鼠标双击

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#include "stdafx.h" #include <windows.h>   HANDLE g_hHandle = NULL;   LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) {     AllocConsole();     g_hHandle = GetStdHandle( STD_OUTPUT_HANDLE );       static TCHAR szAppName[] = TEXT ("QwopWindow");     HWND         hwnd;     MSG          msg;     WNDCLASSEX   wndclassex = {0};     wndclassex.cbSize        = sizeof(WNDCLASSEX);     wndclassex.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;     wndclassex.lpfnWndProc   = WndProc;     wndclassex.cbClsExtra    = 0;     wndclassex.cbWndExtra    = 0;     wndclassex.hInstance     = hInstance;     wndclassex.hIcon         = LoadIcon (NULL, IDI_APPLICATION);     wndclassex.hCursor       = LoadCursor (NULL, IDC_ARROW);     wndclassex.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);     wndclassex.lpszMenuName  = NULL;     wndclassex.lpszClassName = szAppName;     wndclassex.hIconSm       = wndclassex.hIcon;           if (!RegisterClassEx (&wndclassex))     {         MessageBox (NULL, TEXT ("RegisterClassEx failed!"), szAppName, MB_ICONERROR);         return 0;     }     hwnd = CreateWindowEx (WS_EX_OVERLAPPEDWINDOW,         szAppName,         TEXT ("左键双击消息"),         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) {     HDC hdc;     PAINTSTRUCT ps;     static TCHAR szWmbtn[] = TEXT( "WM_LBUTTONDBLCLK\n" );     switch (message)     {     case WM_CREATE:         return (0);     case WM_LBUTTONDBLCLK:         WriteConsole( g_hHandle, szWmbtn , sizeof( szWmbtn ) , NULL, NULL );         return (0 );     case WM_MOUSEWHEEL :         /* fwKeys = LOWORD( wParam ); zDelta = ( short ) HIWORD( wParam );   xPos = ( short ) LOWORD( lParam ); yPos = ( short ) HIWORD( lParam );         */         return 0;     case WM_PAINT:         hdc = BeginPaint (hwnd, &ps);         TextOut (hdc, 0, 0, "Test", 4 );         EndPaint (hwnd, &ps);         return (0);               case WM_DESTROY:         PostQuitMessage (0);         return (0);     }     return DefWindowProc (hwnd, message, wParam, lParam); }