GetClipboardData() 函数的第一个参数问题

#include <windows.h>

#define UNICODE



LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);



int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)

{

    static TCHAR szAppName[] = TEXT ("ClipView");

    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 ("Simple Clip Viewer (Text Only)"), // 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)

{

	static HWND	hwndNextViewer;

	PTSTR		pGlobal;

	HGLOBAL		hGlobal;

    HDC         hdc;

    PAINTSTRUCT ps;

    RECT        rect;

     

    switch (message)

    {

    case WM_CREATE:



		hwndNextViewer = SetClipboardViewer (hwnd);

        return (0);



	case WM_CHANGECBCHAIN:

		if ((HWND) wParam == hwndNextViewer)

		{

			hwndNextViewer = (HWND) lParam;

		}

		else

			if (hwndNextViewer)

			{

				SendMessage (hwndNextViewer, message, wParam, lParam);

			}

		return (0);



	case WM_DRAWCLIPBOARD:

		if (hwndNextViewer)

		{

			SendMessage (hwndNextViewer, message, wParam, lParam);

		}

		InvalidateRect (hwnd, NULL, TRUE);

		return (0);

          

    case WM_PAINT:

        hdc = BeginPaint (hwnd, &ps);     

        GetClientRect (hwnd, &rect);

      

		OpenClipboard (hwnd);

		hGlobal = GetClipboardData (CF_TEXT); //这里的疑问，MSDN中说 CF_TEXT 是ANSI CF_UNICODETEXT是 UNICODE， 但是这个程序偏偏要使用 CF_TEXT 偏偏能显示中文.....而CF_UNICODETEXT 只能显示错误的



		

		if (hGlobal != NULL)

		{

			pGlobal = (PTSTR) GlobalLock (hGlobal);

			DrawText (hdc, pGlobal, -1, &rect, DT_EXPANDTABS);

			GlobalUnlock (hGlobal);

		}

        CloseClipboard ();

        EndPaint (hwnd, &ps);

        return (0);

          

    case WM_DESTROY:

		ChangeClipboardChain (hwnd, hwndNextViewer);

        PostQuitMessage (0) ;

        return (0);

    }

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

}

问题在注释中。。。

对编码一直有中疑惑。。。TXT文档 保存有 ANSI 类型，为什么能够显示类型，不是说ANSI 才8位嘛。。。