win32新手求教,该如何处理

win32新手求教
[code=C/C++][/LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent,x,y;
PAINTSTRUCT ps;
HDC hdc;
char msg[128];
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// 分析菜单选择:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
break;
case WM_CHAR://这个是老师写的一个显示键盘按键的case，运行时，按键盘没反应
sprintf_s(msg,"%c",wParam);
MessageBox(hWnd,msg,"info",MB_OK);break;
case WM_LBUTTONDOWN://这个是老师写的显示鼠标左键点击位置的case，编译就不通过
x= (LOWORD) lParam;
y= (HIWORD) lParam;
sprintf(msg,"x=%d","y=%d",x,y);
MessageBox(hWnd,msg,"info",MB_OK);break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: 在此添加任意绘图代码...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
]这是老师讲的用win32获取键盘按键，并显示出来，获取鼠标点击左键的位置并显示出来的程序，可能我这少了一些东西，刚接触win32，搞不懂为什么是错的，求大神们帮助
------解决方案--------------------

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

	int wmId, wmEvent,x,y;

	PAINTSTRUCT ps;

	HDC hdc;

	char msg[128];

	switch (message)

	{

	case WM_COMMAND:

		{

			wmId = LOWORD(wParam);

			wmEvent = HIWORD(wParam);

			// 分析菜单选择:

			switch (wmId)

			{

			case IDM_ABOUT:

				DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

				break;

			}

		}

	case WM_CHAR://这个是老师写的一个显示键盘按键的case，运行时，按键盘没反应

		sprintf_s(msg,"%c",wParam);

		MessageBox(hWnd,msg,"info",MB_OK);

		break;

	case WM_LBUTTONDOWN://这个是老师写的显示鼠标左键点击位置的case，编译就不通过

		x= (LOWORD) lParam;

		y= (HIWORD) lParam;

		sprintf(msg,"x=%d","y=%d",x,y);

		MessageBox(hWnd,msg,"info",MB_OK);

		break;

	case IDM_EXIT:

		DestroyWindow(hWnd);

		break;

	case WM_PAINT:

		hdc = BeginPaint(hWnd, &ps);

		// TODO: 在此添加任意绘图代码...

		EndPaint(hWnd, &ps);

		break;

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	default:

		return DefWindowProc(hWnd, message, wParam, lParam);

		break;

	}	


}

return 0;

}

------解决方案--------------------

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

	int wmId, wmEvent,x,y;

	PAINTSTRUCT ps;

	HDC hdc;

	char msg[128];

	switch (message)

	{

	case WM_COMMAND:

		{

			wmId = LOWORD(wParam);

			wmEvent = HIWORD(wParam);

			// 分析菜单选择:

			switch (wmId)

			{

			case IDM_ABOUT:

				DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

				break;

			}

		}

win32新手求教,该如何处理

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