win32 C RegisterClass失败

M阳光 2014-06-14 01:53:54

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 <windows.h>

#include <stdio.h>

#include <tchar.h>

LRESULT CALLBACK	WinSunProc(

	HWND hwnd,UINT uMsg,WPARAM wparam,LPARAM lparam

	);



int WINAPI WinMain(

	HINSTANCE hinstance,

	HINSTANCE hprevInstance,

	LPSTR lpCmdLine,

	int nCmdShow)

{

	WNDCLASS wndcls;

	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))

        return 0;





	HWND hwnd;

	hwnd=CreateWindow(_T("lihui"),_T("frank"),WS_OVERLAPPEDWINDOW,0,0,600,400,NULL,NULL,hinstance,NULL);

	ShowWindow(hwnd,SW_SHOWNORMAL);

	UpdateWindow(hwnd);

	MSG msg;

	while (GetMessage(&msg,NULL,0,0))

	{

		TranslateMessage(&msg);

		DispatchMessage(&msg);

	}

	return msg.wParam;



}



LRESULT CALLBACK WinSunProc(

	HWND hwnd,

	UINT uMsg,

	WPARAM wparam,

	LPARAM lparam )

{

	switch(uMsg)

	{

	case WM_CHAR:

		char szChar[20];

		sprintf(szChar,"char code is %d",wparam);

		MessageBoxA(hwnd,szChar,"char",0);

		break;

	case WM_LBUTTONDOWN:

		MessageBoxA(hwnd,"mouse clicked","message",0);

		HDC hdc;

		hdc=GetDC(hwnd);

		TextOut(hdc,0,50,_T("frank"),strlen("frank"));

	case WM_PAINT:

		HDC hDC;

		PAINTSTRUCT ps;

		hDC=BeginPaint(hwnd,&ps);

		TextOut(hDC,0,0,_T("www.myangguang.com"),strlen("www.myangguang.com"));

		EndPaint(hwnd,&ps);

		break;

	case WM_CLOSE:

		if(IDYES==MessageBoxA(hwnd,"ÊÇ·ñÕæµÄ½áÊø£¿","message",MB_YESNO))

		{

			DestroyWindow(hwnd);

		}

		break;

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	default:

		return DefWindowProc(hwnd,uMsg,wparam,lparam);

	}

	return 0;

}