On Friday, 23 June 2023 at 23:37:29 UTC, Vinod K Chandran wrote:
Hi all,
Hi, I found the solution by myself. We can use Pipe struct for
this job.
Here is the code looks like. This is for future readers.
```d
void onBtnBurnClick(Control c, EventArgs e) { // A button click
event handler
Hi all,
I am trying to create a program which burns time codes to a
video. I am using ffmpeg for this. So far, I can successfully
start ffmpeg in another thread and stop it when I need. But I
can't read the live outputs from ffmpeg. This is my code.
```d
void onBtnBurnClick(Control c,
On Saturday, 2 July 2022 at 21:36:50 UTC, mw wrote:
Actually, can you create a github repo, I'm sure people will
send you a working PR.
Yes I can. I will inform here once I did it.
On Saturday, 2 July 2022 at 01:05:25 UTC, Ali Çehreli wrote:
3) The users of this dll should import that .di file (declaring
the functions themselves won't work):
Ali
Hi, Thanks for the reply. I have tried your suggestion. First, I
compiled my dll's source code with `-H` switch as you
On Friday, 1 July 2022 at 22:38:17 UTC, Adam D Ruppe wrote:
On Friday, 1 July 2022 at 22:32:24 UTC, Vinod K Chandran wrote:
So using a `def` file is a must I think.
no it is not. you just need to mark things export and make sure
names match (including module name)
Thanks for the reply.
On Friday, 1 July 2022 at 22:22:42 UTC, mw wrote:
Try follow instructions here:
https://wiki.dlang.org/Win32_DLLs_in_D
Thanks. So using a `def` file is a must I think. At first, I
thought I can skip that.
On Friday, 1 July 2022 at 21:02:20 UTC, mw wrote:
I think the problem is the linker looking for dime.testFunc,
while your lib function is dimedll.testFunc
Thanks for the reply. What about this `mixin SimpleDllMain;` I
suspect this.
On Friday, 1 July 2022 at 20:08:45 UTC, ryuukk_ wrote:
I think it is `extern(D) void testFunc();`?
Thanks for the reply. But the result is same linker error.
On Saturday, 18 June 2022 at 21:03:23 UTC, solidstate1991 wrote:
It seems that you are created a layered window. So chances are
there to it become translucent.
On Sunday, 5 June 2022 at 11:33:14 UTC, Vinod K Chandran wrote:
For future readers of this thread, rikki cattermole helped me to
findthe solution to this problem. I Do not need the C++ classes
or their methods for this. There is a set of C functions in
gdiplus.dll. Check this link.
On Sunday, 5 June 2022 at 10:57:16 UTC, rikki cattermole wrote:
Bitmap is a class, not a namespace.
The function you want is actually a constructor.
https://github.com/Alexpux/mingw-w64/blob/master/mingw-w64-headers/include/gdiplus/gdiplusheaders.h#L179
Thank you for the reply. Well, I know
Hi all,
I want to call the Bitmap function from gdi+. This is the syntax
of the function in C++.
```c++
void Bitmap(
[in] const WCHAR *filename,
[in] BOOLuseEmbeddedColorManagement
);
```
And this is the mangled name which I got from goldbolt compiler.
`?Bitmap@@YAXPEB_WH@Z `
Now,
On Tuesday, 10 May 2022 at 01:07:37 UTC, Mike Parker wrote:
```d
import std.conv : to;
string s = to!string(pszUserString);
```
Thanks, it worked. At first, I tried `to!string` but it failed
because of this usage--
```d
this(LPCWSTR dtpStr) { this.dateString =
to!string(LPCWSTR)(dtpStr) ; }
Hi all.
I want to convert an LPCWSTR to string.
I have a struct like this
```cpp
typedef struct tagNMDATETIMESTRINGW {
NMHDR nmhdr;
LPCWSTRpszUserString;
SYSTEMTIME st;
DWORD dwFlags;
} NMDATETIMESTRINGW, *LPNMDATETIMESTRINGW;
```
I want to convert this `pszUserString` to a
On Monday, 2 May 2022 at 20:50:17 UTC, H. S. Teoh wrote:
should be in the same order. How to do it ?
int[] data = [ 10, 20, 30, 40, 50 ];
data = data.remove(2);
assert(data == [ 10, 20, 40, 50 ]);
T
Thanks a lot.
Hi all,
I have dynamic array and I want to remove an element from it. All
I have the index of the element to remove. And I want to the
array should be in the same order. How to do it ?
On Monday, 25 April 2022 at 07:19:31 UTC, bauss wrote:
Yes and in addition to Ali's message then remember it's
private for the module only.
Oops typo.
What I meant is that private is module level, so it's __not__
private in the module, but it is for other modules.
Thanks for the reply.
On Monday, 25 April 2022 at 02:22:42 UTC, Ali Çehreli wrote:
Looks good to me.
There are other ways as well:
Thanks a lot. All I wanted to implement more than ctor with
different parameters and avoid code duplication.
Hi all,
Please take a look at this code. Is this the right way to use
private constructors ?
```d
class Foo {
int p1 ;
string p2 ;
bool p3 ;
private this(int a, string b, bool c) {
this.p1 = a
this.p2 = b
this.p3 = c
}
this(int a) {
On Monday, 4 April 2022 at 13:32:19 UTC, Steven Schveighoffer
wrote:
This looks more like lisp or scheme. You know this is a forum
for the D programming language?
This was the same question in my mind.
On Sunday, 27 March 2022 at 01:11:02 UTC, Steven Schveighoffer
wrote:
Not sure what the question here is,
Thanks for the reply. Actually, my problem was this, I forgot the
presence of `LargerOf!(A, B)` template function in that chapter.
When I see it in a function, I thought where is the
On Saturday, 26 March 2022 at 18:25:54 UTC, Vinod K Chandran
wrote:
Hi all,
The author says `LargerOf!(A, B)` is used instead of `auto`
keyword. How did compiler understands the return type from
`LargerOf!(A, B)`.
Oh Sorry !. I forgot the `LargerOf!(A, B)` definition which is in
the same
Hi all,
I am reading `Programming in D` online book. There is a paragraph
in the chapter `More Templates`.
```
typeof(return) generates the return type of a function, inside
that function.
For example, instead of defining the calculate() function above
as an auto function, we can be more
On Saturday, 19 March 2022 at 22:31:19 UTC, Stanislav Blinov
wrote:
It is appearing not in the `static if`, but in the `is`
expression, which I described further in the rest of my first
reply. Sorry if that wasn't clear.
No, it was my mistake, I missed it.
The other template syntax -
On Saturday, 19 March 2022 at 16:08:33 UTC, Ali Çehreli wrote:
Here is the clickable url:
http://ddili.org/ders/d.en/is_expr.html
I just read it again and I still like what I wrote there. :)
(Usually it is the other way around.)
Ali
Thanks. Let me read that chapter.
On Saturday, 19 March 2022 at 15:58:25 UTC, Ali Çehreli wrote:
I wrote a chapter about the is expression but it's still
mysterious to me. :)
ddili.org/ders/d.en/is_expr.html
Thanks for the reply. I think I choose the wrong book. I knew
about your book but I thought this one is
On Saturday, 19 March 2022 at 08:49:02 UTC, Salih Dincer wrote:
Thanks for the reply. You explained the idea very well and it's
easy to understand for a novice.
On Saturday, 19 March 2022 at 11:47:53 UTC, Stanislav Blinov
wrote:
No.
First of all Thanks for the reply. The answer "No" is a wonder to
me. Because, from my point of view, `U` is coming from nowhere.
My understanding is, we can use any parameter of a template
inside the template. So in
Hi all,
I am trying to learn D templates with Philippe Sigaud's "D
Templates: A Tutorial". So far so good. I have completed first 19
pages and in the 20th page, I found an obstacle. This is the code.
```d
module rank1;
template rank(T)
{
static if (is(T t == U[], U)) // is T an array of
On Monday, 6 September 2021 at 01:19:04 UTC, Ali Çehreli wrote:
Yes, but it was meant to be a joke. Don't do that. :)
Ha ha, okay :)
On Friday, 3 September 2021 at 20:21:43 UTC, Ali Çehreli wrote:
So, change your program to respond to -D and generate the
documentation potentially by spawning a dmd instance. :o)
I am not sure i get the point correctly. You mean, starting dmd
as a new process from my program and pass the
On Thursday, 2 September 2021 at 17:34:59 UTC, Adam D Ruppe wrote:
Anything after -run goes to your program not the compiler.
Args to the compiler must be before -run.
Thanks for the reply. Got the point now. :)
On Thursday, 2 September 2021 at 16:26:19 UTC, jfondren wrote:
What commands are you running? What you describe doing, works:
```
$ dmd -D file
$ w3m -dump file.html|grep -A1 function
A sample function. Let's check what we will get in
documentation. abc - A
simple string
$ rm
Hi all,
I am playing with ddoc. I wrote this code--
```d
import std.stdio : log = writeln;
void main() {
log("Experimenting with dDoc");
}
/// A sample function.
/// Let's check what we will get in documentation.
/// abc - A simple string
void sample(string abc) {log(abc);}
```
And then,
On Saturday, 29 May 2021 at 01:04:02 UTC, Marcone wrote:
Win32Api + Metaprogramming?
Yes.
On Thursday, 27 May 2021 at 01:17:44 UTC, someone wrote:
I am learning D by writing a Windows only GUI library. It is
taking too much time for me since, I am writing some stuff and
then happen to learn some new things about it and re-writing
it.Anyhow, so far so good. This is the code now.
On Wednesday, 12 May 2021 at 20:55:07 UTC, Christian Köstlin
wrote:
if you want to do a separate package later on, you only have to
change a little in your project setup, code can stay the same.
kind regards,
Christian
That's nice. :)
On Wednesday, 12 May 2021 at 15:03:14 UTC, Imperatorn wrote:
Check out add-local
Thanks. Let me check. :)
On Wednesday, 12 May 2021 at 17:23:16 UTC, JG wrote:
Have a look at
[link](https://forum.dlang.org/post/jyxdcotuqhcdfqwwh...@forum.dlang.org).
Thanks for the link. :)
On Wednesday, 12 May 2021 at 18:26:39 UTC, Christian Köstlin
wrote:
Are you really interested in doing winglib as a separate dub
package?
If not you could just do a `dub init yourappname` which gives
you the basic skeleton. something like:
.
├── dub.sdl
└── source
└── app.d
then you
Hi all,
I am creating a hobby project related with win api gui functions.
i would like to work with dub. But How do I use dub in my project.
1. All my gui library modules are located in a folder named
"winglib".
2. And that folder also conatains a d file called "package.d"
3. "package.d"
On Tuesday, 11 May 2021 at 10:48:03 UTC, Mike Parker wrote:
On Tuesday, 11 May 2021 at 09:10:02 UTC, Vinod K Chandran wrote:
So in many situations, I need to check some boolean properties
of Window class and call some functions of Window class in
WndProc.
But I don't want to expose those
On Tuesday, 11 May 2021 at 10:47:15 UTC, cc wrote:
The `package` protection attribute should work here if the
modules reside in the same package (directory)?
Thanks. "package" scope worked.
Hi all,
I am practising D with a win api GUI hobby project.
I have a Window class and it resides in module window.d
My WndProc function resides in another module named
wnd_proc_module.d
Inside my WndProc, I get the Window class like this.
```d
Window win = cast(Window) (cast(void*)
On Sunday, 9 May 2021 at 09:34:00 UTC, FreeSlave wrote:
You may try using tempCStringW from std.internal.cstring. It
uses small string optimization. However the api is internal, so
I'm not sure how valid it is to use this function. The returned
struct is a temporary buffer so you must
On Saturday, 8 May 2021 at 21:26:06 UTC, Imperatorn wrote:
iirc that's toUTF16z
Thanks. Let me check. :)
Hi all,
I am planning some win32 hobby projects. Now I have this function
to tackle the LPCWSTR data type in win32.
```d
private import std.utf;
auto toWString(S)(S s) { return toUTFz!(const(wchar)*)(s); }
```
Is there any better way to do this ?
On Wednesday, 5 May 2021 at 18:50:05 UTC, Alain De Vos wrote:
What's wrong with WSL. I think it is a great idea.
What Imperatorn said is the write thing. Sorry for not being
clear.
On Friday, 30 April 2021 at 19:25:16 UTC, Siemargl wrote:
I did this @2014. No problems remembered.
May be it's my fault. Let me check once again.
On Friday, 30 April 2021 at 17:01:52 UTC, TheGag96 wrote:
I used tkD a long time ago. Look through [this
repo](https://github.com/thegag96/codewrite) - maybe something
in there will help you.
Thanks for the link. Let me check.
On Friday, 30 April 2021 at 14:49:33 UTC, Alain De Vos wrote:
tkd works perfectly. Which O.S. are you using ? I can guide.
I am using Windows 10 x64.
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:
What are the strengths and weaknesses comparing the two
languages ?
I can name a strength of dlang is the working binding to tk and
gtk.
Pros of **Crystal**
1. Attractive syntax. I like Ruby like syntax. It's really
expressive.
On Tuesday, 30 March 2021 at 08:31:02 UTC, Luhrel wrote:
I have been used this trick in C++, so it might also work in D:
```
import core.stdc.stdlib;
import std.stdio;
void main()
{
version(Windows)
system("chcp 65001 > NUL".ptr);
writeln("çéäö");
}
```
Works like a charm in
On Thursday, 18 March 2021 at 21:21:37 UTC, Paul Backus wrote:
The source code is here: https://github.com/p0nce/d-idioms/
Thanks for the answer. But it's more complex than I thought.
Something like Latex was in my mind.
On Wednesday, 17 March 2021 at 14:30:26 UTC, Guillaume Piolat
wrote:
I made this article to clear up that point:
https://p0nce.github.io/d-idioms/#Slices-.capacity,-the-mysterious-property
Sorry for this off-topic question. I am amazed with eye catchy
look of that d-idioms page. I want to
On Wednesday, 17 March 2021 at 06:39:26 UTC, Imperatorn wrote:
Good that you solved it, that wasn't what I thought the
solution would be
I was sure about i can solve this through NM_CUSTOMDRAW. Because,
in VB .net, we can change back color & fore color of button. On
the same time, there
On Tuesday, 16 March 2021 at 19:42:26 UTC, Imperatorn wrote:
At last, i found the answer myself. There is a item called
dwDrawStage in NMCUSTOMDRAW structure. If value of dwDrawStage
is equal to CDDS_PREERASE, call SetBkMode with transparent and
call SetTextColor. Then draw text with
On Tuesday, 16 March 2021 at 18:35:00 UTC, Imperatorn wrote:
I see
Do you get CLR_INVALID in return?
From that results, second one contains my color value.
Set Text color result - 0233FF66
RGB(102, 255, 51) is the color.
66 = 102
FF = 255
33 = 51
On Tuesday, 16 March 2021 at 18:35:00 UTC, Imperatorn wrote:
I see
Do you get CLR_INVALID in return?
That results might be wrong. So i printed them in hex. These are
the hex results.
Set Text color result -
Set Text color result - 0233FF66
Set Text color result -
Set
On Tuesday, 16 March 2021 at 18:35:00 UTC, Imperatorn wrote:
I see
Do you get CLR_INVALID in return?
As far as i know this is the value of CLR_INVALID - 4294967295.
And these are the results i got from my function.
Set Text color result - 0
Set Text color result - 36962150
Set Text
On Tuesday, 16 March 2021 at 17:45:09 UTC, Imperatorn wrote:
Omg the pain. Are you forced to use raw win api for this?
Not at all. It's my hobby project. I choose raw win api. It's a
fun.
Hi all,
I am creating a Button class with Win32 API functions. So far so
good. I am using NM_CUSTOMDRAW message to change the back color
of my buttons. It's really easy to change the back color in this
way. But I can't change the text color of my button. This is my
pseudo code.
```
uint
On Sunday, 28 February 2021 at 13:15:47 UTC, Adam D. Ruppe wrote:
And it is the simplest thing, no missing length, no weird
property casting. The GC handled with two simple add/remove
calls.
Perfect example of teaching something. Thank you for this
knowledge. Even though, this was not my
On Tuesday, 19 January 2021 at 16:52:18 UTC, Paul Backus wrote:
On Tuesday, 19 January 2021 at 16:22:35 UTC, Vinod K Chandran
wrote:
b ? (tbinfo.fsState |= TBSTATE_ENABLED) : (tbinfo.fsState
&= ~TBSTATE_ENABLED);
This means, "if b is true, set the TBSTATE_ENABLED flag to
true;
On Sunday, 17 January 2021 at 14:00:48 UTC, Mike Parker wrote:
On Sunday, 17 January 2021 at 13:04:33 UTC, Vinod K Chandran
Three of those messages include the solution to fix the errors.
The fourth one is a missing import (`import std.conv : to`) in
dguihub.core.utils. You could fix these
Hi all,
I would like to use a gui package called "dguihub". So i did
these steps.
1. Downloaded source files from Github.
2. Extract it and copy dguihub folder to my project folder. this
folder contains all the source files of this package.
3. Write an import statement in my app.d "import
On Monday, 22 June 2020 at 10:26:12 UTC, aberba wrote:
It would be a one-liner if it was an api. Such utility APIs are
quite missing in D.
Um, You are right.
How about putting them together into a package?
Well, this is an inspiration to me. Let me try. :)
On Saturday, 20 June 2020 at 13:46:05 UTC, Dennis wrote:
Thanks a lot. Well, i thought it should be a one liner like-
Clipboard.SetText(sText)
But after reading your reply, i realized that this is D, not a
scripting language. :)
Hi all,
I would like to know how to get & set text in clipboard. I am
using windows machine. Thanks in advance.
--Vinod Chandran
On Wednesday, 10 June 2020 at 22:15:25 UTC, 12345swordy wrote:
It can't do binary operations and unary operations.
@12345swordy, You mean we can't do such ops inside the property ?
On Wednesday, 10 June 2020 at 21:40:44 UTC, Paul Backus wrote:
The current state of @property is that it doesn't really do
anything. D allows you to call functions without parentheses,
and to use assignment syntax to call a single-argument
function, so you can write getters and setters that
On Wednesday, 10 June 2020 at 21:41:54 UTC, H. S. Teoh wrote:
It's stuck in limbo, like many things that people just cannot
agree on. There are a few places where it's needed (like
satisfying the range API, which implicitly checks for it), but
for the most part, you can just ignore it, it
Hi all,
I read in an old thread that authors of D wants to eliminate
@property. I just roughly read the big thread bu couldn't find a
conclusion. After all that thread is a 48 page longer jumbo
thread. So out of curiosity, i am asking this. What is the
current state of @property ? Is it
On Wednesday, 27 May 2020 at 17:36:35 UTC, Dennis wrote:
On Wednesday, 27 May 2020 at 17:33:33 UTC, Vinod K Chandran
wrote:
I am saving this enum values as string in database. So, when i
retrieve them from the database, how can i parse the string
into TestEnum ?
Use `to` from `std.conv`.
Hi all,
Assume that i have an enum like this.
enum TestEnum {
Received = 1,
Started ,
Finished ,
Sent
}
I am saving this enum values as string in database. So, when i
retrieve them from the database, how can i parse the string into
TestEnum ? In vb. net, i can use
On Tuesday, 26 May 2020 at 14:42:04 UTC, Steven Schveighoffer
wrote:
On Tuesday, 26 May 2020 at 14:42:04 UTC, Steven Schveighoffer
wrote:
Hm... According to run.dlang.io, this behavior changed in 2.072
(prior to that it worked). In 2.067.1 to 2.071.2, changing the
this reference was
On Tuesday, 26 May 2020 at 13:48:52 UTC, ag0aep6g wrote:
On 26.05.20 15:43, Vinod K Chandran wrote:
So far now, two solutions are very clear for this problem.
1. As per John Chapman's suggestion - use
cast(DWORD_PTR)cast(void*)this).
2. Use another varibale to use as an lvalue. -
Button
On Tuesday, 26 May 2020 at 13:44:24 UTC, Adam D. Ruppe wrote:
On Tuesday, 26 May 2020 at 11:35:23 UTC, Vinod K Chandran wrote:
Okay, but uint is working perfectly.
It won't if you use -m64.
Okay. I got it.
On Tuesday, 26 May 2020 at 13:37:22 UTC, Vinod K Chandran wrote:
On Tuesday, 26 May 2020 at 12:41:20 UTC, John Chapman wrote:
On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
Here is my full code. Please take a look.
https://pastebin.com/av3nrvtT
Change line 124 to:
On Tuesday, 26 May 2020 at 12:08:29 UTC, Johannes Loher wrote:
On Tuesday, 26 May 2020 at 11:44:58 UTC, Vinod K Chandran wrote:
[...]
[...]
It doesn't compile, the line
string mt
[...]
Hi,
Sorry for the typos in my code.
On Tuesday, 26 May 2020 at 12:41:20 UTC, John Chapman wrote:
On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
Here is my full code. Please take a look.
https://pastebin.com/av3nrvtT
Change line 124 to:
SetWindowSubclass(this.mHandle, SUBCLASSPROC(),
UINT_PTR(subClsID),
On Monday, 25 May 2020 at 16:39:30 UTC, Mike Parker wrote:
On Monday, 25 May 2020 at 08:39:23 UTC, John Burton wrote:
I believe that in D *this* is a reference to the
object and not a pointer like in C++.
So I think that writing might be what you need?
No. A class reference is a pointer
On Monday, 25 May 2020 at 18:42:33 UTC, bauss wrote:
On Monday, 25 May 2020 at 17:14:13 UTC, Vinod K Chandran wrote:
On Monday, 25 May 2020 at 16:54:11 UTC, Mike Parker wrote:
[...]
Hi @Mike Parker,
Thank you for your valuable suggestions. I will sure follow
them. Well, the exact line
On Monday, 25 May 2020 at 22:54:32 UTC, Adam D. Ruppe wrote:
On Monday, 25 May 2020 at 22:31:00 UTC, Vinod K Chandran wrote:
A dword is an unsigned, 32-bit unit of data. We can use uint
in D. I have tried that too, but no luck.
A DWORD_PTR is *not* the same as a uint. It is more like a
On Monday, 25 May 2020 at 22:04:28 UTC, Adam D. Ruppe wrote:
On Monday, 25 May 2020 at 21:45:39 UTC, welkam wrote:
Where is DWORD_PTR defined?
it is a win32 thing. should be able to directly cast to it most
the time
if there is opCast on the class it needs another layer of
helper function
On Monday, 25 May 2020 at 21:45:39 UTC, welkam wrote:
On Sunday, 24 May 2020 at 17:05:16 UTC, Vinod K Chandran wrote:
cast(DWORD_PTR) this);
Where is DWORD_PTR defined? I cant find it in docs. If its an
alias of long then you have to cast to a pointer like this
cast(long*) this;
you need to
On Monday, 25 May 2020 at 18:42:33 UTC, bauss wrote:
On Monday, 25 May 2020 at 17:14:13 UTC, Vinod K Chandran wrote:
On Monday, 25 May 2020 at 16:54:11 UTC, Mike Parker wrote:
[...]
Hi @Mike Parker,
Thank you for your valuable suggestions. I will sure follow
them. Well, the exact line
On Monday, 25 May 2020 at 16:54:11 UTC, Mike Parker wrote:
On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
[...]
The error has nothing to do with taking a pointer to `this`.
It's suggesting that somewhere in your code you're attempting
to use the `this` reference like an
On Sunday, 24 May 2020 at 17:40:10 UTC, bauss wrote:
On Sunday, 24 May 2020 at 17:05:16 UTC, Vinod K Chandran wrote:
[...]
I think your issue might be elsewhere because casting this
should be fine and it should not complain about that in your
given code.
At least you should be able to
Hi all,
I have a class like this.
class Button : Control {
...
HWND createButton(){
...
SetWindowSubclass(this.mHandle, SUBCLASSPROC(),
UINT_PTR(subClsID), cast(DWORD_PTR) this);
}
}
But compiler says that - "Error: 'this' is not an lvalue and
cannot
On Friday, 22 May 2020 at 22:44:17 UTC, H. S. Teoh wrote:
On Fri, May 22, 2020 at 09:39:16PM +, Vinod K Chandran via
Digitalmars-d-learn wrote: [...]
So in the same manner, i want
void function(Base) = fnPtr wiil work with
void function(Child)
You cannot, because that's type unsafe
On Friday, 22 May 2020 at 22:40:50 UTC, Steven Schveighoffer
wrote:
On 5/22/20 5:39 PM, Vinod K Chandran wrote:
[...]
That is the opposite of what you are thinking. A function
pointer has to be valid based on its parameter types. Covariant
functions are allowed.
This is OK:
void
On Friday, 22 May 2020 at 20:51:20 UTC, Steven Schveighoffer
wrote:
On 5/22/20 4:04 PM, Vinod K Chandran wrote:
[...]
Yes. What you cannot do is this (which I hope doesn't compile
in VB.net, but I wouldn't be surprised):
Dim sampleList As New List(Of Child)
sampleList.Add(New Base(10))
On Friday, 22 May 2020 at 20:06:20 UTC, Adam D. Ruppe wrote:
On Friday, 22 May 2020 at 20:04:24 UTC, Vinod K Chandran wrote:
sampleList.Add(New Child(10.5)) Is this possible in D without
casting ?
Direct translation of this code works just fine in D.
Yeah, my bad. I just checked in D. But
On Friday, 22 May 2020 at 16:12:12 UTC, Steven Schveighoffer
wrote:
On 5/22/20 9:10 AM, Vinod K Chandran wrote:
On Friday, 22 May 2020 at 12:21:25 UTC, rikki cattermole wrote:
if (Child child = cast(Child)parent) {
assert(child !is null);
}
Actually, problem occurs in addHandler
On Friday, 22 May 2020 at 12:21:25 UTC, rikki cattermole wrote:
if (Child child = cast(Child)parent) {
assert(child !is null);
}
Actually, problem occurs in addHandler function. It expects an
argument of type "EventArgs", not MouseEventArgs.
Hi all,
I have a windows gui setup like this;
class EventArgs {} \\ Base class for all messages
class MouseEventArgs : EventArgs { // child class for handling
mouse messages
...
int x;
int y;
this(WPARAM wpm, LPARAM lpm){
this.x = xFromLparam(lpm);
this.y =
On Thursday, 21 May 2020 at 20:12:13 UTC, Harry Gillanders wrote:
On Thursday, 21 May 2020 at 18:42:47 UTC, Vinod K Chandran
wrote:
Hi all,
I need to use the macro GET_X_LPARAM. But compiler says that
"undefined identifier GET_X_LPARAM". I cant find any modules
with GET_X_LPARAM defined. Do i
On Thursday, 21 May 2020 at 18:42:47 UTC, Vinod K Chandran wrote:
Hi all,
I need to use the macro GET_X_LPARAM. But compiler says that
"undefined identifier GET_X_LPARAM". I cant find any modules
with GET_X_LPARAM defined. Do i miss something ?
I search all modules in "
Hi all,
I need to use the macro GET_X_LPARAM. But compiler says that
"undefined identifier GET_X_LPARAM". I cant find any modules with
GET_X_LPARAM defined. Do i miss something ?
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