Are there any build in function or must I resort to winapi ?

On Tuesday, 29 January 2013 at 15:33:29 UTC, rsk82 wrote:
> Are there any build in function or must I resort to winapi ?

args[0]?

//----
import std.stdio;
void main(string[] args)
{
    stdout.writeln(args[0]);
}
//----

Le 29/01/2013 10:33, rsk82 a écrit :
> Are there any build in function or must I resort to winapi ?

int main(string[] argv)
{
	writeln(argv[0] ~ " is what you are looking for");
}

^^

On Tuesday, 29 January 2013 at 15:46:40 UTC, monarch_dodra wrote:
>     stdout.writeln(args[0]);

It doesn't work while I have WinMain function that then calls myWinMain, as it is winsamp.d

Error: undefined identifier args, did you mean struct CArgs?

On Tue, 29 Jan 2013 15:51:08 -0000, rsk82 <rsk82@live.com> wrote:

> On Tuesday, 29 January 2013 at 15:46:40 UTC, monarch_dodra wrote:
>>     stdout.writeln(args[0]);
>
> It doesn't work while I have WinMain function that then calls myWinMain, as it is winsamp.d
>
> Error: undefined identifier args, did you mean struct CArgs?

Try..

1. Add these lines to the top of winsamp.d (after other includes)

import core.sys.windows.windows;
import std.utf;

string commandLine = null;

2. Add these lines to myWinMain (after variable declarations, before wndclass.style..)

	wchar[260] moduleName;
	uint n = GetModuleFileNameW(null, moduleName.ptr, moduleName.length);
	commandLine = toUTF8(moduleName[0..n]);

3. In WindowProc (I had to add nothrow to my definition BTW) change this line

TextOutA(dc, r.right / 2, r.bottom / 2, text.toStringz, text.length);

to read:

TextOutA(dc, r.right / 2, r.bottom / 2, commandLine.toStringz, commandLine.length);

4. Compile/run it, i.e. dmd -run winsamp.d

R

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On Tuesday, 29 January 2013 at 15:51:09 UTC, rsk82 wrote:
> On Tuesday, 29 January 2013 at 15:46:40 UTC, monarch_dodra wrote:
>>    stdout.writeln(args[0]);
>
> It doesn't work while I have WinMain function that then calls myWinMain, as it is winsamp.d
>
> Error: undefined identifier args, did you mean struct CArgs?

If you pass the following on the command line:

-L/SUBSYSTEM:windows:5

You can get rid of your WinMain function and use a standard main, while still getting a "windowed" app instead of a console app. Dropping the :5 would allow you to support Windows 9x, but DMD doesn't (or isn't going to) support that anymore anyway. I always add :5 for XP and higher.

When running with main, DRuntime stores the args, so you can access them anywhere in your program by importing core.runtime and accessing the Runtime.args property. I had assumed that held true when WinMain was used, but after scanning through the source I don't see that it is.