#include <windows.h>HWND ghWnd=NULL;
HINSTANCE ghInst=NULL;LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam);int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow);LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch(message)
{
case WM_CREATE:
MessageBox(hwnd,"recieved WM_CREATE message","MESSAGE",MB_OK);
break;
case WM_DESTROY:
MessageBox(hwnd,"recieved WM_DESTROY message","MESSAGE",MB_OK);
PostQuitMessage(0);
break;
default:
return(DefWindowProc(hwnd,message,wParam,lParam));
}
return (FALSE);
}int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
WNDCLASS wc;
MSG msg;
ghInst = hInstance;
wc.style =CS_HREDRAW|CS_VREDRAW;
wc.lpfnWndProc =WndProc;
wc.cbClsExtra =0;
wc.cbWndExtra =0;
wc.hInstance =hInstance;
wc.hIcon =LoadIcon(NULL,IDI_APPLICATION);
wc.hCursor =LoadCursor(NULL,IDC_ARROW);
wc.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wc.lpszMenuName=NULL;
wc.lpszClassName="My test Program";
RegisterClass(&wc);
ghWnd=CreateWindow(
"My test windows program",
"Welcome to Windows",
WS_OVERLAPPEDWINDOW,
0,
0,
400,
400,
NULL,
0,
hInstance,
NULL
);
if (NULL == ghWnd) //★★★★为什么ghWnd 总是NULL ? Win98,VC6.0下
{
return(0);
}
ShowWindow(ghWnd,nCmdShow);
UpdateWindow(ghWnd);
while(1)
{
if (GetMessage(&msg,NULL,0,0) == FALSE )
{
return(msg.wParam);
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
HINSTANCE ghInst=NULL;LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam);int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow);LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch(message)
{
case WM_CREATE:
MessageBox(hwnd,"recieved WM_CREATE message","MESSAGE",MB_OK);
break;
case WM_DESTROY:
MessageBox(hwnd,"recieved WM_DESTROY message","MESSAGE",MB_OK);
PostQuitMessage(0);
break;
default:
return(DefWindowProc(hwnd,message,wParam,lParam));
}
return (FALSE);
}int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
WNDCLASS wc;
MSG msg;
ghInst = hInstance;
wc.style =CS_HREDRAW|CS_VREDRAW;
wc.lpfnWndProc =WndProc;
wc.cbClsExtra =0;
wc.cbWndExtra =0;
wc.hInstance =hInstance;
wc.hIcon =LoadIcon(NULL,IDI_APPLICATION);
wc.hCursor =LoadCursor(NULL,IDC_ARROW);
wc.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wc.lpszMenuName=NULL;
wc.lpszClassName="My test Program";
RegisterClass(&wc);
ghWnd=CreateWindow(
"My test windows program",
"Welcome to Windows",
WS_OVERLAPPEDWINDOW,
0,
0,
400,
400,
NULL,
0,
hInstance,
NULL
);
if (NULL == ghWnd) //★★★★为什么ghWnd 总是NULL ? Win98,VC6.0下
{
return(0);
}
ShowWindow(ghWnd,nCmdShow);
UpdateWindow(ghWnd);
while(1)
{
if (GetMessage(&msg,NULL,0,0) == FALSE )
{
return(msg.wParam);
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
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"My test windows program",window class name does not match
HELLOWIN.C -- Displays "Hello, Windows 98!" in client area
(c) Charles Petzold, 1998
------------------------------------------------------------*/#include <windows.h>LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("HelloWin") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ; if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, // window class name
TEXT ("The Hello Program"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL) ; // creation parameters
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_CREATE:
PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("Hello, Windows 98!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
//return DefWindowProc (hwnd, message, wParam, lParam) ;
return TRUE;
}
LPCTSTR lpClassName, // registered class name *NOTICE*
LPCTSTR lpWindowName, // window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // menu handle or child identifier
HINSTANCE hInstance, // handle to application instance
LPVOID lpParam // window-creation data
);
The registered window class name is "My test Program", but you use a unregistered window class named "My test windows program" when you create the window.
GFA(给分啊)
ghWnd=CreateWindow(wc.lpszClassName,....)
便可以了
"My test windows program",//you wc.lpszClassName