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Printing text on winapi gui application

FluorescentGreen5 (14)
Hello everyone, I've decided to move onto GUI applications, and would like to know how to print some simple white text in the center of the screen (Hello World for example).

I obtained the template from https://www.daniweb.com/programming/software-development/threads/77173/c-gui-graphical-user-interface-for-beginners

This is the code I'm using:
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#include <windows.h>
const char g_szClassName[] = "myWindowClass";
// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;
    //Step 1: Registering the Window Class
    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = 0;
    wc.lpfnWndProc   = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance     = hInstance;
    wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
    //wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+3);
    wc.hbrBackground = CreateSolidBrush(RGB(0, 128, 128));
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);
    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }
    // Step 2: Creating the Window
    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        g_szClassName,
        "The title of my window",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 222, 249,
        NULL, NULL, hInstance, NULL);
    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);
    // Step 3: The Message Loop
    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}
closed account (E0p9LyTq)
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LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
   HDC hdc;
   PAINTSTRUCT ps;
   RECT rect;

   TCHAR test[] = TEXT("Hello World!");

   switch (message)
   {
   case WM_PAINT:
      hdc = BeginPaint(hwnd, &ps);
      GetClientRect(hwnd, &rect);
      DrawText(hdc, test, -1, &rect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
      EndPaint(hwnd, &ps);
      return 0;

   case WM_DESTROY:
      PostQuitMessage(0);
      return 0;
   }

   return DefWindowProc(hwnd, message, wParam, lParam);
}
FluorescentGreen5 (14)
Thanks FurryGuy
closed account (E0p9LyTq)
There is an even easier way to do a Windows GUI "Hello World!" app:

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#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
   MessageBox(NULL, "Hello World!", "Hello Message", MB_OK | MB_ICONINFORMATION);

   return 0;
}
FluorescentGreen5 (14)
True, but that's for a simple message box, I wanted to give an real window a try.
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