Archief - [PROG][C++] Initialisatie van DirectX

Ik heb dus net men boek uit van C++, en ik ben begonnen met DirectX. Maar het eerste programma wil niet compilen zonder foutmeldingen.. bedoeling is hier een blanco venster.

hier is de code:

#include <windows.h>

HINSTANCE hInst;
HWND wndHandle;

//forward declarations
bool initWindow(HINSTANCE hInstance); //prototype
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
if(!initWindow(hInstance))
return false;

MSG msg;
ZeroMemory( &msg, sizeof(msg));
while(msg.message!=WM_QUIT)
{
//Check message queue
while (GetMessage(&msg, wndHandle, 0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}

return (int) msg.wParam;
}



/******************************************************************************
* bool initWindow( HINSTANCE hInstance )
* initWindow registers the window class for the application, creates the window
******************************************************************************/
bool initWindow( HINSTANCE hInstance )
{
WNDCLASSEX wcex;

// Fill in the WNDCLASSEX structure. This describes how the window
// will look to the system
wcex.cbSize = sizeof(WNDCLASSEX); // the size of the structure
wcex.style = CS_HREDRAW | CS_VREDRAW; // the class style
wcex.lpfnWndProc = (WNDPROC)WndProc; // the window procedure callback
wcex.cbClsExtra = 0; // extra bytes to allocate for this class
wcex.cbWndExtra = 0; // extra bytes to allocate for this instance
wcex.hInstance = hInstance; // handle to the application instance
wcex.hIcon = 0; // icon to associate with the application
wcex.hCursor = LoadCursor(NULL, IDC_ARROW); // the default cursor
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); // the background color
wcex.lpszMenuName = NULL; // the resource name for the menu
wcex.lpszClassName = "DirectXExample"; // the class name being created
wcex.hIconSm = 0; // the handle to the small icon
RegisterClassEx(&wcex);

// Create the window
wndHandle = CreateWindow(
"DirectXExample", // the window class to use
"DirectXExample", // the title bar text
WS_OVERLAPPEDWINDOW, //the window style
CW_USEDEFAULT, // the starting x coordinate
CW_USEDEFAULT, // the starting y coordinate
640, // the pixel width of the window
480, // the pixel height of the window
NULL, // the parent window; NULL for desktop
NULL, // the menu for the application; NULL for none
hInstance, // the handle to the application instance
NULL); // no values passed to the window
// Make sure that the window handle that is created is valid
if (!wndHandle)
return false;

// Display the window on the screen
ShowWindow(wndHandle, SW_SHOW);
UpdateWindow(wndHandle);
return true;
}



/******************************************************************************
* LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
* LPARAM lParam)
* The window procedure
******************************************************************************/
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
// Check any available messages from the queue
switch (message)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
}
// Always return the message to the default window
// procedure for further processing
return DefWindowProc(hWnd, message, wParam, lParam);
}


en hier is de foutmelding:
1>------ Build started: Project: example1, Configuration: Debug Win32 ------
1>Compiling...
1>winmain.cpp
1>c:\program files\microsoft visual studio 8\user files\projects\example1\example1\winmain.cpp(52) : error C2440: '=' : cannot convert from 'const char [15]' to 'LPCWSTR'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>c:\program files\microsoft visual studio 8\user files\projects\example1\example1\winmain.cpp(68) : error C2664: 'CreateWindowExW' : cannot convert parameter 2 from 'const char [15]' to 'LPCWSTR'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>Build log was saved at "file://c:\Program Files\Microsoft Visual Studio 8\User Files\Projects\example1\example1\Debug\BuildLog.htm"
1>example1 - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

kan iemand die hier ervaring mee heeft me mee helpen? thx.

LPCWSTR is unicode (wchar_t), ma ge zult nog steeds implicit moeten casten aangezien winapi met short werkt.

euhm... ben net me DirectX begonnen, ma moet ik nu iets gaan wijzigen?

IceSkull[BE] zei:

euhm... ben net me DirectX begonnen, ma moet ik nu iets gaan wijzigen?

Klik om te vergroten...

ah, zie et al

ipv gewoon "string" te gebruiken:
TEXT("string")

zou geen fouten mogen geven.
dit is trouwens winapi en geen directx

ah kweeni, tis nen boek van Course PTR.. en er staat vanboven:
Chapter 2 :: Your first DirectX Program

don't blaim me

aaaaaaaaah nu werkt em... thx eh man!