My First... Windows App - BlitzCoder.net

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Socoder -> C/C++/C#/Other -> My First... Windows App
Sun, 22 Oct 2006, 02:44
mole	I just started raedng my book, "Teach yourself Game Programming in 21 Days with DirectX". It starts off with creating a simple window. So i went and downloaded MS VC++ EE and installed it. Then, I got the PSDK that i needed for it. I then did the following (there may be a problem here, please tell me if you see something wrong): project properties -> C/C++ -> General -> Additional Include Directories. In there, i linked to "C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Include", the default location of the Include files. next: project properties -> Linker -> General -> Additional Include Directories. Ine there, i linked to "C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Lib", the default location of the libs. Then i copied and pasted the code given in the book into my C++ file in that project, and lo and behold, there were errors. I am thinking they maybe compatability errors? the book uses "MS's latest version of C++, Visual C++ .NET", an older version of what i have, i believe? I managed to tweak the code so that it would run, window title bar and the class name are GIBBERISH. You see, i had to modify these to get the damn thing to atleast run. In the book, they are defined: void CreateAppWindow(HINSTANCE hInstance) { g_hWnd = CreateWindowEx( NULL, "WinApp", /////////////////////////////this line "Basic Windows Application", ////////////////////this line WS_OVERLAPPEDWINDOW, 100, 100, 648, 514, GetDesktopWindow(), NULL, hInstance, NULL); } --v and also in this funtion: void RegisterWindowClass(HINSTANCE hInstance) { WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW \| CS_VREDRAW \| CS_OWNDC; wc.lpfnWndProc = WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = (HCURSOR)LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName = "WinApp"; //////////this line wc.hIconSm = NULL; RegisterClassEx(&wc); } --v What I did to to make it work was: LPCWSTR("WinApp"), LPCWSTR("Basic Windows Application"), --v and wc.lpszClassName = LPCWSTR("WinApp"); --v I am doing something wrong, aren't I? Here is the full code (with no tweaks): ////////////////////////////////////////////////////// // BasicWindowsApp.cpp ////////////////////////////////////////////////////// #include <windows.h> // Function prototypes. LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); void RegisterWindowClass(HINSTANCE hInstance); void CreateAppWindow(HINSTANCE hInstance); WPARAM StartMessageLoop(); // Global variables. HWND g_hWnd; ////////////////////////////////////////////////////// // WinMain() ////////////////////////////////////////////////////// INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, INT) { RegisterWindowClass(hInstance); CreateAppWindow(hInstance); ShowWindow(g_hWnd, SW_SHOWDEFAULT); UpdateWindow(g_hWnd); int result = StartMessageLoop(); return result; } ////////////////////////////////////////////////////// // WndProc() ////////////////////////////////////////////////////// LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CREATE: return 0; case WM_DESTROY: PostQuitMessage( 0 ); return 0; case WM_PAINT: ValidateRect(g_hWnd, NULL); return 0; } return DefWindowProc(hWnd, msg, wParam, lParam); } ////////////////////////////////////////////////////// // RegisterWindowClass() ////////////////////////////////////////////////////// void RegisterWindowClass(HINSTANCE hInstance) { WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); wc.style = CS_HREDRAW \| CS_VREDRAW \| CS_OWNDC; wc.lpfnWndProc = WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = (HCURSOR)LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName = LPCWSTR("WinApp"); wc.hIconSm = NULL; RegisterClassEx(&wc); } ////////////////////////////////////////////////////// // CreateAppWindow() ////////////////////////////////////////////////////// void CreateAppWindow(HINSTANCE hInstance) { g_hWnd = CreateWindowEx( NULL, LPCWSTR("WinApp"), LPCWSTR("Basic Windows Application"), WS_OVERLAPPEDWINDOW, 100, 100, 648, 514, GetDesktopWindow(), NULL, hInstance, NULL); } ////////////////////////////////////////////////////// // StartMessageLoop() ////////////////////////////////////////////////////// WPARAM StartMessageLoop() { MSG msg; while(1) { if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { if (msg.message == WM_QUIT) break; TranslateMessage(&msg); DispatchMessage(&msg); } else { // Use idle time here. } } return msg.wParam; } --v Does this work for anyone? Anyone gonna fix it for meh Cheers, mole
Sun, 22 Oct 2006, 13:26
mole	Ahh, some guys on gamedev managed to help me. Basically, i had to get rid of the LPCWSTR that i had shoved in, and press Alt-F7 and change one of the properties to multi-byte something or other.. yeah .. but it works
Sun, 22 Oct 2006, 14:56
Jayenkai	You know what... That code is too darn C++ for me!! If it weren't for the DS stuff, I wouldn't be touching it! -=-=- ''Load, Next List!''