Re: [Dev-C++] Simple window in Dev C++

[Per W. <pw...@ia...>]

Are you sure that style is a pointer?

And are you sure about MassageBox. Note the spelling. MessageBox is alot
better :)

/Per W

On Sat, 11 Jun 2005, Infinity wrote:

>  I tried to make a simple window using this code
>
> #include <windows.h>
>
> // Prototype of a function with Windows procedurs
>
> LRESULT CALLBACK WindowProcedure(HWND,UINT,WPARAM,LPARAM);
>
> // Window class name
>
> static char gszClassName[]=3D"MyClass";
>
> // main()
>
> int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
> LPSTR lpCmdLine, int nCmdShow)
> {
>       WNDCLASSEX WndClass;
>       HWND hwnd;
>       MSG Msg;
>
> // Registration of a window class
>
> WndClass.cbSize=3Dsizeof (WNDCLASSEX);
> WndClass.style=3DNULL;
> WndClass.lpfnWndProc=3DWindowProcedure;
> WndClass.cbClsExtra=3D0;
> WndClass.cbWndExtra=3D0;
> WndClass.hInstance=3DhInstance;
> WndClass.hIcon=3DLoadIcon(NULL, IDI_APPLICATION);
> WndClass.hCursor=3DLoadCursor(NULL, IDC_ARROW);
> WndClass.hbrBackground=3D(HBRUSH)(COLOR_WINDOW);
> WndClass.lpszMenuName=3DNULL;
> WndClass.lpszClassName=3DgszClassName;
> WndClass.hIconSm=3DLoadIcon(NULL, IDI_APPLICATION);
>
> // Class registration check
>
> if (!RegisterClassEx(&WndClass))
> {
> MassageBox(0,"Registration failed","Error", MB_ICONSTOP|MB_OK);
> }
>
> // Creating a window
>
> hwnd=3DCreateWindowEx(WS_EX_STATICEDGE,
>                     gszClassName,
>                     "Window",
>                     WS_OVERLAPPEDWINDOW,
>                     CW_USEDEFAULT, CW_USEDEFAULT,
>                     500, 400,
>                     NULL, NULL,
>                     hInstance,
>                     NULL);
>
> // Window creation check
>
> if (hwnd=3D=3DNULL)
> {
> MessageBox (0, "Window creation failed","Error", MB_ICONSTOP|MB_OK);
> }
>
> // Showing a window
>
> ShowWindow(hwnd, nCmdShow);
> UpdateWindow(hwnd);
>
> // message loop
>
> while (GetMessage(&Msg, NULL, 0, 0))
> {
>       TranslateMessage(&Msg);
>       DispatchMessage(&Msg);
> }
>
>
> UnregisterClass("MyClass",hInstance);
> return Msg.wParam;
> }// END
>
> // Function with Windows procedurs
>
> LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT Message, WPARAM wParam,=
 LPARAM lParam)
> {
>         switch (Message) {
>                case WM_CLOSE:
>                     DestroyWindow(hwnd);
>                     break;
>                case WM_DESTROY:
>                     PostQuitMessage(0);
>                     break;
>                default:
>                        return DefWindowProc(hwnd, Message, wParam, lParam=
);
>                        }
> }
>
>
> And I got the following error:
>
> In function `int WinMain(HINSTANCE__*, HINSTANCE__*, CHAR*, int)':
> 23 [Warning] converting to non-pointer type `UINT' from NULL
> 39 `MassageBox' undeclared (first use this function)
> (Each undeclared identifier is reported only once for each function it ap=
pears in.)
> C:\Dev-Cpp\Makefile.win [Build Error] [main.o] Error 1
> Help, Please!
>
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