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Delay when creating a window.

 
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DebugMe
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Joined: 29 May 2007
Posts: 20
PostPosted: Tue Feb 12, 2008 12:51 pm    Post subject: Delay when creating a window. Reply with quote
Hi guys, I'm having a problem when creating a window. The window appears, but it takes time before it fully appears in the task bar, anyone know what's the problem?

Oh and 1 more thing, in VS2005 I set the option to Unicode so should I use CreateWindowEx since it will be changed to CreateWindowExW, or directly use CreateWindowExW?

Thanks, here's the code:

Code:
#include <windows.h>

#define BTN_SHOWMESSAGE        1
#define EDT_MESSAGE            2

LRESULT CALLBACK WndProc( HWND hWnd , UINT message , WPARAM wParam , LPARAM lParam)
{
    switch(message){
    case WM_COMMAND:
        if(LOWORD(wParam)==BTN_SHOWMESSAGE)
      {
            wchar_t TextBuffer[256];
            GetDlgItemText(hWnd, EDT_MESSAGE, TextBuffer, 256);
            MessageBox(hWnd, TextBuffer, TEXT("Welcome"),MB_OK);
        }
        break;

      case WM_CLOSE:
            DestroyWindow(hWnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;

    }
    return DefWindowProc(hWnd,message,wParam,lParam);
}

INT WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow )
{
   WNDCLASSEX wc;
   MSG msg;
   HWND hWnd;
   HWND text;
    HWND edit;
   HWND button;

    // Create A Window Class Structure
    wc.cbClsExtra = 0;
    wc.cbSize = sizeof(wc);
    wc.cbWndExtra = 0;
    wc.hbrBackground = GetSysColorBrush(COLOR_BTNFACE);
    wc.hCursor = LoadCursor(NULL, MAKEINTRESOURCE(IDC_ARROW));
    wc.hIcon = LoadIcon(NULL, MAKEINTRESOURCE(IDI_HAND));
    wc.hIconSm = LoadIcon(NULL, MAKEINTRESOURCE(IDI_HAND));
    wc.hInstance = GetModuleHandle(NULL);
    wc.lpfnWndProc = WndProc;
    wc.lpszClassName = TEXT("My Class");
    wc.lpszMenuName = NULL;
    wc.style = CS_VREDRAW|CS_HREDRAW|CS_OWNDC;
   
    // Register Window Class
    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, TEXT("Window Registration Failed!"), TEXT("Error!"),
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

   
    // Create a Window
        hWnd = CreateWindowEx(0,
        TEXT("My Class"), TEXT("Window"),
        WS_OVERLAPPEDWINDOW, 100,100,400,200,
        NULL,NULL,wc.hInstance,0);

   if(hWnd == NULL)
    {
        MessageBox(NULL, TEXT("Window Creation Failed!"), TEXT("Error!"),
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }


    // Create a label
        text = CreateWindowEx(0,
        TEXT("STATIC"), TEXT("Welcome!"),
        WS_CHILD|WS_VISIBLE, 10,10,100,20,
        hWnd,NULL,NULL,0);

    // Create a edit box
        edit = CreateWindowEx(0,
        TEXT("EDIT"), TEXT("Your Message..."),
        WS_CHILD|WS_VISIBLE|WS_BORDER, 10,50,370,20,
        hWnd,(HMENU)EDT_MESSAGE,NULL,0);
   
    // Create a button
        button = CreateWindowEx(0,
        TEXT("BUTTON"), TEXT("Show Message"),
        WS_CHILD|WS_VISIBLE, 10,90,100,20,
        hWnd,(HMENU)BTN_SHOWMESSAGE,NULL,0);
   
    ShowWindow(hWnd,nCmdShow);
   UpdateWindow(hWnd);

   
    // Message Loop
   
    while(GetMessage(&msg,hWnd,0,0)>0)
   {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
   
     return 0;

}
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Antti
Grandmaster Cheater Supreme
Reputation: -1

Joined: 24 Nov 2006
Posts: 1110
PostPosted: Tue Feb 12, 2008 12:57 pm    Post subject: Reply with quote
error or what?
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Renkokuken
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Joined: 22 Oct 2006
Posts: 3249
PostPosted: Tue Feb 12, 2008 1:17 pm    Post subject: Reply with quote
I recommend you use the full API, since if you ever change the settings, the definitions won't change.

You don't need to use TEXT(), you could just use the L operator instead.
Code:
L"Hello"


No delay for the window creation on my computer, if you're running from the IDE, it might be slowed down a tad.

Oh yes, I've also sent you a PM about the console. If you're interested, I'll keep you updated on it.
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DebugMe
Newbie cheater
Reputation: 0

Joined: 29 May 2007
Posts: 20
PostPosted: Tue Feb 12, 2008 3:10 pm    Post subject: Reply with quote
Renkokuken wrote:
I recommend you use the full API, since if you ever change the settings, the definitions won't change.

You don't need to use TEXT(), you could just use the L operator instead.
Code:
L"Hello"


Alright, thanks for the suggestions.


Renkokuken wrote:

No delay for the window creation on my computer, if you're running from the IDE, it might be slowed down a tad.


Humm that's weird, that's what I'm getting. I'm running the .exe from the folder. It stays like that for about 2 seconds.


Renkokuken wrote:


Oh yes, I've also sent you a PM about the console. If you're interested, I'll keep you updated on it.


It would be great :)
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