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窗口子类化
#include <windows.h>
#define ID_EDIT 1
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK NewWndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam);
WNDPROC OldWndProc;
static HINSTANCE hIns;
char temp[505];
TCHAR szAppName[] = TEXT ("Lab11") ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
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 ("Failed to RegisterClass!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, szAppName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
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)
{
static HWND hwndEdit ;
switch (message)
{
case WM_CREATE :
hIns=((LPCREATESTRUCT)lParam)->hInstance;
hwndEdit = CreateWindow (TEXT ("edit"), NULL,
WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
WS_BORDER | ES_LEFT | ES_MULTILINE |
ES_AUTOHSCROLL | ES_AUTOVSCROLL,
0, 0, 0, 0, hwnd, (HMENU) ID_EDIT,
((LPCREATESTRUCT) lParam) -> hInstance, NULL) ;
OldWndProc=(WNDPROC)SetWindowLong(hwndEdit,GWL_WNDPROC,(long)NewWndProc);
return 0 ;
case WM_SETFOCUS :
SetFocus (hwndEdit) ;
return 0 ;
case WM_SIZE :
MoveWindow (hwndEdit, 0, 0, LOWORD (lParam), HIWORD (lParam), TRUE) ;
return 0 ;
case WM_COMMAND :
if (LOWORD (wParam) == ID_EDIT){
if (HIWORD (wParam) == EN_ERRSPACE ||
HIWORD (wParam) == EN_MAXTEXT)
MessageBox (hwnd, TEXT ("Edit control out of space."),
szAppName, MB_OK | MB_ICONSTOP) ;
}
return 0 ;
case WM_DESTROY :
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
POINT p;
char num[][10]={"January","September"};
LRESULT CALLBACK NewWndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
HMENU hMenu,hMenuTrackPopup;
switch(message){
case WM_KEYDOWN:
switch(wParam){
case VK_F1:
MessageBox (hWnd, TEXT ("需要的信息!"),szAppName, MB_OK | MB_ICONINFORMATION) ;
break;
}
break;
case WM_RBUTTONDOWN:
hMenu=LoadMenu(hIns,MAKEINTRESOURCE(101));
hMenuTrackPopup=GetSubMenu(hMenu,0);
p.x=LOWORD(lParam);
p.y=HIWORD(lParam);
ClientToScreen(hWnd,&p);
TrackPopupMenu(hMenuTrackPopup,TPM_TOPALIGN|TPM_LEFTALIGN,p.x,p.y,0,hWnd,0);
break;
case WM_COMMAND:
switch(LOWORD(wParam)){
case 40001:
memset(temp,0,sizeof(temp));
SendMessageA(hWnd,WM_GETTEXT,500,(LPARAM)&temp);
strcat(temp,num[0]);
SendMessageA(hWnd,WM_SETTEXT,500,(LPARAM)&temp);
//MessageBox (hWnd, TEXT ("1"),szAppName, MB_OK | MB_ICONINFORMATION) ;
break;
case 40002:
//MessageBox (hWnd, TEXT ("2"),szAppName, MB_OK | MB_ICONINFORMATION) ;
memset(temp,0,sizeof(temp));
SendMessageA(hWnd,WM_GETTEXT,500,(LPARAM)&temp);
strcat(temp,num[1]);
SendMessageA(hWnd,WM_SETTEXT,500,(LPARAM)&temp);
break;
}
break;
}
return CallWindowProc(OldWndProc,hWnd,message,wParam,lParam);
}