//////////////////////////////////////////////////////
// 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);
StartMessageLoop();
return 0;
}
//////////////////////////////////////////////////////
// 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 = "WinApp"; // there is error 1
wc.hIconSm = NULL;
RegisterClassEx(&wc);
}
//////////////////////////////////////////////////////
// CreateAppWindow()
//////////////////////////////////////////////////////
void CreateAppWindow(HINSTANCE hInstance)
{
g_hWnd = CreateWindowEx(
NULL,
"WinApp",
"Basic Windows Application",
WS_OVERLAPPEDWINDOW,
100,
100,
648,
514,
GetDesktopWindow(),
NULL,
hInstance,
NULL); // there is error 2
}
//////////////////////////////////////////////////////
// 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;
}
BasicApplication
Hi, I have got a problem with compiling code from book by Clayton Walnum about Direct3D. It shows me two errors. Its just basic application.
I am compiling it in Visual C++ 2008 as Win32 Project.
Firs error is in function RegisterWindowClass(HINSTANCE hInstance).
Error 1:
error C2440: '=' : cannot convert from 'const char [7]' to 'LPCWSTR'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Second error is in function CreateAppWindow(HINSTANCE hInstance).
Error 2:
error C2664: 'CreateWindowExW' : cannot convert parameter 2 from 'const char [7]' to 'LPCWSTR'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
This Code is from book:
Than you for help.
[Edited by - ApochPiQ on September 11, 2009 6:11:25 PM]
This topic is closed to new replies.
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