Displaying Text

Hello all :)

Basically, I'm a PHP coder, and I've decided to take have a bash at C. The two languages are so similiar, I think I've pretty much picked it up ok. I can handle command line stuff fine, it's just this stupid windows thing that I can't do.

So, I'm having a bit of a problem with the windows api. I'm just trying to display a window with some text in it...

But the text just doesn't display!! I'm using DrawTextEx()...I would make a guess it's something to do with that. I'm on windows XP, and using CodeBlocks as my compiler.

Here's my code:

Code:

---

#include <windows.h>

const char Window_Class[] = "WindowClass";

//window callback handler
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
        //switch message...
        switch(msg)
        {
                //close window
                case WM_CLOSE:
            MessageBox(hwnd, "Bye", ":)", 0);
                        DestroyWindow(hwnd);
                break;
                //display window
                case WM_PAINT:
            RECT rcClient;
                        PAINTSTRUCT ps;
                        HDC hdc = BeginPaint(hwnd, &ps);

                        DrawTextEx(hdc, "Hello...world?"+'\0', -1, &rcClient, DT_CENTER, NULL);
                break;
                //register window process
                default:
                        return DefWindowProc(hwnd, msg, wParam, lParam);
                break;
        }

        return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    char *lpCmdLine, int nCmdShow)
{
        //register windows classes
        WNDCLASSEX  window;
        HWND        hwnd;
        MSG        msg;

        //register window with....windows ;)
        window.cbSize          = sizeof(WNDCLASSEX);
        window.style                    = 0;
        window.lpfnWndProc            = WndProc;
        window.cbClsExtra            = 0;
        window.cbWndExtra            = 0;
        window.hInstance            = hInstance;
        window.hIcon                    = LoadIcon(NULL, IDI_APPLICATION);
        window.hCursor                    = LoadCursor(NULL, IDC_ARROW);
        window.hbrBackground    = (HBRUSH) (COLOR_WINDOW + 1);
        window.lpszMenuName    = NULL;
        window.lpszClassName    = Window_Class;
        window.hIconSm                    = LoadIcon(NULL, IDI_APPLICATION);

        //...
        RegisterClassEx(&window);

        //create the window
        hwnd = CreateWindowEx(
                WS_EX_CLIENTEDGE,
                Window_Class,
                "Window!",
                WS_OVERLAPPEDWINDOW,
                CW_USEDEFAULT, CW_USEDEFAULT, 500, 250,
                NULL, NULL, hInstance, NULL);

        //run...
        ShowWindow(hwnd, nCmdShow);
        UpdateWindow(hwnd);

        //run the message loop
        while(GetMessage(&msg, NULL, 0, 0) > 0)
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }

        return msg.wParam;
}

---

If you need any more info, please ask.
Thanks for taking the time to read this!!

Cheers,
Jack.

It's been a long time since I've done Windows programming, but I think you need to call EndPaint() after your DrawText call.

No...didn't make a difference unfortunately :( Still got a blank window...

Thanks for the suggestion anyway.

Any other ideas...? :)

Regards,
Jack.

Aha! After reading a load of MSDN docs, I found TextOut(). Works perfectly. Thanks for your help anyway bithub :)

Cheers,
Jack.