win32 C RegisterClass失败
刚学win32没多久,,按书上的代码打了一遍,,,.
也没找到相关的资料..
很普通的代码：
#include
#include
#include
LRESULTCALLBACKWinSunProc(
HWNDhwnd,UINTuMsg,WPARAMwparam,LPARAMlparam
);
intWINAPIWinMain(
HINSTANCEhinstance,
HINSTANCEhprevInstance,
LPSTRlpCmdLine,
intnCmdShow)
{
WNDCLASSwndcls;
wndcls.cbClsExtra=0;
wndcls.cbWndExtra=0;
wndcls.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
wndcls.hCursor=LoadCursor(NULL,IDC_CROSS);
wndcls.hIcon=LoadIcon(NULL,IDI_ERROR);
wndcls.hInstance=hinstance;
wndcls.lpfnWndProc=WinSunProc;
wndcls.lpszClassName=_T("lihui");
wndcls.lpszClassName=NULL;
wndcls.style=CS_HREDRAW|CS_VREDRAW;
if(!RegisterClass(&wndcls))
return0;
HWNDhwnd;
hwnd=CreateWindow(_T("lihui"),_T("frank"),WS_OVERLAPPEDWINDOW,0,0,600,400,NULL,NULL,hinstance,NULL);
ShowWindow(hwnd,SW_SHOWNORMAL);
UpdateWindow(hwnd);
MSGmsg;
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
returnmsg.wParam;
}
LRESULTCALLBACKWinSunProc(
HWNDhwnd,
UINTuMsg,
WPARAMwparam,
LPARAMlparam)
{
switch(uMsg)
{
caseWM_CHAR:
charszChar[20];
sprintf(szChar,"charcodeis%d",wparam);
MessageBoxA(hwnd,szChar,"char",0);
break;
caseWM_LBUTTONDOWN:
MessageBoxA(hwnd,"mouseclicked","message",0);
HDChdc;
hdc=GetDC(hwnd);
TextOut(hdc,0,50,_T("frank"),strlen("frank"));
caseWM_PAINT:
HDChDC;
PAINTSTRUCTps;
hDC=BeginPaint(hwnd,&ps);
TextOut(hDC,0,0,_T(""),strlen(""));
EndPaint(hwnd,&ps);
break;
caseWM_CLOSE:
if(IDYES==MessageBoxA(hwnd,"ÊÇ·ñÕæµÄ½áÊø£¿","message",MB_YESNO))
{
DestroyWindow(hwnd);
}
break;
caseWM_DESTROY:
PostQuitMessage(0);
break;
default:
returnDefWindowProc(hwnd,uMsg,wparam,lparam);
}
return0;
}
------解决方案--------------------
WNDCLASSwndcls;改成
WNDCLASSwndcls={};
不然你那样的代码，这wndcls里面好几个成员都是无效值。。。
