
Screen.M...
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I am bit curious about the two properties of a Delphi VCL control.
Each component has 2 properties as Owner and Parent at runtime. Can anyone help me to understand the difference between both? And...
3
I have developed a Delphi 7 application that is using Firebird 1.5.6 database in client
server environment.
The application is running on Windows 7 32 bit on notebook computer an the database is ...
Totem asked 30/6, 2011 at 12:19
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I need a way to pause the execution of a function for some seconds. I know i can use the sleep method to do it, but this method 'freezes' the application while its execution. I also know i can use ...
Polivy asked 24/6, 2015 at 12:22
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My application is based on modal forms. Main form opens one form with ShowModal, this form opens another with ShowModal, so we have stacked modal forms. There is sometimes a problem that when we ca...
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After looking for a way to resize TPngObject and maintain the transparency + alpha channels to no avail, I'm trying to use GDI+
Here is my code, and it seems to work fine. it will down/up scale a ...
1
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I have a form with both a TImage and a TButton control. I noticed the rate of responding to the OnClick event seemed a bit slow for the TImage (rapid clicking!) so I measured it. For 100+ clicks (a...
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I want to access the Printers Unit in Delphi XE7. I am not able to do this, because „the Printers Unit cannot be resolved“ as shown on this image:
As a beginner in Delphi, I don’t know what to d...
Batiste asked 7/4, 2015 at 9:19
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I created a console application in delphi 7, which is supposed to show messages after you press the enter button:
begin
writeln ('Press ENTER to continue');
readln;
writeln ('blablabla');
writ...
Minos asked 15/4, 2013 at 18:21
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How can I best maintain compatibility for namespaces in uses between Delphi 7 to Delphi XE7 ?
Delphi 7 use SysUtils while Delphi XE7 use System.SysUtils.
It clutter the code a lot with many ifdef...
Lancashire asked 22/3, 2015 at 17:11
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I know you can mark a single constant as deprecated using
const
NotDeprConst1 = 1;
DeprConst = 2 deprecated;
NotDeprConst2 = 2;
But, can you mark a whole const block as deprecated without mar...
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Continue of this topic:
Drop down menu for TButton
I have wrote a generic code for DropDown memu with any TControl, but for some reason it dose not work as expected with TPanel:
var
TickCountMe...
Rosie asked 15/11, 2014 at 11:23
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