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PostMessageA In C#? :(

 
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Symbol
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PostPosted: Wed Nov 28, 2007 7:29 am    Post subject: PostMessageA In C#? :( Reply with quote
I know how to do it in delphi (with the first 5 bytes bypass but that doesn't count its not my method... Laughing ) and I tried to do in in C#: (I don't need the bypass... its not for maple. yet. Rolling Eyes )
Code:
            [DllImport("User32.dll")]
            public static extern bool PostMessageA(??? hWnd,uint Msg,uint wParam,uint lParam);

There's no hWnd paramater, and when I use IntPtr then it says:
Code:
The name 'WM_Close' does not exist in the current context


So the message isn't a uint, and the hWnd is?
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appalsap
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PostPosted: Wed Nov 28, 2007 7:31 am    Post subject: Reply with quote
you have to define the WM_* messages yourself, convert them from C to C# from winuser.h
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PostPosted: Wed Nov 28, 2007 7:45 am    Post subject: Reply with quote
Alright, how would I do that? How can I see whats in winuser.h? Shocked

Edit:
Code:
#define WM_Close            105
#endif
Neutral Neutral Neutral

Last edited by Symbol on Wed Nov 28, 2007 7:49 am; edited 1 time in total
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appalsap
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PostPosted: Wed Nov 28, 2007 7:46 am    Post subject: Reply with quote
by opening it in notepad
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PostPosted: Wed Nov 28, 2007 7:56 am    Post subject: Reply with quote
Code:
#define WM_CLOSE                        0x0010

Hehe, thanks appalsap, helping again! now converting. Smile
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samuri25404
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PostPosted: Wed Nov 28, 2007 1:29 pm    Post subject: Reply with quote
Actually, you'll probably want to do it in an enum:

Code:

enum Messages
{
VM_Close = 107,
Whatever,
Whatevr,
Whatver
}

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atom0s
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PostPosted: Wed Nov 28, 2007 6:14 pm    Post subject: Reply with quote
Symbol wrote:
Code:
#define WM_CLOSE                        0x0010

Hehe, thanks appalsap, helping again! now converting. Smile


Incase you don't know, '0x' means hex.

So 0x0010 = 16 in decimal.

#define is basically making a constant. You are saying WM_CLOSE will always equal 0x0010 unless redefined elsewhere.

So you could do:

Code:
private const int WM_CLOSE = 16;


According to other sites for PostMessage:

Code:
   private static extern int PostMessage( IntPtr hWnd,
      int wMsg, int wParam, int lParam );

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